Learning object 2
•
0 likes•222 views
The document discusses the reflection and transmission of mechanical waves. It states that when a pulse is reflected from a fixed end, it is inverted, but when reflected from a free end it is not inverted. It also notes that when a pulse travels from a less dense to a more dense medium, it is inverted, but not inverted when going from more dense to less dense. Multiple true/false questions are included to reinforce these concepts.
Report
Share
Report
Share
Download to read offline
Recommended
Clippers circuits
This document describes different types of clipping circuits that AbdulWahab Raza experimented with for his class assignment. It discusses positive, negative, positive-biased, and negative-biased clipper circuits. For each circuit, it explains the circuit components used and describes the resulting waveform observed on an oscilloscope. The circuits are designed to reduce or remove portions of an alternating current waveform in either the positive or negative cycle.
Leyes de kirchhoff
This document discusses circuits and Kirchhoff's rules for DC circuits. It introduces common circuit symbols and defines Kirchhoff's rules - the junction rule and the loop rule. It explains conventions for sign assignments in circuits, such as the polarity of battery voltages and the direction of resistor voltage drops. Kirchhoff's rules for nodes and meshes are demonstrated with examples of their use in circuit analysis.
Waves
This document discusses two types of waves: transverse waves, which involve oscillations perpendicular to the direction of travel, and longitudinal waves, which involve compressions and rarefactions along the direction of travel. It also defines key wave properties including speed, frequency, wavelength, amplitude, period, and their relationships. Speed refers to how fast a wave moves, frequency is the number of waves passing per second, wavelength is the distance between wavefronts, amplitude is the magnitude of the wave, and period and frequency are inversely related, with period being the time for one wave cycle and frequency being the number of waves per second.
Living things
The document defines the characteristics of life as movement, respiration, sensitivity, growth, reproduction, excretion, and nutrition. It provides brief explanations of each characteristic, such as that respiration is the chemical reaction that releases energy from food within cells and that excretion is the elimination of waste from metabolic processes through organs or diffusion. The document also lists examples of living things that possess these characteristics, including humans, animals, trees, plants, mold, and fungi.
Sim skeletal system-1 (autosaved)
This document provides a strategic intervention material about the human skeletal system for a science class. It includes 10 terms related to bones and the skeletal system embedded in a puzzle for students to find. It then presents 5 facts about the skeletal system, including the number of bones in newborns versus adults, the 5 main functions of the skeletal system, and the 2 divisions of bones. The document provides activities for students to complete including matching questions, multiple choice, and labeling diagrams to test their understanding of the human skeletal system.
CELL - PART 1
The document discusses cells and cell theory. It notes that Robert Hooke first observed cells in 1665 and that Schleiden and Schwann established cell theory in 1838-39, stating that all living things are composed of cells and that the cell is the basic unit of life. It further explains that Virchow modified cell theory in 1885 to state that all cells come from pre-existing cells. The modern cell theory states that all organisms are made of cells, cells are the basic functional units of life, and all cells come from pre-existing cells. The document also discusses cell size, shapes, and functions.
Cell
The document discusses the key aspects of cells including their history, structure, size, shapes, and transport mechanisms. Some of the main points covered are:
- Cells are the basic unit of life according to cell theory established in the 1830s-1840s.
- Cell size can range from 0.1 μm for the smallest bacterium to 18 cm for an ostrich egg.
- Cells come in a variety of shapes depending on their function, such as circular red blood cells for easy passage through vessels.
- The plasma membrane is a selectively permeable barrier that regulates what enters and exits the cell.
- Transport mechanisms like osmosis and diffusion allow for movement of molecules and water across
The general characteristic of living organism
This document discusses habitats and biodiversity. It describes various habitats including forests, deserts, mangrove swamps, soils, polar regions, and seas. For each habitat it lists some of the common plant and animal organisms found living there, such as snakes, elephants and birds in forests; camels, lizards and rats in deserts; and penguins, seals and walrus in polar regions. The document emphasizes that habitat is important for organisms as it provides food, protection, and space for breeding.
Recommended
Clippers circuits
This document describes different types of clipping circuits that AbdulWahab Raza experimented with for his class assignment. It discusses positive, negative, positive-biased, and negative-biased clipper circuits. For each circuit, it explains the circuit components used and describes the resulting waveform observed on an oscilloscope. The circuits are designed to reduce or remove portions of an alternating current waveform in either the positive or negative cycle.
