Sound is produced by vibrations that travel through a medium as sound waves, which can be transverse or longitudinal. In humans, sound is produced by vibrations of the vocal cords causing fluctuations in air pressure that move as sound waves. These waves travel to the ear where they cause the eardrum and bones to vibrate, transmitting the sound signals to the brain. [/SUMMARY]
SOUND
MUSICAL INSTRUMENT
PROPAGATION OF SOUND
PRODUCTION OF SOUND MUSICAL INSTRUMENTS
SPEED OF A SOUND
WOODWINDS INSTRUMENTS
String INSTRUMENTS
Percussion INSTRUMENTS
Brass INSTRUMENTS
SOUND PRODUCED BY HUMANS
SPEED OF LIGHT V/S SOUND
SOUND PRODUCED BY ANIMAL
VIBRATION & OSCILLATION
LOUDNESS AND PITCH OF SOUND
HUMAN EARS
PERSISTENCE OF HEARING
Echo & REVERBERATION
AUDIBLE AND INAUDIBLE SOUND
NOISE AND MUSICAL SOUND
Noise pollution
HEARING IMPAIRMENT
SIGN LANGUAGE
Reflection of sound
Uses of multiple reflection of sound
SONAR
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
SOUND
MUSICAL INSTRUMENT
PROPAGATION OF SOUND
PRODUCTION OF SOUND MUSICAL INSTRUMENTS
SPEED OF A SOUND
WOODWINDS INSTRUMENTS
String INSTRUMENTS
Percussion INSTRUMENTS
Brass INSTRUMENTS
SOUND PRODUCED BY HUMANS
SPEED OF LIGHT V/S SOUND
SOUND PRODUCED BY ANIMAL
VIBRATION & OSCILLATION
LOUDNESS AND PITCH OF SOUND
HUMAN EARS
PERSISTENCE OF HEARING
Echo & REVERBERATION
AUDIBLE AND INAUDIBLE SOUND
NOISE AND MUSICAL SOUND
Noise pollution
HEARING IMPAIRMENT
SIGN LANGUAGE
Reflection of sound
Uses of multiple reflection of sound
SONAR
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
1. Define Refraction Of Light
2. Discussion on Examples Of Refraction
3. Describe the action of CONVEX and CONCAVE mirror
4. Define the terms related to SPHERICAL mirrors
5. Describes the rules for making ray diagrams for SPHERICAL mirror
6. Distinguish between REAL and VIRTUAL image
7. Image formation using CONCAVE and CONVEX mirror.
8. Refraction Prisms: Dispersion Of Light
9. Uses Of CONCAVE and CONVEX mirror
Chapter - 6, Combustion and Flame, Science, Class 8Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 6, Combustion and Flame, Science, Class 8
INTRODUCTION
COMBUSTION AND TYPES
IGNITION TEMPERATURE
INFLAMMABLE SUBSTANCE
SOURCES OF SOLAR ENERGY
TYPES OF COMBUSTION
FIRE EXTINGUISHER
FLAME
FUEL AND ITS TYPES
FUEL EFFICIENCY
GLOBAL WARMING
ACID RAIN
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
COMBUSTION AND FLAME PPT- SHORT NOTES/CLASS8/SCIENCE/CHEMISTRYRidhima Wahi
This is a PPT on the chapter- Combustion and Flame, of class 8.
The PowerPoint presentation will help you get an outline of the chapter, and also help create short notes (for revision)
I hope that would be something of your benefit. :)
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 13, Sound, Science, Class 8
WHAT IS SOUND?
INTRODUCTION TO SOUND
SOUND-PRODUCING MUSICAL INSTRUMENTS
SOUND PROPERTIES
HOW DO HUMANS PRODUCE SOUND?
HOW SOUND PROPAGATE IN A MEDIUM?
