State whether the following statement is True or False:
The inertia of an object depends upon its mass.

When an object, say an apple, falls towards the Earth, the Earth rises up to meet it. Is this true? If so, why is the Earth's motion not noticeable?

The factors associated with the motion of an object are: Force,Velocity,Acceleration,and Momentum. Out of these four factors,which one remains constant for all bodies—large or small—undergoing a free fall?

$A$ bomb is released from an aircraft. Its trajectory is:

What is the ratio of the gravitational force between two masses kept at a certain distance in air to the force between them when kept in any other medium?

State the universal law of gravitation.