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| disturbance in matter that carries energy from one place to another |
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| meterial through which a wave travels |
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| highest point of the wave above the rest position |
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| lowest point below the rest position |
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| wave that causes the medium to vibrate at right angles to the direction in which the wave travels |
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| area where the particles in a medium are spaced close together |
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| area where the particles in a medium are spread out |
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| wave in which the vibration of the medium is parallel to the direction the wave travels |
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| wave that travels along a surface separating two media |
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| any motion that repeats at regular time intervals |
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| time required for one complete cycle |
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| number of complete cycles in a given time |
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| frequency is measured in this |
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| distance between a point on one wave and the same point on the next cycle of the wave |
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| maximum displacement of the medium from its rest position |
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| occurs when a wave bounces off a surface that it cannot pass through |
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| bending of a wave as it enters a new medium at an angle |
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| bending of a wave as it moves around an obstacle or passes through a narrow opening |
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| occurs when two or more waves overlap and combine together |
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| Constructive Interference |
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Definition
| occurs when two or more waves combine to produce a wave with a larger displacement |
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| occurs when two or more wave combine to produce a wave with a smaller displacement |
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| wave that appears to stay in one place |
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| point on a standing wave that has no displacement from the rest position |
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| point where a crest or through occurs midway between two nodes |
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| longitudinal waves - compressions and rarefactions that travel through a medium |
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| rate at whicha wave's energy flows througha given area |
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| unit that compares the intensity of different sounds |
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| physical response to the intensity of sound, modified by physical factors |
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| frequency of a sound as you perceive it |
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| technique for determining the distance to an object under water |
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| a change in frequency caused by motion of the sound source, motion of the listener, or both. |
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| is the response of a standing wave to another wave with the same frequency |
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Term
| A wave is created when... |
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Definition
| a source of energy causes a vibration to move through a medium |
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Definition
| Longitudinal, transverse, and surfave waves |
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Term
| A wave's frequency equals what? |
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Definition
| the frequency of the vibrating source producing the wave |
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Term
| A energy of a wave increases... |
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Definition
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Term
| Reflection does not change what? but can what? |
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Definition
| does not change the speed or frequency of a wave, but the wave can be flipped upside down |
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Term
| Why does Refraction occur? |
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Definition
| it occurs because one side of a wave moves more slowly than the other side |
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Definition
| constructive and destructive |
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Term
| A standing wave forms only if... |
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Definition
| the length of a vibrating cord is a multiple of one half wavelength |
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Term
| When does a wave diffract more? |
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Definition
| if its wavelength is large compared to the size of an opening or obstacle |
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