SOUNDS BY HUMANS
THERE ARE THREE MAJOR PARTS OF THE HUMAN EAR
AMPLITUDE, TIME PERIOD, AND FREQUENCY
THE LOUDNESS OF A SOUND
PITCH OF THE SOUND
AUDIBLE AND INAUDIBLE SOUNDS
NOISE AND MUSIC
NOISE POLLUTION
CAUSES OF NOISE POLLUTION
EFFECTS OF NOISE POLLUTION
PREVENTION OF NOISE POLLUTION
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
It is a very useful ppt for studying students .I have made with very much hard work it will surely help you. I have made it with an attractive way and do not trust on me ,first see and you sill yourself like it.
1. Define Refraction Of Light
2. Discussion on Examples Of Refraction
3. Describe the action of CONVEX and CONCAVE mirror
4. Define the terms related to SPHERICAL mirrors
5. Describes the rules for making ray diagrams for SPHERICAL mirror
6. Distinguish between REAL and VIRTUAL image
7. Image formation using CONCAVE and CONVEX mirror.
8. Refraction Prisms: Dispersion Of Light
9. Uses Of CONCAVE and CONVEX mirror
Chapter - 6, Combustion and Flame, Science, Class 8Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 6, Combustion and Flame, Science, Class 8
INTRODUCTION
COMBUSTION AND TYPES
IGNITION TEMPERATURE
INFLAMMABLE SUBSTANCE
SOURCES OF SOLAR ENERGY
TYPES OF COMBUSTION
FIRE EXTINGUISHER
FLAME
FUEL AND ITS TYPES
FUEL EFFICIENCY
GLOBAL WARMING
ACID RAIN
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
COMBUSTION AND FLAME PPT- SHORT NOTES/CLASS8/SCIENCE/CHEMISTRYRidhima Wahi
This is a PPT on the chapter- Combustion and Flame, of class 8.
The PowerPoint presentation will help you get an outline of the chapter, and also help create short notes (for revision)
I hope that would be something of your benefit. :)
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 13, Sound, Science, Class 8
WHAT IS SOUND?
INTRODUCTION TO SOUND
SOUND-PRODUCING MUSICAL INSTRUMENTS
SOUND PROPERTIES
HOW DO HUMANS PRODUCE SOUND?
HOW SOUND PROPAGATE IN A MEDIUM?
SOUNDS BY HUMANS
THERE ARE THREE MAJOR PARTS OF THE HUMAN EAR
AMPLITUDE, TIME PERIOD, AND FREQUENCY
THE LOUDNESS OF A SOUND
PITCH OF THE SOUND
AUDIBLE AND INAUDIBLE SOUNDS
NOISE AND MUSIC
NOISE POLLUTION
CAUSES OF NOISE POLLUTION
EFFECTS OF NOISE POLLUTION
PREVENTION OF NOISE POLLUTION
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
It is a very useful ppt for studying students .I have made with very much hard work it will surely help you. I have made it with an attractive way and do not trust on me ,first see and you sill yourself like it.
a ppt on sound
includes- what is sound
production of sound
propagation of sound
characteristics of sound
reflection of sound
applications of reflection of sound
range of frequencies
ultrasound and its 8 usages
hope it helpful :D
This presentation is about the introduction and characteristics of sound. Including the subtopic on the Pressure and Intensity of sound waves, Pitch, Resonance effect in sound systems, and Helmholtz resonator, Reflection and diffraction of sound waves. In this presentation you will know and understand how sound is created and why sound needs a medium in order to be recognized by someone (animals or human). The uses of different sound wave frequency in different field of study.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2. WHAT IS
SOUND?
Sound is the term to describe what is heard when
sound waves pass through a medium to the ear. All
sounds are made by vibrations of molecules through
which the sound travels. For instance, when
a drum or a cymbal is struck, the object vibrates.
These vibrations make air molecules move. Sound
waves move away from their sound source (where
they came from), traveling on the air molecules.
When the vibrating air molecules reach our ears,
the eardrum vibrates, too. The bones of the ear
vibrate in the same way that of the object that
started the sound wave.
3. WHAT ARE WAVES?
A wave is a disturbance of one or more fields such that the field values oscillate repeatedly about a stable equilibrium value. If
the relative amplitude of oscillation at different points in the field remains constant, the wave is said to be a standing wave.
