Magnetic force is a contact force.
Magnetic and electrostatic forces are contact forces.
(a) Define frictional force (or friction)
(b) Explain why frictional force is said to be a contact force.
(c) Explain why magnetic force is said to be a non-contact force.
The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will