Question

What is contact and non contact force

Answer 1

Contact force:If there is a direct physical contact between two objects .There exist a force that force is known as contact force .
example:blinking of eyes,claping of hands etc.....................
Non Contact force:if there is no direct contact between two objects.there exist a force that force is known as non contact force.
exmalpe:place a bar magnet and also place a compass over there we can find there no direct contact between that two objects then also they are working.

Answer 2

$\huge {\underline {\underline {\pink {\sf{Answer : - }}}}}$

$\sf \large (i) {\underline {\blue {\sf{force : - }}}}$

A push (or) pull is called a force.

$\sf \large (i) \: {\underline {\orange {\sf{Contact \: force : - }}}}$

Forces which come into play only when there is direct contact between the two bodies is called contact force.

EXAMPLES :- Muscular forces , Friction , Reaction force , Tension , etc...

$\sf \large (ii) \: {\underline {\green {\sf{Non - Contact \: force : - }}}}$

Non-Contact force is a force which comes into play when there is no direct contact between the bodies.

EXAMPLES :- Gravitational force , Electromagnetic force , magnetic force ,...

$\sf \large (i) \: {\underline {\red {\sf{Effects \: of \: force : - }}}}$

• It can change the motion of a body

• It can change the size and shape of the body

• It can change the direction of motion

• It can change the speed of the moving body