Leyes de kirchhoff
This document discusses circuits and Kirchhoff's rules for DC circuits. It introduces common circuit symbols and defines Kirchhoff's rules - the junction rule and the loop rule. It explains conventions for sign assignments in circuits, such as the polarity of battery voltages and the direction of resistor voltage drops. Kirchhoff's rules for nodes and meshes are demonstrated with examples of their use in circuit analysis.
Waves
This document discusses two types of waves: transverse waves, which involve oscillations perpendicular to the direction of travel, and longitudinal waves, which involve compressions and rarefactions along the direction of travel. It also defines key wave properties including speed, frequency, wavelength, amplitude, period, and their relationships. Speed refers to how fast a wave moves, frequency is the number of waves passing per second, wavelength is the distance between wavefronts, amplitude is the magnitude of the wave, and period and frequency are inversely related, with period being the time for one wave cycle and frequency being the number of waves per second.
Living things
The document defines the characteristics of life as movement, respiration, sensitivity, growth, reproduction, excretion, and nutrition. It provides brief explanations of each characteristic, such as that respiration is the chemical reaction that releases energy from food within cells and that excretion is the elimination of waste from metabolic processes through organs or diffusion. The document also lists examples of living things that possess these characteristics, including humans, animals, trees, plants, mold, and fungi.
Sim skeletal system-1 (autosaved)
This document provides a strategic intervention material about the human skeletal system for a science class. It includes 10 terms related to bones and the skeletal system embedded in a puzzle for students to find. It then presents 5 facts about the skeletal system, including the number of bones in newborns versus adults, the 5 main functions of the skeletal system, and the 2 divisions of bones. The document provides activities for students to complete including matching questions, multiple choice, and labeling diagrams to test their understanding of the human skeletal system.
CELL - PART 1
The document discusses cells and cell theory. It notes that Robert Hooke first observed cells in 1665 and that Schleiden and Schwann established cell theory in 1838-39, stating that all living things are composed of cells and that the cell is the basic unit of life. It further explains that Virchow modified cell theory in 1885 to state that all cells come from pre-existing cells. The modern cell theory states that all organisms are made of cells, cells are the basic functional units of life, and all cells come from pre-existing cells. The document also discusses cell size, shapes, and functions.
Cell
The document discusses the key aspects of cells including their history, structure, size, shapes, and transport mechanisms. Some of the main points covered are:
- Cells are the basic unit of life according to cell theory established in the 1830s-1840s.
- Cell size can range from 0.1 μm for the smallest bacterium to 18 cm for an ostrich egg.
- Cells come in a variety of shapes depending on their function, such as circular red blood cells for easy passage through vessels.
- The plasma membrane is a selectively permeable barrier that regulates what enters and exits the cell.
- Transport mechanisms like osmosis and diffusion allow for movement of molecules and water across
The general characteristic of living organism
This document discusses habitats and biodiversity. It describes various habitats including forests, deserts, mangrove swamps, soils, polar regions, and seas. For each habitat it lists some of the common plant and animal organisms found living there, such as snakes, elephants and birds in forests; camels, lizards and rats in deserts; and penguins, seals and walrus in polar regions. The document emphasizes that habitat is important for organisms as it provides food, protection, and space for breeding.
Motion speed
The document discusses speed and motion. It provides examples of the fastest animals, humans, vehicles, and other objects. It discusses key concepts such as speed being the distance traveled over time. Motion is defined as relative based on the frame of reference. Speed, time, and distance are shown to have a direct relationship through equations. Constant and average speed are also explained.
Longitudinal And Transverse Waves
There are two main types of waves: longitudinal waves and transverse waves. Longitudinal waves involve compression and rarefaction of the transmitting medium, while transverse waves involve oscillation perpendicular to the direction of travel. Polarization is evidence of the transverse nature of waves - polarizers can absorb waves with certain orientations. Many applications make use of the polarized nature of transverse waves, such as sunglasses reducing glare from reflected light and polarizing filters increasing contrast in camera lenses.
7-2. the characteristics of living organism
The document describes the key characteristics of living organisms: movement, eating, breathing, irritability, growth, excretion, and reproduction. It provides examples of how different organisms such as plants, animals, and humans demonstrate each characteristic. The document also compares and contrasts how living and non-living things exhibit these characteristics.
WAVE AND ITS PROPERTIES
The document defines key terms related to waves, including:
- Crest, trough, amplitude, wavelength, frequency, period, wave speed, wavelength, loudness, intensity, quality, and pitch. It also describes transverse waves, where particles vibrate perpendicular to the wave, and longitudinal waves, where particles vibrate parallel to the wave. Reflection and diffraction of waves are also discussed.
