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15 Cards in this Set
- Front
- Back
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Longitudinal waves |
have oscillations parallel to the direction of wave propagation |
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Transverse waves |
have oscillations perpendicular to the direction of wave propagation |
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Displacement |
the distance of a point on a wave from its position of equilibrium |
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Amplitude |
The maximum displacement of a wave |
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Time period |
Time taken for 1 complete oscillation |
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Frequency |
Number of oscillations per second |
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Wavelength |
The distance between two adjacent similar points |
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Wavespeed |
The speed at which energy is transmitted by a wave |
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Phase difference |
Angle difference between 2 points |
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Antiphase |
Phase difference is below 360 |
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Phase |
Phase difference is above or equal to 360 |
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Cohererent |
When 2 waves have the same frequency and maintain constant phase relationship |
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Superposition |
When 2 waves meet and combine their displacements add together. The displacements of the superposed waves is the sum of the displacement of the component waves |
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Constructive interference |
When 2 coherent waves are in phase and superpose, the displacements add together |
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Destructive interference |
When 2 coherent waves are in anti-phase and superpose, the displacements subtract |
