Force

FORCE

-Force is a push or pull of an object. Force is of 2 types.

              there are balanced and un balanced force

There are two types of forces

1.Contact force

2.Non-contact force

1.Contact force- Force exerted by objects in contact with each other is known as contact force.

There are two types of contact forces

a)Muscular force

b)Frictional force

a)Muscular force- Force exerted by muscles is known as muscular force. Eg:drawing water out of well. b)Frictional force- Force which opposes the motion of body is known as frictional force. Eg:walking on a surface. 2.Non-contact force- Force exerted by objects without contact with each other is known as Non-contact force.

There are three types of Non-contact forces

a)Magnetic force

b)Electrostatic force

c)Gravitational force

a)Magnetic force- Force exerted by magnet is known as magnetic force.

Example:magnet attracts nail

. b)Electrostatic force-Force exerted by one charged body on another charged or un charged body is known as electrostatic force

. Example:comb attracts papers. c)Gravitational force-Force that pulls the object towards earth. Example:ball falling towards earth.