Momentum vs Force (āĻ­ā§°āĻŦ⧇āĻ— āĻŦāύāĻžāĻŽ āĻŦāϞ)





  • What is Force ? (āĻŦāϞ āĻ•āĻŋ ?) : View Paper

  • What is Momentum? (āĻ­ā§°āĻŦ⧇āĻ— āĻ•āĻŋ?) : View Paper

  • Difference between Momentum vs Force / āĻ­ā§°āĻŦ⧇āĻ— āφ⧰⧁ āĻŦāϞ⧰ āĻŽāĻžāϜ⧰ āĻĒāĻžā§°ā§āĻĨāĻ•ā§āϝ : View Paper




Momentum (āĻ­ā§°āĻŦ⧇āĻ—)



  • Quantity of motion of an object. (āϕ⧋āύ⧋ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ—āϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖāĨ¤)

  • Depends on mass and velocity.(āĻ­ā§° āφ⧰⧁ āĻŦ⧇āĻ—ā§° āĻ“āĻĒā§°āϤ āύāĻŋā§°ā§āĻ­ā§° āϕ⧰⧇āĨ¤)

  • SI Unit: kg·m/s

  • Formula: p = mv



Force (āĻŦāϞ)



  • A push or pull acting on an object. (āĻŦāĻ¸ā§āϤ⧁⧰ āĻ“āĻĒā§°āϤ āĻĒā§ā§°āϝāĻŧā§‹āĻ— āĻšā§‹ā§ąāĻž āϠ⧇āϞāĻž āĻŦāĻž āϟāĻžāύāĨ¤)

  • Changes the speed or direction of motion. (āĻŦāĻ¸ā§āϤ⧁⧰ āĻŦ⧇āĻ— āĻŦāĻž āĻ—āϤāĻŋā§° āĻĻāĻŋāĻļ āϏāϞāύāĻŋ āϕ⧰āĻŋāĻŦ āĻĒāĻžā§°ā§‡āĨ¤)

  • SI Unit: Newton (N)

  • Formula: F = ma


Note:



  • Momentum tells how much motion an object has. (āĻ­ā§°āĻŦ⧇āϗ⧇ āϕ⧋āύ⧋ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ—āϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖ āĻŦ⧁āϜāĻžāϝāĻŧāĨ¤)

  • Force is what changes that motion.(āĻŦāϞ⧇ āϏ⧇āχ āĻ—āϤāĻŋāĻ• āϏāϞāύāĻŋ āϕ⧰⧇āĨ¤)


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Momentum vs Force – MCQs


1. Momentum depends on which two quantities ? (āĻ­ā§°āĻŦ⧇āĻ— āϕ⧋āύ āĻĻ⧁āϟāĻž ā§°āĻžāĻļāĻŋā§° āĻ“āĻĒā§°āϤ āύāĻŋā§°ā§āĻ­ā§° āϕ⧰⧇ ?)


A) Mass and velocity  B) Mass and speed  C) Force and time  D) Distance and time


Ans: B) Mass and speed (mass and velocity)


Explanation: Momentum = mass × velocity. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻ­ā§°āĻŦ⧇āĻ— = āĻ­ā§° × āĻŦ⧇āĻ—āĨ¤


2. Which of the following is a force ? āϤāϞ⧰ āϕ⧋āύāĻŸā§‹ āĻŦāϞ ?


A) Momentum  B) Velocity  C) Push  D) Distance


Ans: C) Push


Explanation: A force is a push or a pull. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŦāϞ āĻšā§ˆāϛ⧇ āϠ⧇āϞāĻž āĻŦāĻž āϟāĻžāύāĨ¤


3. The SI unit of momentum is: āĻ­ā§°āĻŦ⧇āĻ—ā§° SI āĻāĻ•āĻ• āĻ•āĻŋ ?


A) Newton  B) kg·m/s  C) m/s²  D) Joule


Ans: B) kg·m/s


Explanation: Momentum is measured in kilogram metre per second. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻ­ā§°āĻŦ⧇āĻ—ā§° āĻāĻ•āĻ• kg·m/sāĨ¤


4. The SI unit of force is: āĻŦāϞ⧰ SI āĻāĻ•āĻ• āĻ•āĻŋ ?


A) kg·m/s  B) Newton (N)  C) Joule  D) Watt


Ans: B) Newton (N)


Explanation: Force is measured in newtons. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŦāϞ āύāĻŋāωāϟāύāϤ āĻœā§‹āĻ–āĻž āĻšāϝāĻŧāĨ¤


5. Which quantity changes the motion of an object ? āϕ⧋āύ ā§°āĻžāĻļāĻŋāϝāĻŧ⧇ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ—āϤāĻŋ āϏāϞāύāĻŋ āϕ⧰⧇ ?


A) Momentum  B) Force  C) Mass  D) Distance


Ans: B) Force


Explanation: Force can start, stop, speed up, slow down, or change direction. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŦāϞ⧇ āĻ—āϤāĻŋ āφ⧰āĻŽā§āĻ­, āĻŦāĻ¨ā§āϧ, āĻŦ⧇āĻ— āĻŦ⧃āĻĻā§āϧāĻŋ-āĻšā§ā§°āĻžāϏ āĻŦāĻž āĻĻāĻŋāĻļ āϏāϞāύāĻŋ āϕ⧰āĻŋāĻŦ āĻĒāĻžā§°ā§‡āĨ¤


6. A moving truck has more momentum than a bicycle mainly because it has: āϚāϞāĻŋ āĻĨāĻ•āĻž āϚāĻžāχāϕ⧇āϞāϤāĻ•ā§ˆ āĻāĻ–āύ āĻŸā§ā§°āĻžāϕ⧰ āĻ­ā§°āĻŦ⧇āĻ— āĻŦ⧇āĻ›āĻŋ āĻšā§‹ā§ąāĻžā§° āĻŽā§‚āϞ āĻ•āĻžā§°āĻŖ āĻ•āĻŋ ?


