CBSE Science Class 8
Force And Pressure
Force And Pressure - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Points To Remember:
- A push or a pull on an object is called a force.A force arises due to the interaction between two objects.
- Force has magnitude as well as direction.
- Force may change in the state of motion of an object or it may bring about a change in the shape of an object.
- Forces can be categorised as: contact forces and non-contact forces.
- Force per unit area is called pressure.
- Liquid and gases exerts pressure on the walls of their container.
- The atmospheric air extends up to many kilometres above the surface of the earth. The pressure exerted by this air is known as atmospheric pressure.
