Question Paper
Class / Subject: Class 10 (ICSE) · Physics
Chapter: Chapter 3 — Chapter 3: Machines
Time Allowed: 32 minutes
Max Marks: 16
1. What is Mechanical Advantage? [1]
(A) Load/Effort
(B) Effort/Load
(C) Load×Effort
(D) Load+Effort
2. What is Velocity Ratio? [1]
(A) Effort distance/Load distance
(B) Load distance/Effort distance
(C) Effort×Load
(D) Effort+Load
3. What is the efficiency formula? [1]
(A) (MA/VR) × 100%
(B) (VR/MA) × 100%
(C) MA×VR
(D) MA+VR
4. Why is efficiency always less than 100%? [1]
(A) Due to friction and energy losses
(B) Machines are perfect
(C) No reason
(D) Efficiency is always 100%
5. What classifies types of levers? [1]
(A) Fulcrum, load, effort positions
(B) Only the material used
(C) Only the size
(D) Nothing specific
6. What are the two types of pulleys? [1]
(A) Fixed and movable
(B) Only fixed
(C) Only movable
(D) Neither type exists
7. What is an example of a simple machine? [1]
(A) Inclined plane
(B) A computer
(C) A car engine
(D) A phone
8. Why learn about machines? [1]
(A) To understand how they make work easier
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is Mechanical Advantage? [1]
(A) Load/Effort
(B) Effort/Load
(C) Load×Effort
(D) Load+Effort
10. What is Velocity Ratio? [1]
(A) Effort distance/Load distance
(B) Load distance/Effort distance
(C) Effort×Load
(D) Effort+Load
11. What is the efficiency formula? [1]
(A) (MA/VR) × 100%
(B) (VR/MA) × 100%
(C) MA×VR
(D) MA+VR
12. Why is efficiency always less than 100%? [1]
(A) Due to friction and energy losses
(B) Machines are perfect
(C) No reason
(D) Efficiency is always 100%
13. What classifies types of levers? [1]
(A) Fulcrum, load, effort positions
(B) Only the material used
(C) Only the size
(D) Nothing specific
14. What are the two types of pulleys? [1]
(A) Fixed and movable
(B) Only fixed
(C) Only movable
(D) Neither type exists
15. What is an example of a simple machine? [1]
(A) Inclined plane
(B) A computer
(C) A car engine
(D) A phone
16. Why learn about machines? [1]
(A) To understand how they make work easier
(B) No reason
(C) It's not useful
(D) Only for tests