Push and Pull Principle (āĻ ā§āĻ˛āĻž āĻā§°ā§ āĻāĻ¨āĻž āĻ¨ā§āĻ¤āĻŋ)
Push and Pull Principle (āĻ ā§āĻ˛āĻž āĻā§°ā§ āĻāĻ¨āĻž āĻ¨ā§āĻ¤āĻŋ)
Definition / āĻ¸āĻāĻā§āĻāĻž: A push or a pull is called Force. (āĻ ā§āĻ˛āĻž āĻŦāĻž āĻāĻ¨āĻžāĻ āĻŦāĻ˛ (Force) āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤)
What can Force do ? / āĻŦāĻ˛ā§ āĻāĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§ ?
Force can move an object, stop it, or change its direction. (āĻŦāĻ˛ā§° āĻ¸āĻšāĻžāĻ¯āĻŧāĻ¤ āĻā§āĻ¨ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻāĻ˛āĻžāĻŦ āĻĒāĻžā§°āĻŋ, ā§°āĻāĻžāĻŦ āĻĒāĻžā§°āĻŋ āĻŦāĻž āĻāĻ¯āĻŧāĻžā§° āĻāĻ¤āĻŋā§° āĻĻāĻŋāĻļ āĻ¸āĻ˛āĻ¨āĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°āĻŋāĨ¤)
Push / āĻ ā§āĻ˛āĻž:
i. Push moves the car forward. (āĻ ā§āĻ˛āĻŋāĻ˛ā§ āĻāĻžāĻĄāĻŧā§ āĻāĻāĻ˛ā§ āĻ¯āĻžāĻ¯āĻŧāĨ¤)
ii. We push a door to open it. (āĻĻā§°ā§āĻāĻž āĻā§āĻ˛āĻŋāĻŦāĻ˛ā§ āĻāĻŽāĻŋ āĻāĻ¯āĻŧāĻžāĻ āĻ ā§āĻ˛ā§āĨ¤)
Pull / āĻāĻ¨āĻž
i. Pull brings the wagon toward us. (āĻāĻžāĻ¨āĻŋāĻ˛ā§ āĻ ā§āĻ˛āĻžāĻāĻžāĻĄāĻŧā§ (Wagon) āĻāĻŽāĻžā§° āĻĢāĻžāĻ˛ā§ āĻāĻšā§āĨ¤)
ii. We pull a drawer to open it. (āĻĄā§ā§°āĻ¯āĻŧāĻžā§° āĻā§āĻ˛āĻŋāĻŦāĻ˛ā§ āĻāĻŽāĻŋ āĻāĻ¯āĻŧāĻžāĻ āĻāĻžāĻ¨ā§āĨ¤)
Direction / āĻĻāĻŋāĻļ
- Push(āĻ ā§āĻ˛āĻž) → Away from us (āĻāĻŽāĻžā§° āĻĒā§°āĻž āĻāĻāĻ¤ā§°āĻ˛ā§)
- Pull (āĻāĻ¨āĻž) → Toward us (āĻāĻŽāĻžā§° āĻĢāĻžāĻ˛ā§)
Examples / āĻāĻĻāĻžāĻšā§°āĻŖ
Ex 1: When we kick a ball, we push it. (āĻāĻŽāĻŋ āĻŦāĻ˛āĻ¤ āĻ˛āĻžāĻĨāĻŋ āĻŽāĻžā§°āĻŋāĻ˛ā§, āĻāĻŽāĻŋ āĻŦāĻ˛āĻā§ āĻ ā§āĻ˛ā§) (Push)āĨ¤
Ex 2: When we drag a bag, we pull it. (āĻāĻŽāĻŋ āĻŦā§āĻ āĻāĻžāĻ¨āĻŋāĻ˛ā§, āĻāĻŽāĻŋ āĻāĻ¯āĻŧāĻžāĻ āĻāĻžāĻ¨ā§) (Pull)āĨ¤
Remember:
Push = Move Away = (āĻ ā§āĻ˛āĻž = āĻāĻāĻ¤ā§°āĻ˛ā§ āĻ ā§āĻ˛āĻž)
Pull = Bring Near = (āĻāĻ¨āĻž = āĻ¨āĻŋāĻā§° āĻĢāĻžāĻ˛ā§ āĻāĻ¨āĻž)
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MCQs – Push and Pull Principle (āĻ ā§āĻ˛āĻž āĻā§°ā§ āĻāĻ¨āĻž āĻ¨ā§āĻ¤āĻŋ)
Q1. A push or a pull is called - āĻ ā§āĻ˛āĻž āĻŦāĻž āĻāĻ¨āĻžāĻ āĻāĻŋ āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧ ?
