17 3 Behavior Of Waves
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Reflection occurs when a wave bounces off a surface it cannot pass through and does not change the wave's speed or frequency but may flip it upside down. Refraction is the bending of a wave as it enters a new medium and occurs because the wave speed changes, with one side moving slower. Diffraction causes a wave to bend around obstacles, with larger wavelengths diffracting more. Interference results from waves combining constructively to make a larger displacement or destructively to make a smaller one. A standing wave appears stationary and has nodes of no displacement and antinodes halfway between nodes.
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Okay, here are the steps:
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Waves carry energy from one place to another through a medium. There are two main types of waves: transverse waves, where the disturbance is perpendicular to the direction of travel, and longitudinal waves, where the disturbance is parallel. Properties of waves include amplitude, wavelength, frequency, wave speed, reflection, refraction, interference, diffraction, constructive interference where crests reinforce each other and destructive interference where crests cancel out troughs. Standing waves appear stationary but are the result of waves traveling in both directions.
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This document provides information about waves and wave phenomena. It discusses the key characteristics of waves like frequency, wavelength, amplitude, and speed. It explains different types of waves including transverse, longitudinal, and standing waves. The document also covers wave behavior at boundaries, interference, reflection, the Doppler effect, and more. Concepts are defined and illustrated with diagrams. The document is intended as a comprehensive reference on the physics of waves and wave motion.
SPS9c_Wave_Interactions_Carter_2022.pptx
The interactions occur when waves pass from one medium to another. The types of interactions are reflection, refraction, and diffraction. An echo is an example of wave reflection. Refraction is when waves bend as they enter a new medium at an angle
CHARACTERISTIC-OF-WAVES-AND-WAVE-VELOCITY.pptx
The document discusses various properties and behaviors of waves, including reflection, refraction, interference, and key wave measurements like amplitude, wavelength, frequency, and period. When waves encounter a boundary or change in medium, some of the wave's energy is reflected, changing the wave's direction. Refraction occurs when waves bend upon entering a new medium at an angle. Interference is the addition or cancellation of waves depending on whether they are in or out of phase. Important wave measurements include amplitude, wavelength, frequency, and period.
1.3
Waves behave predictably and interact with materials in several ways. Waves reflect when hitting a barrier by bouncing back, refract by bending when entering a new medium at an angle, diffract by spreading out through openings or around obstacles, and interfere by either constructively adding to make larger waves or destructively canceling each other out. The document discusses key wave behaviors like reflection, refraction, diffraction, and interference and provides examples of each.
interference_reflection_refraction_diffraction.pptx
Diffraction
The photograph clearly shows circular wavefronts spreading out from a small opening between two barriers. This is a classic example of diffraction, where a wave's propagation is altered as it passes by an obstruction or opening.
Ocean Waves.ppt
1. A surface wave is an oscillating disturbance that moves across the sea surface without transferring mass.
2. Key wave parameters include crest, trough, wavelength, wave height, amplitude, wave period, and frequency.
3. Wave energy is directly proportional to the square of the wave height and depends on water density and gravity. Significant wave height refers to the average height of the largest third of waves.
Wave behaviour
Reflection occurs when waves strike an impervious barrier at the same angle they struck it. Refraction causes waves to bend towards the normal when entering shallower water and away from the normal in deeper water. Diffraction causes waves to radiate and not travel in a straight line when passing through a gap equal to their wavelength.
Wave motion
Wave motion transfers energy from one place to another. There are two main types of waves: transverse waves where particles oscillate perpendicular to the wave direction, and longitudinal waves where particles oscillate parallel to the wave direction. Key wave properties include amplitude, wavelength, frequency, and phase. Waves can undergo various interactions including reflection, refraction, diffraction, interference, and superposition. Interference of waves leads to constructive and destructive interference patterns. Standing waves occur due to interference of waves traveling in opposite directions.
