Question Paper
Class / Subject: Class 9 (SSC) · Science and Technology (विज्ञान आणि तंत्रज्ञान)
Chapter: Chapter 1 — Chapter 1: Laws of Motion
Time Allowed: 32 minutes
Max Marks: 16
1. What does Newton's First Law state? [1]
(A) An object stays at rest or motion unless forced
(B) Force equals mass times acceleration
(C) Every action has an equal reaction
(D) None of these
2. What is another name for the First Law? [1]
(A) The law of inertia
(B) The law of reaction
(C) The law of gravity
(D) The law of energy
3. What does Newton's Second Law state? [1]
(A) F=ma
(B) Objects stay at rest always
(C) Every action has a reaction
(D) Energy cannot be created
4. What does Newton's Third Law state? [1]
(A) Every action has an equal, opposite reaction
(B) F=ma
(C) Objects stay at rest
(D) None of these
5. What does inertia describe? [1]
(A) Resistance to change in motion
(B) The force applied to an object
(C) The reaction force only
(D) Energy conservation
6. Why are seatbelts necessary? [1]
(A) Due to inertia during sudden stops
(B) Due to gravity only
(C) Due to friction only
(D) No specific reason
7. How do rockets use Newton's Third Law? [1]
(A) Expelling gas creates an opposite thrust force
(B) They ignore all forces
(C) Only gravity propels them
(D) No law applies to rockets
8. Why learn Newton's laws of motion? [1]
(A) They explain everyday motion phenomena
(B) No reason
(C) It's not useful
(D) Only for tests
9. What does Newton's First Law state? [1]
(A) An object stays at rest or motion unless forced
(B) Force equals mass times acceleration
(C) Every action has an equal reaction
(D) None of these
10. What is another name for the First Law? [1]
(A) The law of inertia
(B) The law of reaction
(C) The law of gravity
(D) The law of energy
11. What does Newton's Second Law state? [1]
(A) F=ma
(B) Objects stay at rest always
(C) Every action has a reaction
(D) Energy cannot be created
12. What does Newton's Third Law state? [1]
(A) Every action has an equal, opposite reaction
(B) F=ma
(C) Objects stay at rest
(D) None of these
13. What does inertia describe? [1]
(A) Resistance to change in motion
(B) The force applied to an object
(C) The reaction force only
(D) Energy conservation
14. Why are seatbelts necessary? [1]
(A) Due to inertia during sudden stops
(B) Due to gravity only
(C) Due to friction only
(D) No specific reason
15. How do rockets use Newton's Third Law? [1]
(A) Expelling gas creates an opposite thrust force
(B) They ignore all forces
(C) Only gravity propels them
(D) No law applies to rockets
16. Why learn Newton's laws of motion? [1]
(A) They explain everyday motion phenomena
(B) No reason
(C) It's not useful
(D) Only for tests