Waves
1. Waves can be either longitudinal or transverse, depending on the direction of particle motion relative to the wave propagation.
2. The key parts of a wave include the crest (maximum displacement), trough (minimum displacement), wavelength (distance between two similar points), amplitude (maximum displacement from rest), and frequency (number of waves passing a point per unit time).
3. The speed of a wave can be calculated using the formula: speed = frequency x wavelength.
Physics M5 Types of waves and wave parameters
This document discusses types of waves and wave parameters. It begins by outlining the objectives of identifying types of waves, differentiating between them, and identifying wave parameters and dependencies. It then defines waves and introduces two main types: mechanical and electromagnetic waves. Mechanical waves are further divided into longitudinal waves, where particle motion is parallel to the energy propagation, and transverse waves, where particle motion is perpendicular. Five key wave parameters - amplitude, period, frequency, wavelength, and wave speed - are defined and their relationships explored. Examples of different wave types are provided.
Lesson in physics wave and its properties
1. A longitudinal wave is a wave where the particle motion is parallel to the wave direction, while a transverse wave has particle motion perpendicular to the direction.
2. Refraction occurs when the speed and direction of a wave changes due to changing medium, such as light bending as it passes from air to water.
3. Diffraction is the bending of waves around obstacles, seen with water waves passing objects or light diffracting through slits forming interference patterns like rainbows.
Sim Photosynthesis
- Photosynthesis is a two-stage process where light energy is converted to chemical energy. The light reaction uses light energy to produce ATP and NADPH. The dark reaction uses these products to fix carbon and produce glucose.
- The light reaction takes place in the thylakoids and splits water, producing oxygen and energized electrons. These electrons are used to produce ATP and NADPH.
- The dark reaction occurs in the stroma and uses ATP and NADPH to fix carbon from CO2 into glucose, producing oxygen as a byproduct. This provides the basic energy and materials for plant growth and survival.
Effects of Strategic Intervention Material on the Academic Achievements in Ch...
Chosen as the Best Thesis for Masters Degree batch 2012
Thesis on Effects of Strategic Intervention Material on the Academic Achievements in Chemistry of Public High School
Strategic Intervention Material in Physics IV
Strategic Intervention Material in Refraction of Light, a intervention material in Dona Rosario National High School year 2011
SIM: Matter
Strategic Intervention Material for Sta. rosa elementary school centra III (Special Science elementary school)
Science Intervention materials on science
This document is a science intervention material that discusses the concepts of force and work. It uses pictures, examples, and activities to teach students about different types of forces (contact vs. non-contact), what constitutes work, and how to calculate work using various formulas. The material guides students through examples of determining if a situation involves a contact or non-contact force, identifying whether work is being done in images, and solving word problems to calculate work done. It also includes review questions and activities to help students assess their understanding of these core science concepts.
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEM
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEMSophia Marie Verdeflor
The document provides information about the circulatory system. It explains that the circulatory system is responsible for transporting nutrients, water, oxygen, and waste throughout the body using the heart, blood vessels, and blood. The heart pumps blood through a network of arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart while veins carry deoxygenated blood back to the heart. Capillaries allow for the exchange of gases, water, and nutrients between blood and body tissues. The document also describes the components and functions of the heart and blood in more detail.Science intervention material SCIENCE PHOTOSYNTHESIS
This document is a science intervention material that provides instruction on the concepts of force and work. It uses examples, activities, and problems to teach students about different types of forces (contact vs. non-contact), what qualifies as work being done, and how to calculate work using various formulas. The material guides students through worked examples and encourages them to identify forces and calculate work in different situations. It also includes a game to help students learn related vocabulary words. The overall document aims to build students' understanding of key physics concepts through interactive lessons and practice problems.
Force and motion
Forces and motion are discussed in this document. It defines a force as a push or pull and explains that all motion is due to forces acting on objects. Motion is defined as a change in an object's position over time. Balanced and unbalanced forces are compared, with unbalanced forces being able to cause motion. Common forces like gravity, friction, and air resistance are described. Examples are provided to illustrate key concepts around forces.
Force.Ppt
Force is a push or pull that can cause motion or acceleration. It is measured in Newtons and all forces are interactions between objects. The net force is calculated by adding forces in the same direction and subtracting forces in opposite directions, with an unbalanced net force producing motion.
