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12 Cards in this Set
- Front
- Back
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Sine curve
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A wave form traced by simple harmonic motion, which can be made visible on a moving conveyor belt by a pendulum swinging at right angles above the moving belt.
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Amplitude
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for a wave or vibration, the maximum displacement on either side of the equilibrium (midpoint) position
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Wavelength
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The distance between successive crests, troughs, or identical parts of a wave
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Frequency
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for a vibrating body or medium, the number of crests that pass a particular point per unit time.
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Hertz
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The SI unit of frequency. One hertz equals one vibration per second
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Period
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the time in which a vibration is completed. The period of a wave equals the period of the source, and is equal to 1/frequency
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Wave speed
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the speed with which waves pass a particular point:
wave speed= wavelength X frequency |
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transverse wave
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a wave in which the vibration is in a direction perpendicular (transverse) to the direction in which the wave travels. Light consists of transverse waves
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longitudinal wave
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a wave in which the medium vibrates in a direction parallel (longitudinal) to the direction in which the wave travels. Sound consists of longitudinal waves
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Interference pattern
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The pattern formed by sperposition of different sets of waves that produces mutual reinforcement in some places and cancellation in others
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standing wave
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a stationary wave pattern formed in a medium when two sets of identical waves pass through the medium in opposite directions
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doppler effect
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the shift in received frequency due to motion of a vibrating source toward or away from a receiver
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