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

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

WAVE MOTION WAVES

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

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)

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

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

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

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)

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

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

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.

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)

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

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

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

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