Strategic Intervention Materials
This document provides an overview and activities on solving quadratic equations by factoring. It begins by defining quadratic equations and their standard form. Several activities are presented to practice identifying quadratic equations, rewriting them in standard form, and factoring trinomials of the form x^2 + bx + c. The final activity involves factoring quadratic equations to determine their roots. The document aims to build mastery of skills needed to solve quadratic equations using factoring techniques.
MOTION Class IX PowerPoint Presentation
1. Motion is defined as a change in position of an object over time relative to its surroundings. An object is said to be at rest if its position does not change over time relative to its surroundings.
2. Motion can be classified as translatory, rotational, or periodic. Translatory motion involves straight-line motion, rotational motion involves motion around a fixed axis, and periodic motion repeats over regular time intervals.
3. Physical quantities can be scalar or vector. Scalar quantities only require magnitude, while vector quantities require both magnitude and direction. Examples of scalars include mass and time, while examples of vectors include velocity and displacement.
Force and Motion Review ppt
This document provides an overview of key concepts related to force and motion, including definitions and formulas. It defines a force as a push or pull and notes they have both size and direction. It explains net forces result from combining multiple forces and discusses balanced and unbalanced forces. Key terms like motion, speed, velocity, acceleration, inertia, and Newton's Three Laws of Motion are defined. Formulas for speed, acceleration, weight, and examples of applications of the three laws are also presented.
Design in motion. The new frontier of interaction design
Animation can explain behaviours better than thousand of words that’s why interaction designer should learn from motion designer.
Technological advances have allowed, in the last few years, a big step forward in the dynamic behaviors and interactions patterns that we used to do with software in the past. Motion is one of the key element of this change but how can we imagine & sketch the way something feels & reacts? Starting from the basic of motion design, we’ll discover a set of “standard” motion patterns and how we can sketch & use them in a design project to increase affordance, to simplify complex interactions and to give a new dynamic brand identity to our products.
Presented @Interaction 14, Amsterdam
http://interaction14.ixda.org/program/saturday/241-design-in-motion-the-new
Talk here:
https://vimeo.com/86763511
Cmpe226_Ch8.ppt
The document discusses various characteristics of alternating current (AC) signals including sine waves, frequency, amplitude, phase, and power calculations. It defines key terms such as period, instantaneous value, peak value, root mean square value, harmonics, and phasors. Equations are provided to calculate the instantaneous voltage of a sine wave at a given angle as well as power dissipated by a resistive AC circuit. [/SUMMARY]
More Related Content
Viewers also liked
Motion speed
The document discusses speed and motion. It provides examples of the fastest animals, humans, vehicles, and other objects. It discusses key concepts such as speed being the distance traveled over time. Motion is defined as relative based on the frame of reference. Speed, time, and distance are shown to have a direct relationship through equations. Constant and average speed are also explained.
Longitudinal And Transverse Waves
There are two main types of waves: longitudinal waves and transverse waves. Longitudinal waves involve compression and rarefaction of the transmitting medium, while transverse waves involve oscillation perpendicular to the direction of travel. Polarization is evidence of the transverse nature of waves - polarizers can absorb waves with certain orientations. Many applications make use of the polarized nature of transverse waves, such as sunglasses reducing glare from reflected light and polarizing filters increasing contrast in camera lenses.
7-2. the characteristics of living organism
The document describes the key characteristics of living organisms: movement, eating, breathing, irritability, growth, excretion, and reproduction. It provides examples of how different organisms such as plants, animals, and humans demonstrate each characteristic. The document also compares and contrasts how living and non-living things exhibit these characteristics.
WAVE AND ITS PROPERTIES
The document defines key terms related to waves, including:
- Crest, trough, amplitude, wavelength, frequency, period, wave speed, wavelength, loudness, intensity, quality, and pitch. It also describes transverse waves, where particles vibrate perpendicular to the wave, and longitudinal waves, where particles vibrate parallel to the wave. Reflection and diffraction of waves are also discussed.
Waves
1. Waves can be either longitudinal or transverse, depending on the direction of particle motion relative to the wave propagation.
2. The key parts of a wave include the crest (maximum displacement), trough (minimum displacement), wavelength (distance between two similar points), amplitude (maximum displacement from rest), and frequency (number of waves passing a point per unit time).
