Momentum vs Force (āĻā§°āĻŦā§āĻ āĻŦāύāĻžāĻŽ āĻŦāϞ)
- What is Force ? (āĻŦāϞ āĻāĻŋ ?) : View Paper
- What is Momentum? (āĻā§°āĻŦā§āĻ āĻāĻŋ?) : View Paper
- Difference between Momentum vs Force / āĻā§°āĻŦā§āĻ āĻā§°ā§ āĻŦāϞ⧰ āĻŽāĻžāĻā§° āĻĒāĻžā§°ā§āĻĨāĻā§āϝ : View Paper
Momentum (āĻā§°āĻŦā§āĻ)
- Quantity of motion of an object. (āĻā§āύ⧠āĻŦāϏā§āϤā§ā§° āĻāϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖāĨ¤)
- Depends on mass and velocity.(āĻā§° āĻā§°ā§ āĻŦā§āĻā§° āĻāĻĒā§°āϤ āύāĻŋā§°ā§āĻā§° āĻā§°ā§āĨ¤)
- SI Unit: kg·m/s
- Formula: p = mv
Force (āĻŦāϞ)
- A push or pull acting on an object. (āĻŦāϏā§āϤā§ā§° āĻāĻĒā§°āϤ āĻĒā§ā§°āϝāĻŧā§āĻ āĻšā§ā§ąāĻž āĻ ā§āϞāĻž āĻŦāĻž āĻāĻžāύāĨ¤)
- Changes the speed or direction of motion. (āĻŦāϏā§āϤā§ā§° āĻŦā§āĻ āĻŦāĻž āĻāϤāĻŋā§° āĻĻāĻŋāĻļ āϏāϞāύāĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§āĨ¤)
- SI Unit: Newton (N)
- Formula: F = ma
Note:
- Momentum tells how much motion an object has. (āĻā§°āĻŦā§āĻā§ āĻā§āύ⧠āĻŦāϏā§āϤā§ā§° āĻāϤāĻŋā§° āĻĒā§°āĻŋāĻŽāĻžāĻŖ āĻŦā§āĻāĻžāϝāĻŧāĨ¤)
- Force is what changes that motion.(āĻŦāϞ⧠āϏā§āĻ āĻāϤāĻŋāĻ āϏāϞāύāĻŋ āĻā§°ā§āĨ¤)
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Momentum vs Force – MCQs
1. Momentum depends on which two quantities ? (āĻā§°āĻŦā§āĻ āĻā§āύ āĻĻā§āĻāĻž ā§°āĻžāĻļāĻŋā§° āĻāĻĒā§°āϤ āύāĻŋā§°ā§āĻā§° āĻā§°ā§ ?)
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§āϝāĻžāĻā§āϝāĻž: āĻā§°āĻŦā§āĻ = āĻā§° × āĻŦā§āĻāĨ¤
2. Which of the following is a force ? āϤāϞ⧰ āĻā§āύāĻā§ āĻŦāϞ ?
A) Momentum B) Velocity C) Push D) Distance
Ans: C) Push
Explanation: A force is a push or a pull. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻŦāϞ āĻšā§āĻā§ āĻ ā§āϞāĻž āĻŦāĻž āĻāĻžāύāĨ¤
3. The SI unit of momentum is: āĻā§°āĻŦā§āĻā§° SI āĻāĻāĻ āĻāĻŋ ?
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§āϝāĻžāĻā§āϝāĻž: āĻā§°āĻŦā§āĻā§° āĻāĻāĻ kg·m/sāĨ¤
4. The SI unit of force is: āĻŦāϞ⧰ SI āĻāĻāĻ āĻāĻŋ ?
A) kg·m/s B) Newton (N) C) Joule D) Watt
Ans: B) Newton (N)
Explanation: Force is measured in newtons. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻŦāϞ āύāĻŋāĻāĻāύāϤ āĻā§āĻāĻž āĻšāϝāĻŧāĨ¤
5. Which quantity changes the motion of an object ? āĻā§āύ ā§°āĻžāĻļāĻŋāϝāĻŧā§ āĻŦāϏā§āϤā§ā§° āĻāϤāĻŋ āϏāϞāύāĻŋ āĻā§°ā§ ?
A) Momentum B) Force C) Mass D) Distance
Ans: B) Force
Explanation: Force can start, stop, speed up, slow down, or change direction. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻŦāϞ⧠āĻāϤāĻŋ āĻā§°āĻŽā§āĻ, āĻŦāύā§āϧ, āĻŦā§āĻ āĻŦā§āĻĻā§āϧāĻŋ-āĻšā§ā§°āĻžāϏ āĻŦāĻž āĻĻāĻŋāĻļ āϏāϞāύāĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§āĨ¤
6. A moving truck has more momentum than a bicycle mainly because it has: āĻāϞāĻŋ āĻĨāĻāĻž āĻāĻžāĻāĻā§āϞāϤāĻā§ āĻāĻāύ āĻā§ā§°āĻžāĻā§° āĻā§°āĻŦā§āĻ āĻŦā§āĻāĻŋ āĻšā§ā§ąāĻžā§° āĻŽā§āϞ āĻāĻžā§°āĻŖ āĻāĻŋ ?
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§āϝāĻžāĻā§āϝāĻž: āĻāĻā§ āϧ⧰āĻŖā§° āĻŦā§āĻāϤ āĻā§° āĻŦā§āĻāĻŋ āĻš'āϞ⧠āĻā§°āĻŦā§āĻā§ āĻŦā§āĻāĻŋ āĻšāϝāĻŧāĨ¤
7. Which formula represents momentum ? āĻā§āύ āϏā§āϤā§ā§°āĻ āĻā§°āĻŦā§āĻ āĻĒā§ā§°āĻāĻžāĻļ āĻā§°ā§ ?
A) F = ma B) p = mv C) v = d/t D) W = Fs
Ans: B) p = mv
Explanation: Momentum equals mass × velocity. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻā§°āĻŦā§āĻ = āĻā§° × āĻŦā§āĻāĨ¤
8. Which formula represents force ? āĻā§āύ āϏā§āϤā§ā§°āĻ āĻŦāϞ āĻĒā§ā§°āĻāĻžāĻļ āĻā§°ā§ ?
A) p = mv B) F = ma C) v = d/t D) P = W/t
Ans: B) F = ma
Explanation: Force equals mass × acceleration. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻŦāϞ = āĻā§° × āϤā§āĻŦā§°āĻŖāĨ¤