Forum

Gravitation

What happens to the force between two objects, if
(i) the mass of one object is doubled?
(ii) the distance between the objects is doubled and tripled?
(iii) the masses of both objects are doubled?

10/11/2024

Science

9th

Gravitation

If the moon attracts the earth, why does the earth not move towards the moon?

10/11/2024

Science

9th

Gravitation

The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?

10/11/2024

Science

9th

Gravitation

What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106
 m.)

10/11/2024

Science

9th

Gravitation

Gravitational force acts on all objects in proportion to their masses. Why then, a heavy object does not fall faster than a light object?

10/11/2024

Science

9th

Gravitation

How does the force of gravitation between two objects change when the distance between them is reduced to half ?

10/11/2024

Science

9th

Gravitation

You have a bag of cotton and an
iron bar, each indicating a mass
of 100 kg when measured on a
weighing machine. In reality,
one is heavier than other. Can
you say which one is heavier
and why?

10/11/2024

Science

9th

Gravitation

You find your mass to be 42 kg
on a weighing machine. Is your
mass more or less than 42 kg?

10/11/2024

Science

9th

Gravitation

Why does an object float or sink when placed on the surface of water?

10/11/2024

Science

9th

Gravitation

What do you mean by buoyancy?

10/11/2024

Science

9th