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Science exam waves
Waves and Light
Question | Answer |
---|---|
Wave | movement that transfers energy through matter or space |
medium | matter that moves to carry the energy, some kinds of waves do not need a medium, does not travel with the wave |
equilibrium position (or rest position) | where the medum would be if it were still |
crest | highest point of a wave |
trough | lowest point of a wave |
wavelength | distance from one crest to next or from one trough to the next |
amplitude | height of a wave crest or the depth of a trough from the rest position |
Frequency | number of times it repeats in a given period of time |
Frequency is measured in _______ | Hertz Hz |
Heartz/Hz means ________ | cycles per socond |
when a wavelength has a higher frequency, it has a ____________ wavelength | shorter |
waves with greater amplitude are transferring ________energy | more |
waves with _____________ frequency are transferring more energy | higher |