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(a) What do you understand by the terms ...

(a) What do you understand by the terms "balanced forces" and "unbalanced forces" ? Explain with examples.
(b) What types of forces-balanced or unbalanced-act on a rubber ball when we press it between our hands ? What effect is produced in the ball ?

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LAKHMIR SINGH & MANJIT KAUR-FORCE AND LAWS OF MOTION-Exercise
  1. (a) Define the term 'force'. (b) State the various effects of force.

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  2. Give one example each where: (a) a force moves a stationary body. ...

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  3. (a) What do you understand by the terms "balanced forces" and "unbalan...

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  4. (a) What happens to the passengers travelling in the bus when the bus...

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  5. When a tooothpaste tube is squeezed, its shape changes. The force resp...

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  6. The inertia of an object tends to cause the object

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  7. When we talk of a force acting on a body, it usually means:

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  8. A passenger in a moving train tosses a coin which falls behind him. It...

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  9. When a carpet is beaten with a stick, dust comes out of it, Explain.

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  10. A water tanker filled up to two-thirds of its tank with water is runni...

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  11. If we release a magnet held in our hand, it falls to the ground. The f...

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  12. The inertia of a moving object depends on:

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  13. When a rubber balloon held between the hands is pressed, its shape cha...

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  14. Which of the following effect cannot be produced by an unbalanced forc...

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  15. A plastic ball and a clay ball of equal masses, travelling in the same...

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  16. A moving bicycle comes to rest after sometime if we stop pedalling it....

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  17. A man throws a ball weighing 500 g vertically upwards with a speed of ...

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  18. A car is mnoving on a level road, If the driver turns off the engine o...

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  19. There are two types of forces X and Y. The forces belonging to type X ...

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  20. Which physical quantity corresponds to rate of change of momentum?

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