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8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - I Question Bank Software Jun-16 , 2021

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8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - I

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - I

8th Standard

    Reg.No. :
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Science

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

  1. Define friction. Give two examples of the utility of friction in day to day life.

  2. How do sailors protect their ship during a heavy storm?

  3. Why is a ball bearing used in a cycle hub?

  4. Is there any possibility of making a special device to measure the magnitude of friction directly?

  5. A bubble rises from the bottom of a pond to its surface by increasing its radius by 3 times its value when it was at the bottom. Calculate the depth of the pond. (Hint: Pressure depends on the depth of the pond. Volume is inversely related to pressure.) [Science Olympiad]

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