Question 1

What is a push or pull on an object called?

Accepted Answer

A push or pull on an object is called a force. Force can cause an object to move, stop, change speed, or change direction.

Question 2

Which of the following is an example of a contact force?

Accepted Answer

Muscular force is a contact force because it requires physical contact between two objects to act.

Question 3

Forces applied on an object in the same direction add to each other or opposite?

Accepted Answer

When two or more forces act in the same direction on an object, they add up to each other, resulting in a net larger force.

Question 4

What is the force exerted by a charged body on another charged or uncharged body called?

Accepted Answer

The force exerted by a charged body on another charged or uncharged body is known as electrostatic force.

Question 5

Which force is responsible for pulling objects towards the Earth?

Accepted Answer

Gravitational force (or gravity) is the force exerted by the Earth to pull objects towards its center.

Force and Pressure — NCERT Class 8 Science Important Questions & Revision Notes