Unit 30 Wave Properties
Waves are disturbances that transfer energy through a medium such as water, air, or solids. There are three main types of mechanical waves: surface waves, which travel along the surface between two media; longitudinal waves, which compress and expand the medium; and transverse waves, where the medium moves at right angles to the wave. Key wave properties include frequency, wavelength, amplitude, speed, reflection, refraction, interference, and diffraction.
Waves
Waves transfer energy through a medium without transferring matter. There are two main types of waves: transverse waves, where the medium's particles move perpendicular to the wave's direction; and longitudinal waves, where particles move parallel. Characteristics like wavelength, frequency, amplitude, and speed define a wave's properties. Energy is transferred through reflections, where waves bounce back at the same angle they arrive. Reflections can be partial or total, depending on the boundary material.
PROPERTIES_OF_WAVES.pptxihbgbgybihkgbyhhhhb
Waves can be described in terms of their speed, amplitude, wavelength, frequency, and period. Transverse waves move perpendicular to their direction of propagation, while longitudinal waves move parallel. Wave speed depends on the medium, and waves can change speed and wavelength at material boundaries due to refraction. Reflection occurs when waves bounce off barriers, obeying the law of equal angles. Diffraction is the spreading of waves when passing through openings, with greater diffraction for larger wavelengths.
Wave
Waves are vibrations that propagate through a medium, carrying energy from one place to another. Periodic waves repeat in a regular pattern with a continuous disturbance. Key wave terminology includes the crest, trough, amplitude, wavelength, frequency, period, and velocity. Waves can be mechanical (requiring a medium) or electromagnetic (not requiring a medium). Mechanical waves include transverse waves (perpendicular to propagation) like water waves, and longitudinal waves (parallel to propagation) like sound waves. Common wave characteristics are reflection at boundaries, refraction due to changes in medium, diffraction around obstacles, interference of multiple waves, dispersion into wavelengths, and polarization of transverse vibrations.
Introduction to Waves Notes2.pptx
This document discusses waves and their characteristics. It begins by defining a wave as a disturbance that transfers energy through matter or space without transferring matter. It then discusses various wave characteristics including amplitude, wavelength, frequency, speed, period, and phase. Examples are provided to demonstrate calculating wave speed from frequency and wavelength. Different types of waves are introduced, such as transverse waves and longitudinal waves. The document concludes by discussing topics like wave interference, standing waves, and the definition of nodes and antinodes.
wavesppt-140413221820-phpapp01.pdf
This document defines waves and classifies them according to the medium they travel through and the particle motion within the medium. Waves are vibrations that transfer energy through a medium without transferring matter. They are classified as electromagnetic waves, which can travel through empty space, and mechanical waves, which require a medium. Mechanical waves are further divided into transverse waves, where particles move perpendicular to the wave, and longitudinal waves, where particles move parallel. The document also discusses key wave properties and behaviors such as reflection, refraction, diffraction, interference, polarization, and resonance.
Diffraction Polines.pdf erwewrd..d,dm,mfmfmf
Diffraction is the bending and spreading of waves around obstacles or through openings. It occurs for all types of waves including light, water, and sound waves. The amount of diffraction increases with wavelength and decreases with aperture size. Huygens' principle and the Huygens-Fresnel principle describe how each point on a wavefront can be seen as a secondary source of waves, helping to explain diffraction. Practical examples of diffraction include interference patterns from double slits and its role in technologies like communication systems and medical imaging.
Diffraction Polines.pdf erwewrd..d,dm,mfmfmf
Diffraction is the bending and spreading of waves around obstacles or through openings. It occurs for all types of waves including light, water, and sound waves. The amount of diffraction increases with wavelength and decreases with aperture size. Huygens' principle and the Huygens-Fresnel principle describe how each point on a wavefront can be seen as a secondary source of waves, helping to explain diffraction. Practical examples of diffraction include interference patterns from double slits and its role in technologies like communication systems and medical imaging.
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interference_reflection_refraction_diffraction.pptx
interference_reflection_refraction_diffraction.pptx
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24 1 the atmosphere
The atmosphere is composed primarily of nitrogen, oxygen, and other gases that surround the Earth. It protects the Earth from harmful rays from the sun while trapping heat, and provides conditions suitable for life. The atmosphere consists of four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - with decreasing air pressure and density at higher altitudes. The stratosphere contains the ozone layer which absorbs UV rays.
