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# Energy Vocab

### Energy Vocab Cards Question and Answer By: Jake Pettit

Wave A disturbance that transfers energy
Medium The material - Solid, liquid, or gas - through which a wave can travel
Transverse wave In a transverse wave, particles move perpendicular to the direction the wave travels
Crest The point were the wave is at its highset
Trough The lowest point in a wave
Longitudinal Wave Particles move back and forth in the same direction that the wave travels.
Compression When a longitudinal wave closes in on itself
Rarefaction When a longitudinal wave spreads apart
Mechanical Waves Waves that require a medum
Electromagnetic Waves Waves that do not disturb a physical medium
Amplitudes How far particles move in the medium from their rest position.
Wavelength The distance from any point to the next identical point in the same wave
Frequency The number of waves that pass through a point in a given amount of time
Wave speed The speed that waves travel
Hertz (Hz) A unit of measurement used to measure frequency
Force A push or pull exerted on an object
Work The use of force used to move an object some distance
Power The rate of work that is being done
Joe pushes a box with 50 N of force for 50 meters how much work does he do? 2500 N
Chuck pulls a wagon with 2500 N of force for 50 seconds how much power did he use? 50 Joules
What is the formula for work? Work = Force x Distance
What is the formula for power? Power = Work / Time
What is the formula for wave speed? Wave Speed = Distance / Time
A wave traveled 50 meters in 2.5 seconds. What is its speed? 20 Hertz
What is the highest point in a wave? Crest
What does a sound wave travel best through? Gas, solid, or liquid. Solid
Created by: 322672