3. The speed of a wave can be calculated using the formula: speed = frequency x wavelength.
Physics M5 Types of waves and wave parameters
This document discusses types of waves and wave parameters. It begins by outlining the objectives of identifying types of waves, differentiating between them, and identifying wave parameters and dependencies. It then defines waves and introduces two main types: mechanical and electromagnetic waves. Mechanical waves are further divided into longitudinal waves, where particle motion is parallel to the energy propagation, and transverse waves, where particle motion is perpendicular. Five key wave parameters - amplitude, period, frequency, wavelength, and wave speed - are defined and their relationships explored. Examples of different wave types are provided.
Lesson in physics wave and its properties
1. A longitudinal wave is a wave where the particle motion is parallel to the wave direction, while a transverse wave has particle motion perpendicular to the direction.
2. Refraction occurs when the speed and direction of a wave changes due to changing medium, such as light bending as it passes from air to water.
3. Diffraction is the bending of waves around obstacles, seen with water waves passing objects or light diffracting through slits forming interference patterns like rainbows.
Sim Photosynthesis
- Photosynthesis is a two-stage process where light energy is converted to chemical energy. The light reaction uses light energy to produce ATP and NADPH. The dark reaction uses these products to fix carbon and produce glucose.
- The light reaction takes place in the thylakoids and splits water, producing oxygen and energized electrons. These electrons are used to produce ATP and NADPH.
- The dark reaction occurs in the stroma and uses ATP and NADPH to fix carbon from CO2 into glucose, producing oxygen as a byproduct. This provides the basic energy and materials for plant growth and survival.
Effects of Strategic Intervention Material on the Academic Achievements in Ch...
Chosen as the Best Thesis for Masters Degree batch 2012
Thesis on Effects of Strategic Intervention Material on the Academic Achievements in Chemistry of Public High School
Strategic Intervention Material in Physics IV
Strategic Intervention Material in Refraction of Light, a intervention material in Dona Rosario National High School year 2011
SIM: Matter
Strategic Intervention Material for Sta. rosa elementary school centra III (Special Science elementary school)
Science Intervention materials on science
This document is a science intervention material that discusses the concepts of force and work. It uses pictures, examples, and activities to teach students about different types of forces (contact vs. non-contact), what constitutes work, and how to calculate work using various formulas. The material guides students through examples of determining if a situation involves a contact or non-contact force, identifying whether work is being done in images, and solving word problems to calculate work done. It also includes review questions and activities to help students assess their understanding of these core science concepts.
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEM
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEMSophia Marie Verdeflor
The document provides information about the circulatory system. It explains that the circulatory system is responsible for transporting nutrients, water, oxygen, and waste throughout the body using the heart, blood vessels, and blood. The heart pumps blood through a network of arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart while veins carry deoxygenated blood back to the heart. Capillaries allow for the exchange of gases, water, and nutrients between blood and body tissues. The document also describes the components and functions of the heart and blood in more detail.Science intervention material SCIENCE PHOTOSYNTHESIS
This document is a science intervention material that provides instruction on the concepts of force and work. It uses examples, activities, and problems to teach students about different types of forces (contact vs. non-contact), what qualifies as work being done, and how to calculate work using various formulas. The material guides students through worked examples and encourages them to identify forces and calculate work in different situations. It also includes a game to help students learn related vocabulary words. The overall document aims to build students' understanding of key physics concepts through interactive lessons and practice problems.
Force and motion
Forces and motion are discussed in this document. It defines a force as a push or pull and explains that all motion is due to forces acting on objects. Motion is defined as a change in an object's position over time. Balanced and unbalanced forces are compared, with unbalanced forces being able to cause motion. Common forces like gravity, friction, and air resistance are described. Examples are provided to illustrate key concepts around forces.
Force.Ppt
Force is a push or pull that can cause motion or acceleration. It is measured in Newtons and all forces are interactions between objects. The net force is calculated by adding forces in the same direction and subtracting forces in opposite directions, with an unbalanced net force producing motion.
Strategic Intervention Materials
This document provides an overview and activities on solving quadratic equations by factoring. It begins by defining quadratic equations and their standard form. Several activities are presented to practice identifying quadratic equations, rewriting them in standard form, and factoring trinomials of the form x^2 + bx + c. The final activity involves factoring quadratic equations to determine their roots. The document aims to build mastery of skills needed to solve quadratic equations using factoring techniques.
MOTION Class IX PowerPoint Presentation
1. Motion is defined as a change in position of an object over time relative to its surroundings. An object is said to be at rest if its position does not change over time relative to its surroundings.
2. Motion can be classified as translatory, rotational, or periodic. Translatory motion involves straight-line motion, rotational motion involves motion around a fixed axis, and periodic motion repeats over regular time intervals.