A) Less force  B) Greater mass  C) Less speed  D) Shorter distance


Ans: B) Greater mass


Explanation: Greater mass generally gives greater momentum (for similar speeds). āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻāϕ⧇ āϧ⧰āĻŖā§° āĻŦ⧇āĻ—āϤ āĻ­ā§° āĻŦ⧇āĻ›āĻŋ āĻš'āϞ⧇ āĻ­ā§°āĻŦ⧇āĻ—ā§‹ āĻŦ⧇āĻ›āĻŋ āĻšāϝāĻŧāĨ¤


7. Which formula represents momentum ? āϕ⧋āύ āϏ⧂āĻ¤ā§ā§°āχ āĻ­ā§°āĻŦ⧇āĻ— āĻĒā§ā§°āĻ•āĻžāĻļ āϕ⧰⧇ ?


A) F = ma  B) p = mv  C) v = d/t  D) W = Fs


Ans: B) p = mv


Explanation: Momentum equals mass × velocity. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻ­ā§°āĻŦ⧇āĻ— = āĻ­ā§° × āĻŦ⧇āĻ—āĨ¤


8. Which formula represents force ? āϕ⧋āύ āϏ⧂āĻ¤ā§ā§°āχ āĻŦāϞ āĻĒā§ā§°āĻ•āĻžāĻļ āϕ⧰⧇ ?


A) p = mv  B) F = ma  C) v = d/t  D) P = W/t


Ans: B) F = ma 


Explanation: Force equals mass × acceleration. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŦāϞ = āĻ­ā§° × āĻ¤ā§āĻŦā§°āĻŖāĨ¤













2 Marks PYQ


1. Define Momentum. āĻ­ā§°āĻŦ⧇āĻ— (Momentum) āĻ•āĻžāĻ• āĻŦā§‹āϞ⧇ ?


Ans / āωāĻ¤ā§āϤ⧰: Momentum is the quantity of motion of an object. It is the product of mass and velocity. (āĻ­ā§°āĻŦ⧇āĻ— āĻšā§ˆāϛ⧇ āϕ⧋āύ⧋ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ—āϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖāĨ¤ āχ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ­ā§° āφ⧰⧁ āĻŦ⧇āĻ—ā§° āϗ⧁āĻŖāĻĢāϞāĨ¤)


Formula / āϏ⧂āĻ¤ā§ā§°: p = mv


2. Define Force. āĻŦāϞ (Force) āĻ•āĻžāĻ• āĻŦā§‹āϞ⧇ ?

Ans / āωāĻ¤ā§āϤ⧰: Force is a push or pull that changes or tends to change the state of rest or motion of an object. (āĻŦāϞ āĻšā§ˆāϛ⧇ āϠ⧇āϞāĻž āĻŦāĻž āϟāĻžāύ, āϝāĻŋāϝāĻŧ⧇ āϕ⧋āύ⧋ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ¸ā§āĻĨāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻž āĻŦāĻž āĻ—āϤāĻŋā§° āĻ…ā§ąāĻ¸ā§āĻĨāĻž āϏāϞāύāĻŋ āϕ⧰⧇ āĻŦāĻž āϏāϞāύāĻŋ āϕ⧰āĻŋāĻŦāϞ⧈ āĻšā§‡āĻˇā§āϟāĻž āϕ⧰⧇āĨ¤)


3. Write any two differences between Momentum and Force. (āĻ­ā§°āĻŦ⧇āĻ— āφ⧰⧁ āĻŦāϞ⧰ āĻŽāĻžāϜāϤ āϝāĻŋāϕ⧋āύ⧋ āĻĻ⧁āϟāĻž āĻĒāĻžā§°ā§āĻĨāĻ•ā§āϝ āϞāĻŋāĻ–āĻžāĨ¤)

Momentum (āĻ­ā§°āĻŦ⧇āĻ—):



  • It is the quantity of motion. / āχ āĻ—āϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖāĨ¤

  • Depends on mass and velocity. / āĻ­ā§° āφ⧰⧁ āĻŦ⧇āĻ—ā§° āĻ“āĻĒā§°āϤ āύāĻŋā§°ā§āĻ­ā§° āϕ⧰⧇āĨ¤


Force (āĻŦāϞ):



  • It is a push or pull. / āχ āϠ⧇āϞāĻž āĻŦāĻž āϟāĻžāύāĨ¤

  • It changes the motion of an object. / āχ āĻŦāĻ¸ā§āϤ⧁⧰ āĻ—āϤāĻŋ āϏāϞāύāĻŋ āϕ⧰⧇āĨ¤


4. Write the SI units of Momentum and Force. āĻ­ā§°āĻŦ⧇āĻ— āφ⧰⧁ āĻŦāϞ⧰ SI āĻāĻ•āĻ• āϞāĻŋāĻ–āĻžāĨ¤

Ans / āωāĻ¤ā§āϤ⧰:



  • Momentum: kg·m/s. āĻ­ā§°āĻŦ⧇āĻ—: kg·m/s

  • Force: Newton (N). āĻŦāϞ: āύāĻŋāωāϟāύ (N)


5. Write the formula of Momentum and Force. āĻ­ā§°āĻŦ⧇āĻ— āφ⧰⧁ āĻŦāϞ⧰ āϏ⧂āĻ¤ā§ā§° āϞāĻŋāĻ–āĻžāĨ¤

Ans / āωāĻ¤ā§āϤ⧰:



  • Momentum: p = mv. āĻ­ā§°āĻŦ⧇āĻ—: p = mv

  • Force: F = ma . āĻŦāϞ: F = ma