Question

name two categories of force and define each

Answer 1

Hey friend,

A push or pull on an object which changes or tends to change the shape, size, state of rest, state of motion, etc. of that object is called force. There are two types of forces:
(i) Contact Forces
The forces which are applied on bodies by making a physical contact, are called the contact forces. These forces are produced and experienced when a body comes in contact with another body. Examples of contact forces are―
a. Frictional Force(The force of friction)
b. Normal Reaction Force
c. Force of Tension Exerted by a String
d. Force Exerted by a Spring
e. Force Exerted on Bodies During Collisions, etc.

(ii) Non-Contact Forces
The forces experienced by bodies even without being physically touched, are called the non-contact forces or the forces at a distance. Examples of non-contact forces are―
a. Gravitational Force
b. Electrostatic Force
c. Magnetic Force

★Hope my answer helps you★