Question

Define force. What changes can be produced by force?

Answer 1

Force is an external agent (push or pull) acting on an object which changes or tends to change the state of rest or motion of an object. It is a vector quantity.

The SI unit of force is Newton $\left(N\right)$.

Force can produce the following changes when acts on an object:

i. the state of rest or motion of an object

ii. the shape of an object

iii. the size of an object

iv. the direction of motion

v. the speed of motion