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School Physics Quiz : Sound


Answer the following questions based on sound.

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Multiple choice

Your Performance  

1.

Sounds travels faster in air as compared to water.

  True

  False

 

2.

The sound of thunder is heard 10 s after the flash of lightning. If the speed of sound in air is 330 m/s, then the cloud is at a distance of _______.

  33.0 m

  66.0 m

  1650 m

  3300 m

  Half-n-half Clue
 

3.

Ultrasonic vibrations are used in medicine for imaging internal organs of the human body.

  True

  False

 

4.

The repetition of sound which is reflected from an object is referred to as _______.

  the pitch

  the amplitude

  an echo

  Half-n-half Clue
 

5.

Sound can be reflected as well as refracted.

  True

  False

 

6.

Sounds are produced by musical wind-instruments when columns of air are made to vibrate.

  True

  False

 

7.

The number of sound vibrations per second is called _______.

  amplitude

  time period

  frequency

  Half-n-half Clue
 


 
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