A) Energy | B) Force | C) Motion | D) Speed
Ans: B) Force
Explanation: A push or a pull is called Force. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ ā§āĻ˛āĻž āĻŦāĻž āĻāĻ¨āĻžāĻ āĻŦāĻ˛ (Force) āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
Q2. Force can - āĻŦāĻ˛ā§ āĻāĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§ ?
A) Move an object | B) Stop an object | C) Change its direction | D) All of these
Ans: D) All of these
Explanation: Force can move, stop, or change the direction of an object. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻ˛ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻāĻ˛āĻžāĻŦ āĻĒāĻžā§°ā§, ā§°āĻāĻžāĻŦ āĻĒāĻžā§°ā§ āĻā§°ā§ āĻĻāĻŋāĻļ āĻ¸āĻ˛āĻ¨āĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§āĨ¤
Q3. Which action is an example of Push ? āĻ¤āĻ˛ā§° āĻā§āĻ¨āĻā§ āĻ ā§āĻ˛āĻžā§° (Push) āĻāĻĻāĻžāĻšā§°āĻŖ ?
A) Pulling a rope | B) Opening a drawer | C) Pushing a door | D) Dragging a bag
Ans: C) Pushing a door
Explanation: We push a door to open it. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĻā§°ā§āĻāĻž āĻā§āĻ˛āĻŋāĻŦāĻ˛ā§ āĻāĻŽāĻŋ āĻ ā§āĻ˛ā§āĨ¤
Q4. Which action is an example of Pull ? āĻ¤āĻ˛ā§° āĻā§āĻ¨āĻā§ āĻāĻ¨āĻžā§° (Pull) āĻāĻĻāĻžāĻšā§°āĻŖ ?
A) Kicking a ball | B) Pushing a car | C) Pulling a drawer | D) Closing a door by pushing
Ans: C) Pulling a drawer
Explanation: A drawer is opened by pulling it. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĄā§ā§°āĻ¯āĻŧāĻžā§° āĻāĻžāĻ¨āĻŋ āĻā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
Q5. Push moves an object - āĻ ā§āĻ˛āĻŋāĻ˛ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻā§āĻ¨ āĻĻāĻŋāĻļāĻ˛ā§ āĻ¯āĻžāĻ¯āĻŧ ?
A) Toward us | B) Away from us | C) Upward | D) Downward
Ans: B) Away from us
Explanation: Push moves an object away from us. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ ā§āĻ˛āĻŋāĻ˛ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻāĻŽāĻžā§° āĻĒā§°āĻž āĻāĻāĻ¤ā§°āĻ˛ā§ āĻ¯āĻžāĻ¯āĻŧāĨ¤
Q6. Pull brings an object - āĻāĻžāĻ¨āĻŋāĻ˛ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻā§āĻ¨ āĻĻāĻŋāĻļāĻ˛ā§ āĻāĻšā§ ?
A) Away from us | B) Toward us | C) Upward | D) Backward
Ans: B) Toward us
Explanation: Pull brings an object toward us. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻžāĻ¨āĻŋāĻ˛ā§ āĻŦāĻ¸ā§āĻ¤ā§ āĻāĻŽāĻžā§° āĻĢāĻžāĻ˛ā§ āĻāĻšā§āĨ¤
Q7. Kicking a football is an example of - āĻĢā§āĻāĻŦāĻ˛āĻ¤ āĻ˛āĻžāĻĨāĻŋ āĻŽā§°āĻž āĻāĻŋāĻšā§° āĻāĻĻāĻžāĻšā§°āĻŖ ?
