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What is meant by saying that 'force is d...

What is meant by saying that 'force is due to an interaction'? Give an example to illustrate your answer.

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LAKHMIR SINGH & MANJIT KAUR-FORCE AND PRESSURE.-EXERCISE
  1. Define 'state of motion' of an object. Name the 'agent' which can chan...

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  2. Give two example of situations where you push or pull to change the st...

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  3. What is meant by saying that 'force is due to an interaction'? Give an...

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  4. In a tug of war, when the two teams are pulling the rope, a stage come...

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  5. What is force ? State the various effects of force.

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  6. Give one example where force moves a stationary object.

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  7. State one example where force stops a moving object.

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  8. Give one example where force changes the speed of a moving object.

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  9. Give one example where force changes the direction of a moving object.

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  10. Why does the shape of an oinment tube change when we sqeeze it ?

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  11. What happens to the springs of a sofa when we sit on it ?

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  12. Name the various types of forces.

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

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  14. Which of the following are non - contact forces ? Magnetic force, Fr...

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  15. Give two example from everyday life which show that air exerts pressur...

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

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  17. Why do mountaineers ususally suffer from nose - bleading at high altit...

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  18. Describe one activity to show the existence of atmospheric pressure.

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  19. Explain why, water comes out more slowly from an upstairs tap than fro...

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  20. What is meant by gravitational force ( or force of gravity ) ? Give it...

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