Question Paper
Class / Subject: Class 9 (ICSE) · Physics
Chapter: Chapter 4 — Chapter 4: Pressure in Fluids and Atmospheric Pressure
Time Allowed: 32 minutes
Max Marks: 16
1. What is the formula for fluid pressure? [1]
(A) P = h × ρ × g
(B) P = h + ρ + g
(C) P = h ÷ ρ ÷ g
(D) P = h × ρ ÷ g
2. What does 'h' represent in the pressure formula? [1]
(A) Depth
(B) Height of an object
(C) Weight
(D) Volume
3. What does Pascal's Law state? [1]
(A) Pressure transmits equally in all directions in an enclosed fluid
(B) Pressure only acts downward
(C) Pressure decreases with depth
(D) No relationship exists
4. Where is Pascal's Law applied? [1]
(A) Hydraulic systems
(B) Only in weather forecasting
(C) Only in cooking
(D) Nowhere practical
5. What causes atmospheric pressure? [1]
(A) The weight of air above us
(B) Only gravity from the Moon
(C) Only wind
(D) Nothing causes it
6. What happens to atmospheric pressure at high altitude? [1]
(A) It decreases
(B) It increases
(C) It stays the same
(D) It becomes zero immediately
7. Why do ears pop at high altitude? [1]
(A) Due to changing atmospheric pressure
(B) Due to temperature only
(C) Due to wind only
(D) No specific reason
8. Why study pressure in fluids and atmosphere? [1]
(A) To explain everyday phenomena and hydraulic systems
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is the formula for fluid pressure? [1]
(A) P = h × ρ × g
(B) P = h + ρ + g
(C) P = h ÷ ρ ÷ g
(D) P = h × ρ ÷ g
10. What does 'h' represent in the pressure formula? [1]
(A) Depth
(B) Height of an object
(C) Weight
(D) Volume
11. What does Pascal's Law state? [1]
(A) Pressure transmits equally in all directions in an enclosed fluid
(B) Pressure only acts downward
(C) Pressure decreases with depth
(D) No relationship exists
12. Where is Pascal's Law applied? [1]
(A) Hydraulic systems
(B) Only in weather forecasting
(C) Only in cooking
(D) Nowhere practical
13. What causes atmospheric pressure? [1]
(A) The weight of air above us
(B) Only gravity from the Moon
(C) Only wind
(D) Nothing causes it
14. What happens to atmospheric pressure at high altitude? [1]
(A) It decreases
(B) It increases
(C) It stays the same
(D) It becomes zero immediately
15. Why do ears pop at high altitude? [1]
(A) Due to changing atmospheric pressure
(B) Due to temperature only
(C) Due to wind only
(D) No specific reason
16. Why study pressure in fluids and atmosphere? [1]
(A) To explain everyday phenomena and hydraulic systems
(B) No reason
(C) It's not useful
(D) Only for tests