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| a disturbance in matter that carries energy from one place to another. |
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the material through which a wave travels. -a mechanical wave is created when a source of energy causes a vibration to travel through a medium. |
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the highest point of a wave [image] |
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the lowest point of a wave. [image] |
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a wave that causes the medium to viberate at a right angle. [image] |
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| an area where the particles are close together. |
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A wave in which the vibrations of the medium travel in the direction of the wave. [image] |
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| a wave that travels along a surface seperating to media. |
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| any motion that repeats in regular time. |
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number of complete cycles in a given area. |
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| Frequency is measured in cycles per second or hertz. |
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the distance between one wave and another cycle wave at the same point. -Increasing the frequency decreases the wavelength. |
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the maximum displacement of the medium from its rest position. -the more energy a wave has, the greater its amplitude. |
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| one end of a rope is vibrated to produce a wave with a wavelength of 0.25 meters. the frequency of the wave is 3.0 hertz. What is the speed of the wave? |
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wavelength=0.25m frequency=3.0Hz speed=wavelength x frequency speed=0.25m x 3.0Hz 0.25 x3.0= .75m/s |
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occurs when a wave bounces off a surface that i can not pass through -reflection does not change the speed of the frequency of a wave, but the wave can not be flipped upside down. |
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the bending of a wave as it enters a new medium at an angle. -Refraction occurs because one side of the wave moves more slowly than the other side. |
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the bending of a wave as it moves around an obstacle or through a narrow opening. -a wave diffracts more if its wavelength is large compared to the size of the opening on the obstacle. |
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occurs when two or more waves overlap and combine together. -Two types of interference are constructive interference and destructive interference. |
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| constructive interference. |
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| occurs when two or more waves combine to produce a wave with a larger displacement. |
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| destructive interference. |
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| occurs when two or more waves combine to produce a wave witgh a smaller displacement. |
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a wave that appears to stay in one place. -a standing wave forms only if half a wavelength or a multiple of half a wavelength fit exactly into the length of the viberating cord. |
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| a point on a standing wave that has no displacement from the rest point. |
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| a point where a crest or trough occurs midway between two nodes. |
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longitudinal wave--compression and rarefaction that travels through a medium. -many behaviors of sound can be explained using a few properties-speed, intensity, loundness, frequency, and pitch. |
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| the rate at which a wave's energy flows through a given area. |
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a unit that compares the intensity of different sounds. |
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| a physical response to the intensity of sound, modified by physical factors. |
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| the frequency of a sound as you percieve it. |
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| a technique for determing the distance to an object under water. |
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a change in sound frequency caused by motion of the sound source, motion of the listener, or both. -as a source of sound approaces the observer hears a higher frequency, when the sound source moves away, the observer hear a lower frequency. |
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| the response of a stading wave to another wave of the same frequency. |
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