MEDIUM
9th CBSE
IMPORTANT
Earn 100

The distance of a planet from the sun is 40 times that of the earth. What is the ratio of their time periods of revolution around the sun?

Important Questions on Gravitation

MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 02>Q 4
Suppose a planet exists whose mass and radius both are half that of the earth. The acceleration due to gravity on the surface of this planet will be double? Justify.
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 02>Q 5
Acceleration due to gravity of the earth is less at the equator than at poles. Why?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 02>Q 6
A body drops down a tower and reaches the ground in 0.6 s. If g=10 m/s2, then find the height of the tower.
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 03>Q 1
A body of mass 10 kg is taken to the centre of the earth. What will be its mass there?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 03>Q 2
How is weight related to mass? Is weight of a body constant?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 03>Q 3
What will be the weight of an object of mass 175 kg at the centre of the earth?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 03>Q 4
Mitali weighs 750 N on the earth. On the planet Mars, the force of gravity is 38 % of that of the earth. How much will Mitali weigh on the Mars?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 10 - Gravitation>Check Point 03>Q 5
Weight of a girl on the earth’s surface is 66 N. Find out her weight on the moon.