3. Physical quantities can be scalar or vector. Scalar quantities only require magnitude, while vector quantities require both magnitude and direction. Examples of scalars include mass and time, while examples of vectors include velocity and displacement.
Force and Motion Review ppt
This document provides an overview of key concepts related to force and motion, including definitions and formulas. It defines a force as a push or pull and notes they have both size and direction. It explains net forces result from combining multiple forces and discusses balanced and unbalanced forces. Key terms like motion, speed, velocity, acceleration, inertia, and Newton's Three Laws of Motion are defined. Formulas for speed, acceleration, weight, and examples of applications of the three laws are also presented.
Design in motion. The new frontier of interaction design
Animation can explain behaviours better than thousand of words that’s why interaction designer should learn from motion designer.
Technological advances have allowed, in the last few years, a big step forward in the dynamic behaviors and interactions patterns that we used to do with software in the past. Motion is one of the key element of this change but how can we imagine & sketch the way something feels & reacts? Starting from the basic of motion design, we’ll discover a set of “standard” motion patterns and how we can sketch & use them in a design project to increase affordance, to simplify complex interactions and to give a new dynamic brand identity to our products.
Presented @Interaction 14, Amsterdam
http://interaction14.ixda.org/program/saturday/241-design-in-motion-the-new
Talk here:
https://vimeo.com/86763511
Viewers also liked (20)
Effects of Strategic Intervention Material on the Academic Achievements in Ch...
Effects of Strategic Intervention Material on the Academic Achievements in Ch...
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEM
Strategic Intervention Material (SIM) Science-CIRCULATORY AND RESPIRATORY SYSTEM
Science intervention material SCIENCE PHOTOSYNTHESIS
Science intervention material SCIENCE PHOTOSYNTHESIS
Design in motion. The new frontier of interaction design
Design in motion. The new frontier of interaction design
Similar to Learning object 2
Cmpe226_Ch8.ppt
The document discusses various characteristics of alternating current (AC) signals including sine waves, frequency, amplitude, phase, and power calculations. It defines key terms such as period, instantaneous value, peak value, root mean square value, harmonics, and phasors. Equations are provided to calculate the instantaneous voltage of a sine wave at a given angle as well as power dissipated by a resistive AC circuit. [/SUMMARY]
Circular Motion (AIS).ppt
The document discusses circular motion and related concepts such as radians, angular displacement, angular velocity, angular acceleration, centripetal acceleration, and centripetal force. It provides definitions and equations for these terms and concepts, including that centripetal acceleration is directed toward the center of the circular path, and is given by a=v2/r. Centripetal force is the net force providing the centripetal acceleration, and is given by Fc=mv2/r.
Electromagnetic induction
This document discusses electromagnetic induction and how it is used in generators and motors. It begins by explaining how a current is induced in a conductor moving through a magnetic field. It then provides examples of calculating induced emf using Faraday's law and Lenz's law. Finally, it describes how a rotating coil in a magnetic field can be used to generate an alternating current in an electric generator.
Group 7(frequency measurement)
This document describes two methods for measuring frequency: the spot wheel method and the gear wheel method.
The spot wheel method uses a resistance-capacitance phase shifter and CRO to compare two frequencies - a lower frequency is applied to the deflecting plates while a higher frequency is applied to the control grid. The ratio of bright and dark spots indicates the ratio of the high to low frequencies.
The gear wheel method uses a known frequency applied through an RC phase shifter to a CRO to produce a ring pattern. An unknown frequency modulates the ring, creating a toothed pattern where the number of teeth equals the ratio of frequencies. Adjusting the known frequency stops the wheel from rotating, indicating the frequencies
Floyd chap 11 ac fundamentals
This chapter discusses sinusoidal waveforms which are fundamental to alternating current (AC) circuits. Sine waves are characterized by their amplitude and period. The chapter covers definitions of peak, RMS, average values and how to relate period and frequency. It also discusses how sinusoidal voltages are generated and defines concepts like phase shift and phasors which allow analysis of AC circuits using trigonometry. The chapter concludes with an overview of pulse waveforms.
Ac fundamentals
The document discusses sinusoidal waveforms, which are fundamental to alternating current. It defines key characteristics of sine waves such as amplitude, period, frequency, and how they are related. The document also covers how sinusoidal voltages are generated by AC generators and function generators. It describes methods for specifying the voltage value of sine waves, including peak, RMS, average and peak-to-peak values. Finally, it introduces phasors as a way to represent rotating vectors for analyzing AC circuits using trigonometry.
