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| For a wave or vibration, the maximum displacement on either side of the equilibrium (midpoint) position. |
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| The V-shaped wave produced by an object moving across a liquid surface at a speed greater than the wave speed. |
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| The change in frequency of wave motion resulting from motion of the wave source or receiver. |
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| The setting up of vibrations in an object by a vibrating force. |
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| For a vibrating body or medium, the number of vibrations per unit time. For a wave, the number of crests that pass a particular point per unit time. |
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| The SI unit of frequency. It equals one vibration per second. |
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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 is an example. |
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| A frequency at which an elastic object tends to vibrate, so that minimum energy is required to produce a forced vibration or to continue vibrating at that frequency. |
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| The time required for a vibration or a wave to make a complete cycle; equal to 1/frequency. |
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| The response of a body when a forcing frequency amtaches its natural frequency. |
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| The loud sound resulting from the incidence of a shock wave. |
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| A wave in which the medium vibrates in a direction perpendicular (transverse) to the direction in which the wave travels. Light is an example. |
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| The distance between successive crests, troughs, or identical parts of a wave. |
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