Explain 3 types of non-contact forces
Answers
Answer:
3 types of non contact forces are
1) Magnetic forces
2). Gravitational force
3) centripetal force
Non-Contact Forces Types
Gravitational Force
Gravitational force is responsible for bringing the items we toss into the air back to earth. When an object is resting on a surface it is exerting a downward force equal to its weight and this downward force is known as Gravitational force.
Non-Contact Force
The gravitation is a force of attraction that exists between all bodies that have mass. The gravitational force of the sun keeps the Earth and all the other planets of the solar system is a fixed orbit. Gravitational force does not need to be in contact to exert its downward 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.
Non-Contact Force
If you rub a comb on your clothes and then hold it near tiny pieces of paper you will see the bits of paper standing on their end attracted to the comb. We are made of tiny positive, negative and neutral particles. The opposite charges attract each other and like charges repel. This is the result of electrostatic forces.
Magnetic Force
Have you ever used a magnet? Doesn’t it feel like magic? 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.
Non-Contact Force
Even if you push the ends together, the second you leave it, it will bounce off. This is the result of Magnetic force. It 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. Read what is a Force and other types of forces like Contact Force.
Examples of Non-Contact Force
Various Non-Contact Force examples from our daily life are provided below.
An apple falling down from a tree is one of the best examples of non contact force.
Iron pins attracted in the presence of a magnet bar without any physical contact.
Falling of raindrops on earth is also an example of non-contact force.
The charging of the hair and attraction of paper bits towards it.
Two magnets are placed close to each other is also a non contact force example.
Free fall of a ball towards earth is by the virtue of gravity.
Leaves falling from a tree is an example of non-contact force.
Electromagnetism is another example of non-contact force.
There are various examples from electrostatics showing the attraction of small materials towards an object.
When electric current is passed through iron converting it into an electromagnet, it attracts iron and particles towards it, thus, displaying non contact force properties.