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| What is the amplitude of a wave? |
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| What about a sound wave does amplitude change? |
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| What is the wavelength of a wave? |
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| crest to crest/ trough to trough |
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| If you increase the wavelength of a wave, what else does that change about the wave? |
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| What characteristics of a sound wave does wavelength affect? |
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| A low point of a wave is called a _____ |
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| A crest is the _____ of a wave. |
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| When the particles of the medium move back and forth along the direction of the wave motion, the wave is a ______ ______ |
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| When the particles of a medium are far apart, that part of the wave is called a ______ |
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| Compression is the part of the medium where particles are _____ |
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| A wave in which the particles of the medium move at right angles to the direction in which the wave travels is called a _____ _____ |
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| Amplitude is the ____ __ ___ ____ |
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| A larger amplitude means _____, smaller amplitude means ____ |
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| number of waves produced in a certain time. |
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| How do you measure frequency? |
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| count the number of crests or troughs in a certain time. |
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| Frequency is expressed in ____ and ____ equals _____ |
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| The higher the frequency, the (shorter, longer) the wavelength. |
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| Higher frequency means (more, less) energy |
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| How do you find wave speed? |
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| measure the distance a single crest travels in a given time. |
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| Sound travels fastest through (liquid, gas, solid). Why? |
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Definition
| solid/ more particles to bounce off of |
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| occurs when a wave bounces back after striking a barrier ex. mirror |
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| Bending of a wave as it passes at an angle from one medium to another (speed changes) |
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| the bending of a wave around a barrier or through an opening |
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| a disturbance that transmits energy through matter or space. |
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| Can waves travel in a vacuum? |
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| the substance through which a wave can travel. Can be a solid, liquid, or gas. |
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| Why can't you hear an alarm clock if you put it in an air tight jar? |
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Definition
| sound waves depend on the vibration of air molecules so they must have a medium through which to travel. In a vacuum, there are no molecules to travel through. |
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| waves the require a medium. ex. sound waves, ocean waves, seismic waves, and waves on a guitar string. |
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| If there is an explosion in space, does it make a sound? explain. |
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| no/ sound requires a medium to travel through and there are no molecules in space. It's a vacuum. |
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| Are light waves mechanical? Explain |
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| no/ light can travel through space so it does not require a medium. |
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