Waves and Light
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| 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 |
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Created by:
jlarose
on 2008-11-15