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Chapter 1 Energy
Energy of Waves
Question | Answer |
---|---|
Any disturbance that transmits energy through matter or empty space. | wave |
A substance through which a wave can travel. | medium |
Waves that need a medium. | mechanical |
Visible light, radio and tv signals, microwaves, and X-rays. | electromagnetic |
These waves transfer energy without a medium. | electromagnetic |
This wave is a combination of a transverse wave and a longitudinal wave. | surface wave |
Particles move up and down in this type of wave. | transverse |
Highest point of a transverse wave. | crest |
lowest point between each crest. | trough |
Particles move back and forth along a path in this type of wave. | longitudinal |
Area of crowded particles in a longitudinal wave. | compression. |
Area where the particles are spread apart in a longitudinal wave. | rarefraction |
Waves transfer this. | energy |
The maximum distance that the particles of a medium vibrate from their rest position. | amplitude |
The distance from any point on a wave to an identical point on the next wave. | wavelength |
The number of waves produced in a given amount of time. | frequency |
The speed at which a wave travels. | wave speed |
As frequency increases, the amount of this also increases. | energy |
The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does no go through. | reflection |
A reflected sound wave. | echo |
The bending of a wave as the wave passes from one medium to another at an angle. | refraction |
The bending of waves around a barrier or through an opening. | diffraction |
The combination of two or more waves that result in a single wave. | interference |
Interference that happens when the crests of one wave overlap the crests of another wave. | constructive |
Interference that happens when the crests of one wave and the troughs of another wave overlap. | destructive |
A pattern of vibration that simulates a wave that is not moving. | standing wave |
Whan a vibrating object causes a second object to vibrate. | resonance |