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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 |