Objects at Rest and in Motion / āĻ¸ā§āĻĨāĻŋā§° āφ⧰⧁ āĻ—āϤāĻŋāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āϤ⧁













Definition / āϏāĻ‚āĻœā§āĻžāĻž


Objects at Rest / āĻ¸ā§āĻĨāĻŋā§° āĻŦāĻ¸ā§āϤ⧁ : An object at REST does not change its position with time. (āĻ¸ā§āĻĨāĻŋā§° (Rest) āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āĻ¤ā§ā§ąā§‡ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤)


Objects in Motion / āĻ—āϤāĻŋāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āϤ⧁ : An object in MOTION changes its position with time. (āĻ—āϤāĻŋ (Motion)**āϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āĻ¤ā§ā§ąā§‡ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰⧇āĨ¤)



 Examples / āωāĻĻāĻžāĻšā§°āĻŖ:



  1. The book is at rest. The book does not move. (āĻ•āĻŋāϤāĻžāĻĒāĻ–āύ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āφāϛ⧇āĨ¤āĻ•āĻŋāϤāĻžāĻĒāĻ–āύ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤)

  2. The bicycle is at rest. The bicycle is not moving. (āϚāĻžāχāϕ⧇āϞāĻ–āύ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āφāϛ⧇āĨ¤ āϚāĻžāχāϕ⧇āϞāĻ–āύ āϚāϞāĻŋ āĻĨāĻ•āĻž āύāĻžāχāĨ¤)

  3. The bus is in motion. The bus is moving from one place to another. (āĻŦāĻžāĻ›āĻ–āύ āĻ—āϤāĻŋāϤ āφāϛ⧇āĨ¤ āĻŦāĻžāĻ›āĻ–āύ āĻāĻ āĻžāχ⧰ āĻĒā§°āĻž āφāύ āĻ āĻžāχāϞ⧈ āĻ—ā§ˆ āφāϛ⧇āĨ¤)

  4. The child is in motion. The child is walking or running. (āĻļāĻŋāĻļ⧁āϟāĻŋ āĻ—āϤāĻŋāϤ āφāϛ⧇ āĻļāĻŋāĻļ⧁āϟāĻŋāϝāĻŧ⧇ āĻ–ā§‹āϜ āĻ•āĻžāĻĸāĻŧāĻŋāϛ⧇ āĻŦāĻž āĻĻ⧌⧰āĻŋ āφāϛ⧇āĨ¤)

  5. The ball is at rest. The ball is not moving. (āĻŦāϞāĻŸā§‹ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āφāϛ⧇āĨ¤ āĻŦāϞāĻŸā§‹ āϚāϞāĻŋ āĻĨāĻ•āĻž āύāĻžāχāĨ¤)

  6. The ball is in motion. The ball is rolling or moving. (āĻŦāϞāĻŸā§‹ āĻ—āϤāĻŋāϤ āφāϛ⧇āĨ¤ āĻŦāϞāĻŸā§‹ āϗ⧁⧰āĻŋ āĻ—ā§ˆ āφāϛ⧇ āĻŦāĻž āϚāϞāĻŋ āφāϛ⧇āĨ¤)


Rest vs Motion / āĻ¸ā§āĻĨāĻŋā§°āϤāĻž āĻŦāύāĻžāĻŽ āĻ—āϤāĻŋ



  • Rest (āĻ¸ā§āĻĨāĻŋā§°) : No change in position. (āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤)

  • Motion (āĻ—āϤāĻŋ) : Changes position with time. (āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰⧇āĨ¤)



Real - life Example / āĻŦāĻžāĻ¸ā§āĻ¤ā§ą āĻœā§€ā§ąāύ⧰ āωāĻĻāĻžāĻšā§°āĻŖ


chair in the classroom is at rest, but a fan blade is in motion because it rotates. (āĻļā§ā§°ā§‡āĻŖā§€āϕ⧋āĻ āĻžā§° āϚāϕ⧀āĻ–āύ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āĻĨāĻžāϕ⧇, āĻ•āĻŋāĻ¨ā§āϤ⧁ āĻĢ⧇āύ⧰ āĻĒāĻžāĻ–āĻŋ āĻ—āϤāĻŋāϤ āĻĨāĻžāϕ⧇, āĻ•āĻžā§°āĻŖ āχ āĻ˜ā§‚ā§°āĻŋ āĻĨāĻžāϕ⧇āĨ¤)


Summary / āϏāĻžā§°āĻžāĻ‚āĻļ

  • Rest means no change in position. (āĻ¸ā§āĻĨāĻŋā§° (Rest) āĻŽāĻžāύ⧇ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰āĻžāĨ¤)

  • Motion means change in position with time. (āĻ—āϤāĻŋ (Motion) āĻŽāĻžāύ⧇ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰āĻžāĨ¤)


Note: i. Rest = No Movement = āĻ¸ā§āĻĨāĻŋā§° = āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇, ii. Motion = Movement = āĻ—āϤāĻŋ = āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰⧇


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Objects at Rest and in Motion – PYQs & Expected MCQs :: āĻ¸ā§āĻĨāĻŋā§° āφ⧰⧁ āĻ—āϤāĻŋāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āϤ⧁ – PYQs āφ⧰⧁ āϏāĻŽā§āĻ­āĻžā§ąā§āϝ MCQs


Q1. An object at rest means - āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āϤ⧁ āĻŽāĻžāύ⧇ -

A) It changes its position continuously. | B) It does not change its position with time. | C) It moves very slowly. | D) It rotates continuously.


Ans: B) It does not change its position with time.


