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11. Force and Pressure
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Q43 of 100 Page 209

Give two examples from everyday life which show that air exerts pressure.

1. Drinking Straw


2. Vacuum Cleaner


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41

What is muscular force ? Give one example of muscular force.

42

Which of the following are non-contact forces ?

Magnetic force, Frictional force, Gravitational force, Muscular force, Electrostatic force.

44

What is a rubber sucker? How does it work? State any one use of a rubber sucker.

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Why do mountaineers usually suffer from nose-bleeding at high altitudes ?

Questions · 100
11. Force and Pressure
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