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9th Standard English Medium Science Subject Sound Book Back 3 Mark Questions with Solution Part - II updated Book back Questions Question Bank Software May-13 , 2022

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9th Standard English Medium Science Subject Sound Book Back 3 Mark Questions with Solution Part - II updated Book back Questions

9th Standard English Medium Science Subject Sound Book Back 3 Mark Questions with Solution Part - II

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 15
    5 x 3 = 15

  1. Name the device which is used to produce sound in laboratory experiments.

  2. What should an object do to produce sound?

  3. Name the physical quantity whose SI unit is ‘hertz’. Define.

  4. How does the sound produced by a vibrating object in a medium reach your ears?

  5. The frequency of a source of sound is 600 Hz. Calculate the number of times it
    vibrates in a minute?

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