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When a ball is dropped from a height, it...

When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.

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The correct Answer is:
Force of gravity
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LAKHMIR SINGH & MANJIT KAUR-FORCE AND LAWS OF MOTION-Exercise
  1. Name the unbalanced force which slows down a moving bicycle when we st...

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  2. State whether the following statement is true or false Unbalanced fo...

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  3. When a ball is dropped from a height, its speed increases gradually. N...

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  4. Name the property of bodies (or objects) to resist a change in their s...

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  5. What is the other name for Newton's first law of motion?

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  6. The mass of object A is 6 kg whereas that of another object B is 34 kg...

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  7. Name the scientist who gave the laws of motion.

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  8. State whether force is a scalar or a vector quantity.

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  9. With which physical quantity should the speed of a running bull be mul...

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  10. Fill in the following blanks with suitable words: (a) …... is a meas...

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  11. It is easier to stop a tennis ball than a cricket ball moving with the...

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  12. Explain the meaning of the following equation: p=mxxv where symbol...

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  13. Explain how, a karate player can break a pile of tiles with a single b...

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  14. Calculate the momentum of a toy car of mass 200 g moving with a speed ...

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  15. What is the change in momentum of a car weighing 1500 kg when its spee...

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  16. A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the veloc...

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  17. Calculate the momentum of the following: (a) an elephant of mass 200...

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  18. Which of the two, balanced forces or unbalanced forces, can change the...

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  19. Describe the term 'inertia' with respect to motion.

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  20. On what factor does the inertia of a body depend ? Which has more iner...

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