If each body in the universe attracts every other body, why don’t two books kept on a table come towards each other and collide?

Important Questions on Gravitation

EASY

9th Manipur Board

IMPORTANT

Science for Class 9>Chapter 8 - Gravitation>EXERCISES>Q 4

Distinguish between

‘ G ’

and ‘

g

’.

HARD

9th Manipur Board

IMPORTANT

Science for Class 9>Chapter 8 - Gravitation>EXERCISES>Q 5

Starting from Newton’s law of gravitation, show that the value of ‘

g

’ decreases as one goes above the earth’s surface.

MEDIUM

9th Manipur Board

IMPORTANT

Science for Class 9>Chapter 8 - Gravitation>EXERCISES>Q 6

We know that the earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force which is greater or smaller or the same as the force with which the moon attracts the earth? Give reason for your answer.

MEDIUM

9th Manipur Board

IMPORTANT

Science for Class 9>Chapter 8 - Gravitation>EXERCISES>Q 7

From the universal law of gravitation we have learnt that the moon attracts the earth, why does the earth not move towards the moon?

MEDIUM

9th Manipur Board

IMPORTANT

Science for Class 9>Chapter 8 - Gravitation>EXERCISES>Q 8

What will happen to the force between two bodies, if the mass of one of them is doubled?

MEDIUM

9th Manipur Board