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| a repeating disturbance or movement that transfers energy through matter or space |
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| the matter the wave travels through, could be solid, liquid, or gas |
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| moves back and forth at right angles to the direction that the wave travels |
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| moves back and forth along the same direction that the wave travels |
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| the less dense part of a compressional wave |
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| the distance between one point on a wave and the next one like it; crest to crest, trough to trough |
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| the number of wavelengths that pass a fixed point each second |
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| amount of time it takes one wavelength to pass a point |
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| related to the energy carried by a wave; the greater the energy is the more amplitude it has; measured from resting point to high or low point |
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| the angle of incidence is equal to the angle of reflection |
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| bending of a wave caused by a change in its speed as it moves from one medium to another |
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| causes a wave to change direction and bend |
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| when two or more waves overlap and combine to form a new wave |
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| constructive interference |
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| waves subtract from each other |
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| forms when waves equal in wavelength and amplitude, and in opposite directions, continuously interfere with each other |
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| the process in which an object is made to vibrate by absorbing energy at its natural frequency |
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