More cards in this set

Card 6

Front

The type of sound used to study unborn babies

Back

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Card 7

Front

340 m/s is the speed of ----- in air?

Back

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Card 8

Front

The unit of frequency

Back

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Card 9

Front

Both wavelength and amplitude can be measured in........

Back

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Card 10

Front

What sound cannot travel through?

Back

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Card 11

Front

If 20 waves pass in 4 seconds the frequency is ----- Hz

Back

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