Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Wave | an electrical impulse or radio wave transmitted or received
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crest | The top of a wave
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trough | A crest is the point on a wave with the maximum value or upward displacement within a cycle.
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amplitude | The maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position
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wavelength | A wave can be measured between any two points with the same phase, such as between crests
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frequency | the frequency in hertz meaning the number of cycles per second.
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absorption | the process or action by which one thing absorbs or is absorbed by another.
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reflection | the throwing back by a body or surface of light, heat, or sound without absorbing it.
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law of reflection | The incident ray, the reflected ray and the normal to the reflection surface at the point of the incidence lie in the same plane.
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diffraction | the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.
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interference | the combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or canceled.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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