Chapter 1
The document discusses alternating current (AC) and direct current (DC). It defines AC as current that reverses direction periodically and describes its generation from sources like power plants. Key aspects of AC covered include its sinusoidal waveform, frequency, peak and RMS values. Phasors are introduced as a way to represent AC quantities in terms of magnitude and phase. Circuit laws for resistive AC circuits are also mentioned.
A.c circuits
1) Effective current in an AC circuit is 0.707 times the maximum current. Effective voltage is 0.707 times the maximum voltage.
2) Inductive reactance is directly proportional to frequency and inductance. Capacitive reactance is inversely proportional to frequency and capacitance.
3) Impedance is the total opposition to current flow in an AC circuit consisting of resistance and reactance. Power is consumed only by the resistive component of impedance and is proportional to the cosine of the phase angle.
Ac fundamentals 2
This chapter discusses AC fundamentals including sine waves, frequency, period, and phasors. Key points:
1) Sine waves are the fundamental AC waveform characterized by amplitude and period. Sinusoidal voltages are produced by rotating conductors in AC generators.
2) Frequency is the number of cycles per second measured in Hertz. Period and frequency are reciprocals.
3) Phasors are used to represent sine waves and allow AC calculations using trigonometry by treating voltages and currents as vectors rotating at a constant rate.
Ac fundamentals 2
1) Sine waves are the fundamental waveform for alternating current and voltage. They are characterized by amplitude and period.
2) AC generators use a rotating coil in a magnetic field to produce sinusoidal voltages. Increasing the number of poles increases the number of cycles per revolution.
3) There are various ways to specify the voltage or current of a sine wave including peak value, peak-to-peak value, RMS value, and average value.
Galvanmometer
The document discusses a presentation about galvanometers. It introduces the group members giving their names and student IDs. It then states the topic is about galvanometers, discussing their introduction, principle, construction, working, and applications. Galvanometers are electromechanical instruments that detect electric currents through circuits using a sensitive moving coil mechanism. They work on the principle of torque generated by current in a magnetic field, with the coil rotating until restoring and deflecting torques cancel out. Applications mentioned include use as voltmeters to measure voltage in circuits.
Grade 11, U4 L1-Vibrations
1) The document discusses vibrations and waves, defining key terms like amplitude, period, frequency, and phase. It describes the motion of a pendulum and how its frequency is related to its length.
2) Resonance is defined as occurring when energy is added to a vibrating system at the same frequency and phase as the natural frequency, potentially causing a continuous increase in the system's energy over time.
3) Examples of periodic and simple harmonic motion include a pendulum and mass attached to a spring. The document provides links to videos demonstrating resonance and vibration concepts.
Lecture6_Electrical engingveering_AC.pptx
The document discusses alternating current and voltage, specifically sine waves. It covers topics such as:
- The sinusoidal waveform and how it is produced
- Defining characteristics of sine waves like period, frequency, polarity, and phase
- Different methods for expressing the voltage and current values of sine waves such as peak, RMS, average, etc.
- How alternating current is delivered using single and three-phase power systems
- Star and delta connections for three-phase systems
Alternating Current(AC) presentation
this contant is physics related.Here AC current explain on the purpose of presentation with some equation and circuit diagram.i thaink it wiil be very effective for the students.
Electrical Machines Notes 3 (Mechanical Work Done in a Singly excited system ...
1) The document discusses mechanical work done in singly and doubly excited magnetic systems.
2) In a singly excited system, mechanical work done equals the reduction in magnetic energy stored. In a doubly excited system, torque depends on instantaneous currents and rate of change of inductance.
3) The generated EMF in a machine is derived. The flux linkage of a coil moving in a "B-wave" is calculated, showing that the induced EMF is proportional to the rate of change of flux linkage.
AC Circuits.pdf
This document provides an overview of alternating current (AC) circuits. It defines key concepts like effective current and voltage, and describes the phase relationships between voltage and current in circuits containing resistance, capacitance, and inductance. Equations are given for calculating inductive and capacitive reactance. Transformers are also briefly discussed. The objectives are to understand and apply equations for various AC circuit parameters like impedance and resonant frequency.
9780750687478.pdf
This chapter discusses a.c. circuits containing resistors, inductors, and capacitors connected in series. It introduces the concepts of reactance and impedance to analyze simple a.c. series circuits. The key learning outcomes are to understand phasor and waveform diagrams for resistance, inductance, and capacitance, and analyze circuits using impedance and power triangles. The chapter also covers power dissipation calculations and introduces the concept of series resonance.