A) Pull | B) Push | C) Rotation | D) Friction
Ans: B) Push
Explanation: Kicking a ball pushes it away. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻ˛āĻ¤ āĻ˛āĻžāĻĨāĻŋ āĻŽāĻžā§°āĻŋāĻ˛ā§ āĻŦāĻ˛āĻā§ āĻ ā§āĻ˛āĻŋ āĻāĻāĻ¤ā§°āĻ˛ā§ āĻ¯āĻžāĻ¯āĻŧāĨ¤
Q8. Dragging a school bag is an example of - āĻ¸ā§āĻā§āĻ˛ āĻŦā§āĻ āĻāĻ¨āĻž āĻāĻŋāĻšā§° āĻāĻĻāĻžāĻšā§°āĻŖ ?
A) Push | B) Pull | C) Speed | D) Rest
Ans: B) Pull
Explanation: We drag a bag by pulling it. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§āĻ āĻāĻžāĻ¨āĻŋ āĻ¨āĻŋāĻ¯āĻŧāĻž āĻšāĻ¯āĻŧāĨ¤
Q9. Which of the following changes the direction of an object ? āĻ¤āĻ˛ā§° āĻā§āĻ¨āĻā§ā§ąā§ āĻŦāĻ¸ā§āĻ¤ā§ā§° āĻĻāĻŋāĻļ āĻ¸āĻ˛āĻ¨āĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§ ?
A) Heat | B) Force | C) Light | D) Sound
Ans: B) Force
Explanation: Force can change the direction of motion. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻ˛ā§ āĻāĻ¤āĻŋā§° āĻĻāĻŋāĻļ āĻ¸āĻ˛āĻ¨āĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°ā§āĨ¤
Q10. Which statement is correct ? āĻā§āĻ¨āĻā§ āĻŦāĻā§āĻ¤āĻŦā§āĻ¯ āĻ¸āĻ āĻŋāĻ ?
A) Push brings an object toward us. B) Pull moves an object away from us. C) Force is a push or a pull. D) Force cannot stop a moving object.
Ans: C) Force is a push or a pull.
Explanation: Force is defined as a push or a pull. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻ˛ āĻŽāĻžāĻ¨ā§āĻ āĻ ā§āĻ˛āĻž āĻŦāĻž āĻāĻ¨āĻžāĨ¤
Q11. We push a car to make it - āĻāĻžāĻĄāĻŧā§āĻāĻ¨āĻ āĻ ā§āĻ˛āĻŋ āĻāĻŋ āĻā§°ā§āĻ ?
A) Move forward | B) Move backward | C) Stop | D) Rotate
Ans: A) Move forward
Explanation: Pushing a car makes it move forward. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻžāĻĄāĻŧā§ āĻ ā§āĻ˛āĻŋāĻ˛ā§ āĻāĻāĻ˛ā§ āĻ¯āĻžāĻ¯āĻŧāĨ¤
Q12. Which one is NOT an example of Pull ? āĻ¤āĻ˛ā§° āĻā§āĻ¨āĻā§ Pull (āĻāĻ¨āĻž)-ā§° āĻāĻĻāĻžāĻšā§°āĻŖ āĻ¨āĻšāĻ¯āĻŧ ?
A) Pulling a drawer | B) Dragging a bag | C) Pulling a wagon | D) Pushing a door
Ans: D) Pushing a door
Explanation: Pushing a door is an example of Push, not Pull. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĻā§°ā§āĻāĻž āĻ ā§āĻ˛āĻž Push-ā§° āĻāĻĻāĻžāĻšā§°āĻŖ, Pull-ā§° āĻ¨āĻšāĻ¯āĻŧāĨ¤
2 Marks PYQs / āĻ¸āĻŽā§āĻāĻžā§ąā§āĻ¯ ā§¨ āĻ¨āĻŽā§āĻŦā§°ā§° āĻĒā§ā§°āĻļā§āĻ¨
Q1. What is Force ? āĻŦāĻ˛ (Force) āĻŦā§āĻ˛āĻŋāĻ˛ā§ āĻāĻŋ āĻŦā§āĻāĻž ?
Ans / āĻāĻ¤ā§āĻ¤ā§°: A push or a pull is called Force. (āĻ ā§āĻ˛āĻž āĻŦāĻž āĻāĻ¨āĻžāĻ āĻŦāĻ˛ (Force) āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤)