Force#Contact force#Muscular force#Physical science#Class-8#shorts

Contact forces are

Non contact forces are

Name two contact forces.

Which of the following are non - contact forces ? Magnetic force, Frictional force, Gravitional force, Muscular force, Electrostatic force.

What is contact force?

Physical force theory explains

Name two non - contact forces.

Give example of contact force .

Suppose F,F_(N) & f are the magnitudes of the contact force, normal force and the frictional force exerted by one surface on the other, kept in contact, if none of these is zero :