Ch 18 5 sources of light
There are several sources of light described in the document. Incandescent light bulbs produce light as electrons flow through a heated filament. Fluorescent lights emit light by causing a phosphor to emit photons through a series of collisions that change wavelengths into visible light. Laser light is a beam of coherent light emitted when excited atoms release photons; it maintains a constant intensity. Sodium-vapor lights ionize gas mixtures in a bulb, causing sodium to emit light as electrons move between energy levels upon heating.
Ch 18 4 colors
White light separates into colors when passing through a prism due to different wavelengths refracting at different angles, called dispersion. An object's color depends on both its composition and the color of light illuminating it. Primary colors are red, green, and blue, which when mixed in different amounts can create all other colors. Secondary colors are cyan, yellow, and magenta, which are combinations of two primary colors. Complimentary colors of light combine to form white light. Primary pigment colors are cyan, yellow, and magenta.
Ch 18 2 electromagnetic spectrum
The electromagnetic spectrum includes various types of waves ranging from radio waves to gamma rays. Radio waves are used for radio, television, radar, and microwaves, which can be used to cook food. The electromagnetic spectrum also includes infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays, each with their own characteristics and applications such as medicine, agriculture, imaging internal structures, and cancer treatment.
Ch 18 1 electromagnetic waves
Electromagnetic waves consist of changing electric and magnetic fields that can travel through matter or empty space, transferring energy. They are produced when electric charges vibrate or accelerate and all travel at the same speed in a vacuum, as measured by Michelson. While wavelength and frequency vary inversely, electromagnetic radiation behaves both as waves and particles, with intensity decreasing with distance from the source as photons disperse.
15.1 notes
The document discusses different forms of energy including kinetic energy, which depends on an object's mass and speed, and potential energy, which can be gravitational or elastic. It provides examples of calculating kinetic energy for a flying bird and gravitational potential energy for a diver. The document also categorizes the main forms of energy as mechanical, thermal, chemical, electrical, electromagnetic, and nuclear, and notes that nuclear power plants use nuclear energy to generate electricity by splitting atoms to heat water and spin turbines.
11 3 acceleration section
Acceleration is defined as a change in an object's speed or direction over a period of time. It can be calculated by taking the change in velocity (final velocity minus initial velocity) divided by the time taken. Acceleration is measured in meters per second squared. Slowing down is considered deceleration or negative acceleration. Constant acceleration results in a steady change in velocity at the same rate over time and is represented by a straight line on a graph where the slope equals the acceleration.
3.1 notes
The document discusses the differences between solids, liquids, and gases. Solids have a definite shape and volume, do not compress, and do not assume the shape of their container. Liquids have no definite shape but a definite volume, cannot be compressed, and assume the shape of their container. Gases have no definite shape or volume, can be compressed, and assume the shape of their container. The kinetic theory states that particles in all matter are in constant motion and the behavior of gases is due to the fast, random motion of particles which overcome attractive forces between them.
2.2 notes
Physical properties are characteristics that can be observed or measured without changing a substance's composition, and include viscosity, conductivity, malleability, hardness, melting point, boiling point, and density. These properties can be used to identify materials, determine which are best for specific uses, and separate mixtures through processes like filtration and distillation.
2.1 notes
This document classifies matter as either pure substances or mixtures. Pure substances are uniform throughout and can be elements, which contain only one type of atom, or compounds, which contain two or more elements joined together. Mixtures are not uniform and can be either heterogeneous, with noticeably different parts, or homogeneous, with evenly distributed parts. Mixtures are further classified as solutions, suspensions, or colloids based on the size of particles in the mixture.
2.2 notes
Physical properties are characteristics that can be observed or measured without changing the composition of a substance. Some key physical properties include viscosity, conductivity, malleability, hardness, melting point, boiling point, and density. Physical properties can be used to identify materials, determine which are best suited for specific uses, and separate mixtures using techniques like filtration and distillation.