Mechanical waves are waves that travel through a material medium.
It is of two types: depending on the direction of motion of the particle of the medium and the wave propagation:
*transverse
*longitudinal
4. TRANSVERSE
A transverse wave is a
moving wave that is made up
of oscillations happening
perpendicular to the direction
of energy transfer. It can also
mean that it is a wave that
causes the medium to vibrate
amazingly at right angles
perpendicular to the direction
in which they travel parallel to
each other.
5. LONGITUDINAL
A longitudinal wave is
a wave in which the particle
movement is parallel to the
direction of
the wave propagation.
This means that the particles
move left and right which in
turn makes the other particles
start to oscillate.
... Longitudinal waves are also
called pressure waves, and
sound waves are the most
common kinds.
6. HOW SOUND
IS PRODUCES
BY HUMANS?
In humans, the sound is
produced by the voice
box or the larynx. The
voice box is at the upper
end of the wind pipe.
Two vocal cords are
stretched across the
voice box (or larynx) in
such a way that it leaves
a narrow slit between
them. Air passes through
this slit. When air from
the lungs is forced out
through the slit, the
vocal cords vibrate to
produce sound.
7. HOW DO STRING TELEPHONE WORK?
Whenyou speakintothecup,thebackof thecupvibrates;thevibrationextendsintothe string,likea pushona
slinky;thesoundwaves,or vibrations, movethroughthe string.
8. HUMAN EAR
Outer ear = pinna: collects sound from the surroundings.
Sound passes through a tube called an auditory canal.
Eardrum (tympanic membrane) → vibrates when the sound incident.
Vibrations are sent to the inner ear, from there it goes to the brain as signals via the auditory
nerve.
9. AMPLITUDE,TIME PERIOD
AND FREQUENCY
Thenumberof oscillationspersecondiscalledthefrequencyof oscillation.
Frequencyisexpressedinhertz. ItssymbolisHz.A frequencyof 1 Hzisone
oscillationpersecond.If anobjectoscillates20 timesinonesecond,what
wouldbe itsfrequency?Youcanrecognisemanyfamiliarsoundswithout
seeingtheobjectsproducingthem.Howisit possible?Thesesoundsmustbe
differentto enableyouto recognisethem.Haveyou everthoughtwhatfactors
makethemdifferent?Amplitudeandfrequencyaretwoimportantproperties
of anysound.
10. AMPLITUDE,TIME PERIOD AND FREQUENCY OF VIBRATION
The maximum distance to which the bob of a vibrating pendulum goes from its central position is
called amplitude of vibration or amplitude of oscillation
The maximum displacement of a vibrating object from its Central position is called the amplitude of
vibration.
The time taken by pendulum bob to complete one vibration or one oscillation is called the time period
of pendulum.
The time taken by a vibrating object to complete one vibration is called its time period.
The number of vibrations or oscillations made in one second is called the frequency of vibration.
The unit of frequency of vibration or oscillation of a vibrating object is hertz.
11.
12. LOUDNESS AND PITCH
Volume or loudness of a sound depends on the amplitude. The force with which an object is
made to vibrate gives the loudness.
The number of oscillations per unit time. Directly proportional to frequency.
15. WHAT IS NOISE POLLUTION?
Noise pollution, also known as environmental noise or sound
pollution, is the propagation of noise with harmful impact on
the activity of human or animal life. The source of outdoor
noise worldwide is mainly caused by machines, transport,
and propagation systems. Noise pollution can cause health
problems for people and wildlife, both on land and in the sea.
From traffic noise to rock concerts, loud or inescapable
sounds can cause hearing loss, stress, and high blood
pressure. Noise from ships and human activities in the ocean
is harmful to whales and dolphins that depend on
echolocation to survive.
16. HOW TO REDUSE
NOISE
POLLUTION?
Turn off Appliances at Home and offices
Shut the Door when using noisy Machines
Use Earplugs
Lower the volume
Stay away from Noisy area
Follow the Limits of Noise level
Control Noise level near sensitive areas
Go Green by planning trees