AC circuit
This document provides an overview of alternating current (AC) circuits, including definitions of key terms like frequency, cycle, time period, and sine waves. It describes various AC circuit components like resistors, inductors, and capacitors. It discusses AC circuits where these components are connected in series and parallel, such as R-L series, R-C series, and R-L-C parallel circuits. The document compares the characteristics of R-C series versus R-C parallel circuits and series versus parallel circuits in general.
The normal ecg and the 12
The document provides a detailed overview of electrocardiography including:
- The basic components of an ECG waveform and what each component represents in terms of electrical activity in the heart.
- How the 12-lead ECG system works and the placement of electrodes.
- Normal ECG measurements and appearances in both limb and precordial leads.
- How the electrical impulse is conducted through the heart and the normal rhythm.
- A systematic approach for interpreting ECGs including measurements of heart rate, PR interval, QRS duration and corrected QT interval.
Similar to Learning object 2 (20)
Electrical Machines Notes 3 (Mechanical Work Done in a Singly excited system ...
Electrical Machines Notes 3 (Mechanical Work Done in a Singly excited system ...
Recently uploaded
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdHow to Make a Field Mandatory in Odoo 17
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...Nguyen Thanh Tu Collection
https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneHow to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience Wahiba Chair Training & Consulting
Wahiba Chair's Talk at the 2024 Learning Ideas Conference. Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Solutons Maths Escape Room Spatial .pptx
Solutions of Puzzles of Mathematics Escape Room Game in Spatial.io
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Recently uploaded (20)
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
Learning object 2
- 1. Reflection and Transmission of Mechanical Waves demoweb.physics.ucla.edu
- 2. True/False Question When a pulse is reflected from a fixed end it is not inverted: TRUE FALSE
- 3. CORRECT! When a pulse is reflected from a fixed end it is inverted! As the pulse reaches the end, the string exerts an upward force on the rigid support and the rigid support exerts an equal and opposite force on the string http://astarmathsandphysics.com/a-level-physics-notes/waves-and-oscillations/a-level-physics-notes-reflection-of-waves-html- m5bffd405.gif
- 4. INCORRECT :( When a pulse is reflected from a fixed end it is inverted! As the pulse reaches the end, the string exerts an upward force on the rigid support and the rigid support exerts an equal and opposite force on the string http://astarmathsandphysics.com/a-level-physics-notes/waves-and-oscillations/a-level-physics-notes-reflection-of-waves-html- m5bffd405.gif
- 5. True/False Question The reflected pulse is inverted. TRUE FALSE
- 6. CORRECT! The reflected pulse is inverted. The blue string serves as a fixed end and thus the reflected pulse is inverted. http://www.physicsclassroom.com/Class/waves/u10l3a6.gif
- 7. INCORRECT :( The reflected pulse is inverted. The blue string serves as a fixed end and thus the reflected pulse is inverted. http://www.physicsclassroom.com/Class/waves/u10l3a6.gif
- 8. True/False Question The transmitted pulse is inverted and the reflected pulse is not inverted. TRUE FALSE
- 9. CORRECT! Both the transmitted pulse and the reflected pulse are not inverted. The red string serves as a free end and thus, the reflected pulse is not inverted. http://www.physicsclassroom.com/Class/waves/u10l3a7.gif
- 10. INCORRECT :( Both the transmitted pulse and the reflected pulse are not inverted. The red string serves as a free end and thus, the reflected pulse is not inverted. http://www.physicsclassroom.com/Class/waves/u10l3a7.gif
- 11. Question How did the pulse look like before it was reflected?
- 12. CORRECT! This is a fixed end so the pulse is inverted.
- 13. INCORRECT :( This is a fixed end so the pulse is inverted.
- 14. True/False Question Match the incident pulse with the correct reflected pulse (free end). A B C D http://dev.physicslab.org/Document.aspx?doctype=5&filename=WavesSound_FixedFreeReflections.xml
- 15. CORRECT! The pulse is not inverted because it is a free end.
- 16. INCORRECT :( The pulse is not inverted because it is a free end.
- 17. Important Concepts Fixed end -> pulse is inverted Free end -> pulse is not inverted When pulse is traveling to a different string which is more dense, the pulse is inverted When pulse is traveling to a different string which is less dense, the pulse is not inverted