1.2 notes
The document outlines the scientific method which involves making observations, conducting research to form a hypothesis, testing the hypothesis through controlled experiments and data collection, drawing a conclusion, and potentially developing a new theory. It also discusses key aspects of the scientific method including forming testable hypotheses with manipulated and responding variables, controlling outside factors, revising hypotheses not supported by evidence, and how scientific laws summarize patterns in nature while theories aim to explain them. Scientific models are also mentioned as tools to visualize complex concepts.
How to make a good graph
To make a good graph, include a title, labels for the axes, and consistent scales. The x-axis should include the independent variable like time, while the y-axis includes the dependent variable measured. Data points can be connected with a smooth curve to show patterns, and less ink allows easier readability. Key details like calculations or uncertainties should be indicated on the graph as needed.
1.4 notes
Scientists use various visual formats like tables, line graphs, bar graphs, and circle graphs to organize and present data. Tables relate variables and display values in rows and columns. Line graphs show changes over time or between variables with slope indicating relationships. Bar graphs compare measurements, while circle graphs illustrate proportions of a whole.
1.3 notes
Scientific notation and SI units are used in measurement to help scientists communicate measurements clearly across countries. The basic SI units include meters, kilograms, seconds, amperes, moles, candelas, and kelvins. Derived units are calculated from the basic units, such as newtons from kilograms and meters/seconds. SI prefixes modify the scale of units, from centi to giga. The precision of calculations is limited by the measurement with the fewest significant figures. Temperature in kelvins is calculated by adding 273 to degrees Celsius.
1.2 notes
The document outlines the scientific method which involves making observations, conducting research to form a hypothesis, testing the hypothesis through controlled experiments and data collection, drawing a conclusion, and potentially developing a new theory. It also discusses key aspects of the scientific method including forming testable hypotheses with manipulated and responding variables, controlling outside factors, revising hypotheses not supported by evidence, and how scientific laws summarize patterns in nature while theories aim to explain them and cannot be proven. Scientific models are also mentioned as helping visualize complex concepts.
Ch 1 1 notes
Science begins with curiosity and uses methods to discover knowledge. It includes natural sciences like physical science, chemistry, physics, earth and space science, as well as life sciences concerning living things. Physical science covers big ideas like space and time, matter and change, forces and motion, and energy.
Ch 26-1 The sun
The document summarizes key aspects of energy from the sun and its atmospheric features. The sun's energy comes from nuclear fusion reactions in its core that convert hydrogen into helium. This outward pressure is balanced by the sun's inward gravitational force, maintaining stability. The sun's atmosphere has three layers - the visible photosphere, the middle chromosphere, and the outer corona containing hot gases that flow out as solar winds. Sunspots, prominences, and solar flares are prominent atmospheric features.
Groups of stars 26.4
Star systems consist of two or more stars held together by gravity, with over half of all stars existing in systems. Star clusters form when stars are born together in the same nebula, allowing their ages to be determined. The three types of star clusters are open clusters, associations, and globular clusters. Galaxies are classified into four main categories: spiral, barred-spiral, elliptical, and irregular galaxies, which can be distinguished by their shapes, presence of spiral arms, and stages of star formation.
Evolution of a star 26 3
Stars form from dense regions in nebulae where dust and gases heat up and contract to form a protostar with enough mass for nuclear fusion to begin. Most stars will spend around 90% of their life as a main sequence star stably fusing hydrogen into helium. A star's mass determines its place on the main sequence, with smaller, cooler red stars living the longest. Lower mass stars eventually become white dwarfs as their cores grow without outward pressure, while higher mass stars explode as supernovae, leaving behind neutron stars or black holes if the core is massive enough for its surface gravity to trap even light.
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17 3 Behavior Of Waves
- 1. Behavior of Waves How Does Reflection Change a Wave? What Causes the Refraction of a Wave When It Enters a New Medium? What Factor Affects the Amount of Diffraction of a Wave? What Are Two Type of Interference? What Wavelengths Will Produce a Standing Wave?