Some non-contact forces are:-
- Gravitational force
- Electrostatic force
- Magnetic force
Gravitational force:- Gravitational force is responsible for bringing the items we toss into the air back to ear the. When an object is resting on the surface it is exerting a downward force equal to its weight and this downward force is known as Gravitational force.
Electrostatic force:- The electrostatic force is very similar to gravitational force, the difference here being that gravitational force acts between masses and electrostatic force acts between two charged bodies.
Magnetic force:- If you ever have two magnets, try joining their ends. In one case, the ends will attract each other vigorously. In another case, no matter how hard you try, the ends will never make contact.
Even if you push the ends together, the second you leave it, it will bounce off. This is the result of Magnetic force. Magnetic force is also responsible for the attraction of iron by a magnet. The magnetic force exerted by a magnet decreases with the increase in the distance from a magnet.
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