Sound Waves
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Wave | when energy disturbs the particles in something it travels in this
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| Medium | the material that a wave travels through (solid, liquid, or gas)
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| Crest | the highest point on a wave
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| Trough | the lowest point on a wave
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| Resting point | when a wave has no energy and is "flat"
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| Amplitude | a measure of how far the particles in a medium move away from the rest position (from rest to crest)
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| wavelength | the distance from crest to crest or trough to trough (measures one cycle or repetition)
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| Transverse wave | particles move up and down; perpendicular to the way that the wave is traveling Example: earthquake waves
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| Longitudinal wave | particles move back and forth in the same direction that the wave travels Example: sound
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| Frequency | measures wave speed and is expressed in Hertz. Found by counting how many crests go by in 1 second. Can be high or low.
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| Wave speed | When a wave goes through something hot and/or very dense, this will increase. If it travels through something cold or not very dense, this will decrease.
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| Pitch | measures how fast a wave is traveling in hertz; how HIGH or LOW a sound is as the wave's wavelength changes.
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| Loudness | how well a sound can be heard or how much energy a sound has. Changes when the amplitude gets taller or shorter.
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| Hertz | Unit that measures how fast a wave is traveling, or the pitch of a sound wave.
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| decibels | Unit that measures how loud that a sound is.
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| Sound | a wave made from vibrations. It causes the particles to vibrate back and forth. Must have a medium to travel, therefore it CANNOT travel in space.
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| Electromagnetic/Light Wave | The one type of wave that CAN travel in space because it doesn't need a medium to travel.
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| Cochlea | The part of your ear that is filled with liquid and tiny hair cells.
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| Solid | A medium that sound can travel the fastest through.
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| Vacuum | A place where there is no air, sound can't travel here.
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| Gas | A medium that sound travels the slowest through.
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| Doppler Effect | When something making sound (fire truck) is moving past you and you here a change in the pitch of the sound (even though it didn't really change).
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| Resonance | when the natural frequency of an object is matched and it causes the object to vibrate (finger around glass, shattering glass with voice, musical instruments, etc.)
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| Sonic Boom | Going faster than the speed of sound (over 750 mph) and breaking the sound barrier creates this.
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| Hammer, Anvil, and Stirrup | Tiny bones in your ear that are connected and pass along the sound wave to help you hear.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
wwmsScience6
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