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Waves work and power
Term | Definition |
---|---|
Wave | Waves are caused by vibrations of a Medium. |
Medium | The material (solid, liquid, gas) through which a wave can travel. |
Transverse Wave | Particles moving perpendicularly to the direction the wave travels. |
Crest | The point where the wave is at it's highest. |
Trough | The points where the wave is at it's lowest. |
Longitudinal Wave | Particles more back and forth in the same direction that the wave travels. |
Compression | When the waves are compacted together. |
Rarefaction | When the waves are spread apart. |
Mechanical Wave | Waves that require a medium. |
Electromagnetic Wave | Wave that can travel without a medium. |
Amplitude | A measure of how far particles in the medium move from their rest position. |
Wavelength | The distance from any point on a wave to the next identical point on the same wave. |
Frequency | The number of waves that pass a point in a given amount of time (usually one second). |
Hertz(Hz) | Frequency is measured in hertz and one hertz is equal to one wavelength per second. |
Wave Speed | The speed that the waves travel and that depends on the properties of the medium. |
Force | A push or pull exerted on an object in order to change the motion of an object measured in Newtons. |
Work | The use of force to move an object some distance measured in Joules. |
Power | The amount of worked used in a given amount of time measured in watts. |
It took 500 newtons of force to push a car 4 meters. How much work was done? | 2,000J (work=500N x 4M) |
How much work is done using a 60 watt light bulb for 1 hour? | 60J(work=60J x 1 hour/ Seconds) |