7th grade science Unit 2 vocab

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Last updated 8:34 PM on 10/15/26
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10 Terms

1
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How does sound move?

Through waves

<p>Through waves</p>
2
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Crest

the highest point of the wave

<p>the highest point of the wave</p>
3
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amplitude

what is the total height of the wave called?


4
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wavelength

the distance between two crests or troughs

<p>the distance between two crests or troughs</p>
5
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trough

Lowest point of a wave

<p>Lowest point of a wave</p>
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resting point

The horizontal line through the middle of the wave, halfway between crest and trough

<p>The horizontal line through the middle of the wave, halfway between crest and trough</p>
7
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taller, bigger ups and downs

if you want a louder sound, what will the amplitude look like?

8
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If you want a HIGHER pitch

shorter wavelength (squish the waves closer together)

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if you want a lower pitch?

longer wavelength (waves are stretched further apart)

<p>longer wavelength (waves are stretched further apart)</p>
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If you want a quieter sound?

less amplitude (make the ups and downs smaller)

<p>less amplitude (make the ups and downs smaller)</p>