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When a coin begins to move downwards, it...

When a coin begins to move downwards, it is clear that the state of motion of the coin under goes a change. Answer the below points:
(a) Can this happen without any force acting on it?
(b) Which is this force?

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Coins fall towards the Earth because it pulls them.
(b) This force is called force of gravity.
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PEARSON IIT JEE FOUNDATION-FORCE AND PRESSURE-CLASSROOM CORNER( B. Short Answer Type Questions)
  1. List any two real-life situations in which pressure plays a role.

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  2. State any three effects of force on an object.

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  3. Why does a person weigh lesser on the Moon than he does on Earth?

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  4. Name the force acting on a plastic bucket containing water held abov...

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  5. Define the following terms. Frictional force

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  6. Define the following terms. Weight

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  7. Define the following terms. Non-contact force

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  8. What happens to the speed of a body when force is applied?

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  9. Explain why is force directly proportional to the acceleration.

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  10. Why does liquid pressure increase with depth?

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  11. Mayank is trying to push a heavy box kept on a floor. What are the dif...

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  12. Why do people sometimes have a bleeding nose while travelling on an ai...

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  13. Calculate the magnitude and the direction of the resultant force acti...

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  14. Explain why Moon exerts a lesser gravitational force on objects as com...

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  15. When a coin begins to move downwards, it is clear that the state of mo...

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  16. What is the cause of change in motion or change in the state of motion...

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  17. An archer stretches her bow while taking aim at the target. She then r...

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  18. Identify the agent exerting force and the object on which it acts when...

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  19. How to describe state of motion? Answer in your own words.

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  20. How a force can change the state of motion?

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