Waves Definitions
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 | Disturbance that carries energy from one place to another
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| Transverse Wave | Where the direction of vibration is perpendicular to the propagation of the wave
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| Longitudinal Wave | Where the direction of vibration is parallel to the propagation of the wave
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| Mechanical Wave | Where particles are vibrated
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| Electromagnetic Wave | Disturbance/vibration of electric and magnetic fields
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| Periodic Travelling Wave | Regularly repeating cycle that appears to move in the direction of propagation of the wave
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| Crest | Highest point of a transverse wave
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| Trough | Lowest point of a transverse wave
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| Oscillation | One complete vibration of the source
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| Wavelength | Distance from a point on a wave to the corresponding point on an adjacent wave
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| Frequency | Number of waves passing a point per second
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| Amplitude | Maximum distance from the undisturbed position
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| Velocity of a wave | Product of wavelength and frequency
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| Reflection | When a wave bounces off an object in its path
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| Refraction | When a wave changes direction going from one medium to another
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| Diffraction | When a wave spreads out into space beyond a barrier
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| Interference | The addition of two or more waves, forming a single resultant wave
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| Constructive Interference | When two or more waves combine, resulting in a single wave of greater amplitude than the source waves
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| In phase | When the crests from one source meet crests from another
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| Destructive Interference | When two or more waves combine, resulting in a single wave of smaller amplitude than the source waves
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| Coherent Wave Sources | Sources that produce waves of the same frequency that are either in phase or a constant phase difference apart
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| Interference Pattern | When waves from two or more coherent sources combine; it contains a repeating pattern of constructive and destructive interference
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| Polarisation | When the direction of vibration of a wave is restricted to one plane
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Created by:
conordesmond
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