1. Abasaheb Kakade Art’s & Science College Bodhegaon
Tal- Shevgaon Dist- Ahmednagar

2. REPRESENTED BY
Assi.prof.Dehadray M.M
Department of Physics

3. WAVE MOTION
WAVES

4. What is energy? Energy is the ability to move or cause change in matter.
Potential- when matter has stored energy that is ready to be used but is not being used.
There are two types of energy, kinetic and potential, and it comes in many forms:
Kinetic-the release of potential energy; matter in motion
Sound- kinetic
Thermal-kinetic
Chemical-potential
Electrical- kinetic
Radiant/ Light-kinetic
Mechanical- kinetic

5. Waves have energy but what is a wave?
A wave is the ability to move or cause change in matter.
What is a wave?
A disturbance that transfers energy. Some types of waves require a medium (solid, liquid, or gas) to travel through while others do not.
A medium is a substance or material that carries a wave (solid, liquid, gas)

6. Different types of waves:
Mechanical Wave
Electromagnetic Wave
Transverse Wave
Longitudinal Wave

7. What is a medium?
A medium is a substance or material that carries a wave (solid, liquid, gas)

8. Mechanical v/s Electromagnetic Waves
Mechanical Waves
travel through matter
Sound waves
water waves
Electromagnetic Waves
travel through empty space, as well as through matter
Visible light,
microwaves,
X-rays, and
radio waves

9. Mechanical Wave Require a type of matter to travel through
Medium- (solid, liquid, gas)
These waves pass on energy
Waves can create sound
Sound can travel through air, water, or solids
Can not travel through a vacuum( no air)

10. Electromagnetic Wave Waves that can travel through a vacuum
Empty Space
They do not need a medium or matter
Examples:
Light wave
Radio waves
X-rays

11. Transverse Wave
The wave is moving left to right, while the disturbance moves up and down
The disturbance moves perpendicular to the direction of the wave
Transverse waves create light

12. What is a crest? The peak, or highest point of a transverse wave.
What is a trough?
The valley, or lowest point, of a transverse wave.

13. What is a wavelength?
The distance from any point on one wave to a corresponding point on an adjacent wave. (ex. Crest to crest or trough to trough)

14. What is frequency?
The number of oscillations produced in a certain amount of time. The greater the number of oscillations per second, the higher the frequency. The higher the frequency, the more energy carried by the wave.
High Energy
Low Energy

15. Transverse v/s Longitudinal Wave
Transverse waves produce light Longitudinal waves produce sound

16. Compressional/Longitudinal Wave
The disturbance moves in the same direction as the wave
These waves create sound
Examples:
Sound waves
Waves moving through a stretched out slinky or spring

17. Rarefaction- the part of the wave that is moving apart Compression- is a squeezing together of something; the part of the a sound wave in which air is pushed together