Question Paper
Class / Subject: Class 9 (CBSE) · Science
Chapter: Chapter 9 — Chapter 9: Gravitation
Time Allowed: 15 minutes
Max Marks: 6
1. Gravitational force is inversely proportional to the: [1]
(A) square of the distance
(B) mass
(C) square of the mass
(D) cube of the distance
2. The Moon orbits the Earth because of: [1]
(A) Earth's gravitational pull
(B) the Moon's own engine
(C) solar wind
(D) magnetic attraction
3. Ocean tides are primarily caused by: [1]
(A) the Moon's gravitational pull
(B) wind currents only
(C) Earth's rotation only
(D) underwater earthquakes
4. Weight is calculated as: [1]
(A) mass × gravitational acceleration
(B) mass only
(C) mass ÷ gravitational acceleration
(D) mass × time
5. An astronaut's weight is less on the Moon than on Earth because: [1]
(A) the Moon's gravity is weaker
(B) the astronaut's mass decreases on the Moon
(C) there is no gravity on the Moon
(D) the astronaut becomes lighter in mass
6. In a true vacuum, objects of different masses fall: [1]
(A) at the same rate
(B) at different rates based on mass
(C) only heavy objects fall
(D) only light objects fall