Question Paper
Class / Subject: Class 8 (SSC) · Science (सामान्य विज्ञान)
Chapter: Chapter 3 — Chapter 3: Force and Pressure
Time Allowed: 32 minutes
Max Marks: 16
1. What happens with balanced forces? [1]
(A) No change in motion
(B) Acceleration occurs
(C) Motion stops immediately
(D) Object disappears
2. What happens with unbalanced forces? [1]
(A) Acceleration (speed/direction change)
(B) No effect at all
(C) Object stays perfectly still
(D) Object disappears
3. What is friction? [1]
(A) A force opposing motion between surfaces
(B) A force that speeds up motion always
(C) No force at all
(D) Only found in liquids
4. Is friction always harmful? [1]
(A) No, it can be useful too
(B) Yes, always harmful
(C) It has no effect ever
(D) Friction doesn't exist
5. What is the pressure formula? [1]
(A) P=F/A
(B) P=F×A
(C) P=F+A
(D) P=F-A
6. Why do sharp objects exert more pressure? [1]
(A) Smaller area for the same force
(B) Larger area for the same force
(C) They exert less force
(D) No relationship exists
7. What causes atmospheric pressure? [1]
(A) The weight of air
(B) Only wind
(C) Only temperature
(D) Only sunlight
8. Why learn about force and pressure? [1]
(A) To understand motion and pressure phenomena
(B) No reason
(C) It's not useful
(D) Only for tests
9. What happens with balanced forces? [1]
(A) No change in motion
(B) Acceleration occurs
(C) Motion stops immediately
(D) Object disappears
10. What happens with unbalanced forces? [1]
(A) Acceleration (speed/direction change)
(B) No effect at all
(C) Object stays perfectly still
(D) Object disappears
11. What is friction? [1]
(A) A force opposing motion between surfaces
(B) A force that speeds up motion always
(C) No force at all
(D) Only found in liquids
12. Is friction always harmful? [1]
(A) No, it can be useful too
(B) Yes, always harmful
(C) It has no effect ever
(D) Friction doesn't exist
13. What is the pressure formula? [1]
(A) P=F/A
(B) P=F×A
(C) P=F+A
(D) P=F-A
14. Why do sharp objects exert more pressure? [1]
(A) Smaller area for the same force
(B) Larger area for the same force
(C) They exert less force
(D) No relationship exists
15. What causes atmospheric pressure? [1]
(A) The weight of air
(B) Only wind
(C) Only temperature
(D) Only sunlight
16. Why learn about force and pressure? [1]
(A) To understand motion and pressure phenomena
(B) No reason
(C) It's not useful
(D) Only for tests