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11. Force and Pressure
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Q48 of 100 Page 209

What is meant by gravitational force (or force of gravity)? Give its one example.

The force of attraction between all masses in the universe, especially the attraction of the earth's mass for bodies near its surface. For example: When you hold a ball up in the air, the mass of Earth allows the ball to fall to the Earth.


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46

Describe one activity to show the existence of atmospheric pressure.

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Explain why, water comes out more slowly from an upstairs tap than from a similar tap downstairs.

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Calculate the pressure when a force of 200 N is exerted on an area of:


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Questions · 100
11. Force and Pressure
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