Explanation : A body at rest does not change its position with time. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: Rest āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āĻ¤ā§ā§ąā§‡ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤


Q2. An object in motion - :: āĻ—āϤāĻŋāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āϤ⧁ -

A) Does not move. | B) Changes its position with time. | C) Always remains at one place. | D) Has no force acting on it.


Ans: B) Changes its position with time.
Explanation: A body is in motion if its position changes with time. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: Motion āĻŽāĻžāύ⧇ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰āĻžāĨ¤


Q3. Which one is at rest ? āϤāϞ⧰ āϕ⧋āύāĻŸā§‹ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āφāϛ⧇ ?

A) Flying bird | B) Moving bus | C) Book kept on a table | D) Rolling ball


Ans: C) Book kept on a table.
Explanation: A book placed on a table does not change its position. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŸā§‡āĻŦ⧁āϞ⧰ āĻ“āĻĒā§°āϤ āĻĨāĻ•āĻž āĻ•āĻŋāϤāĻžāĻĒāĻ–āύ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤


Q4. Which one is in motion ? āϤāϞ⧰ āϕ⧋āύāĻŸā§‹ āĻ—āϤāĻŋāϤ āφāϛ⧇ ?

A) Chair in a classroom | B) Parked bicycle | C) Running child | D) Book on a desk


Ans: C) Running child.
Explanation: A running child changes position continuously. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻĻ⧌⧰āĻŋ āĻĨāĻ•āĻž āĻļāĻŋāĻļ⧁āϟāĻŋāϝāĻŧ⧇ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰āĻŋ āĻĨāĻžāϕ⧇āĨ¤


Q5. A fan blade is an example of - āĻĢ⧇āύ⧰ āĻĒāĻžāĻ–āĻŋ āĻ•āĻŋāĻšā§° āωāĻĻāĻžāĻšā§°āĻŖ ?

A) Rest | B) Motion | C) Force | D) Energy


Ans: B) Motion.
Explanation: The fan blade rotates, so it is in motion. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻĢ⧇āύ⧰ āĻĒāĻžāĻ–āĻŋ āĻ˜ā§‚ā§°āĻŋ āĻĨāĻžāϕ⧇, āϏ⧇āϝāĻŧ⧇ āχ āĻ—āϤāĻŋāϤ āĻĨāĻžāϕ⧇āĨ¤


Q6. A football lying on the ground is in - āĻŽāĻžāϟāĻŋāϤ āĻĒā§°āĻŋ āĻĨāĻ•āĻž āĻĢ⧁āϟāĻŦāϞāĻŸā§‹ āĻ•āĻŋ āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āφāϛ⧇ ?

A) Motion | B) Rest | C) Rotation | D) Speed


Ans: B) Rest.
Explanation: The football is not changing its position. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻĢ⧁āϟāĻŦāϞāĻŸā§‹ā§ąā§‡ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤


Q7. Which statement is correct ? āϕ⧋āύāĻŸā§‹ āĻŦāĻ•ā§āϤāĻŦā§āϝ āϏāĻ āĻŋāĻ• ?

A) Rest means change in position. | B) Motion means no change in position. | C) Motion means change in position with time. | D) Rest means moving slowly.


Ans: C) Motion means change in position with time.
Explanation: Motion is defined as the change in position of an object with time. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: Motion āĻŽāĻžāύ⧇ āϏāĻŽāϝāĻŧā§° āϞāϗ⧇ āϞāϗ⧇ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰āĻžāĨ¤


Q8. A bus travelling from Guwahati to Jorhat is - āĻ—ā§ā§ąāĻžāĻšāĻžāĻŸā§€ā§° āĻĒā§°āĻž āϝ⧋⧰āĻšāĻžāϟāϞ⧈ āĻ¯ā§‹ā§ąāĻž āĻŦāĻžāĻ›āĻ–āύ -

A) At Rest | B) In Motion | C) Stationary | D) None of these


Answer: B) In Motion.
Explanation: The bus is changing its position while travelling. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŦāĻžāĻ›āĻ–āύ āϝāĻžāĻ¤ā§ā§°āĻžā§° āϏāĻŽāϝāĻŧāϤ āύāĻŋāϜ⧰ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āϕ⧰āĻŋ āĻĨāĻžāϕ⧇āĨ¤


Q9. Which pair is correctly matched ? āϕ⧋āύāĻŸā§‹ āϝ⧋⧰āĻž āϏāĻ āĻŋāĻ•āĻ­āĻžā§ąā§‡ āĻŽāĻŋāϞ āĻ–āĻžāχāϛ⧇ ?

A) Rest – Changes position | B) Motion – No movement | C) Rest – No change in position | D) Motion – Fixed position


Ans: C) Rest – No change in position.
Explanation: A body at rest does not change its position. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: Rest āĻ…ā§ąāĻ¸ā§āĻĨāĻžāϤ āĻĨāĻ•āĻž āĻŦāĻ¸ā§āĻ¤ā§ā§ąā§‡ āĻ¸ā§āĻĨāĻžāύ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤


Q10. A bicycle parked near a school is - āĻŦāĻŋāĻĻā§āϝāĻžāϞāϝāĻŧā§° āĻ“āϚ⧰āϤ ā§°āĻ–āĻž āϚāĻžāχāϕ⧇āϞāĻ–āύ -

A) In Motion | B) At Rest | C) Rotating | D) Running


Ans: B) At Rest.
Explanation: A parked bicycle is not moving. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: ā§°āĻ–āĻžāχ āĻĨā§‹ā§ąāĻž āϚāĻžāχāϕ⧇āϞāĻ–āύ āϚāϞāĻŋ āĻĨāĻ•āĻž āύāĻžāχ, āϏ⧇āϝāĻŧ⧇ āχ Rest-āϤ āφāϛ⧇āĨ¤


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