Force is a physical cause that can change an object’s state of motion or dimensions. There are two types of forces based on their applications:
- Contact Force
- Non-Contact Force
Contact Force
Forces that act on a body either directly or through a medium are called contact forces.
Examples of contact forces are:
- Muscular Force
- Mechanical Force
- Frictional Force
We can use the muscular force of animals like bullocks, horses, and camels to get the activities done. The frictional force is another type of contact force, which acts between a pair of a surface in contact and tends to oppose the motion of one surface over the other.
Non-Contact Force
Forces that act through spaces without making direct contact with the body are called non-contact forces.
Examples of non-contact forces are:
- Gravitational Force
- Electrostatic Force
- Magnetic Force
The force exerted by a magnet on other magnets is called magnetic force. Magnetic force and electrostatic force act on an object from a distance. That’s the reason they are non-contact forces. The strength of gravity is an attractive force that is exerted by the Earth on objects, which makes them fall to the land. The weight of a body is the force that is pulled by the earth towards the centre.
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