light and sound 2
Terms
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- A form of energy that travels through matter as waves.
- sound
- A space that is empty of any matter.
- vacuum
- The bending of light as it passes from one material into another.
- refraction
- The ability to do work or cause change.
- Engery
- The highness or lowness of a sound.
- pitch
- A region in a sound wave where particles have been pushed together.
- compression
- The distance between one crest of a wave and the next crest.
- Wavelength
- A form of electromagnectic energy that can be seen.
- visible light
- The number of waves (such as light or sound) produced in a unit of time, such as a second.
- frequency
- Wave engery given off by the Sun and some other objects.
- electromagnectic radiation
- A unit used to measure wave frequency.
- hertz
- A region in a sound wave where there are fewer particles than normal.
- rarefaction
- The bouncing of light or sound off a surface.
- reflection
- A disturbance that carries energy and that travels away from its starting point.
- wave
- The loudness or softness of a sound.
- volume
- A back and forth movement of matter.
- vibration