How many different types of forces? Explain them
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Answers
Explanation:
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There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object.
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A contact force is any force that requires contact to occur. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car up a hill or kicking a ball across a room are some of the everyday examples where contact forces are at work.
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Action-at-a-distance forces are those types of forces that result even when the two interacting objects are not in physical contact with each other, yet are able to exert a push or pull despite their physical separation. Examples of action-at-a-distance forces include gravitational forces.
Answer:
Hope it helps you
Explanation:
Forces can be divided into primarily into two types of forces:
1. Contact Forces
2. Non-contact Forces
Contact Forces
Any types of forces that require being in contact with another object come under ‘Contact Force’. All mechanical forces are contact forces. Contact forces further divide into following types of forces:
Muscular Forces
Muscles functions to produce a resulting force which is known as ‘muscular force’. Muscular force exists only when it is in contact with an object. We apply muscular force during the basic day to day work of our life such as breathing, digestion, lifting a bucket, pulling or pushing some object. Muscular force comes in handy to simply our work.
Frictional Forces
When an object changes its state motion, ‘frictional force‘ acts upon. It can be defined as the resisting force that exists when an object is moved or tries to move a surface. The frictional force acts as a point of contact between two surfaces that is it arises due to contact between two surfaces. Examples lighting a matchstick or stopping a moving ball come under frictional force.
Normal Force
When a book is lying on the table, even though it seems that it’s stationary, it’s not. An opposing force is still acting on the book wherein the force from gravity is pulling is towards the earth. This force is the ‘normal force’.
Applied Force
When you push a table across the room, you apply a force that acts when it comes in contact with another object. This is ‘applied force’; i.e. a force that is applied to a person or object.
Tension Force
Tension is the force applied by a fully stretched cable or wire anchored on to an object. This causes a ‘tension force‘ that pulls equally in both directions and exerts equal pressure.
Spring Force
Force exerted by a compressed or stretched spring is ‘spring force’. The force created could be a push or pull depending on how the spring is attached.
Air Resisting Force
Air resisting forces are types of forces wherein objects experience a frictional force when moving through the air. These forces are resistive in nature.
Non-Contact Forces
The types of forces that can be exerted without requiring any contact with any object are ‘non-contact forces’. They further divide into following types of forces:
Gravitational Force
Gravitational force is an attractive force that can be defined by Newton’s law of gravity which states that ‘gravitational forces between two bodies are directly proportional to the product of their masses and inversely proportional to the square of the distance between them’. It is a force exerted by large bodies such as planets and stars.
Example: water droplets falling down
Magnetic Force
The types of forces exerted by a magnet on magnetic objects are ‘magnetic forces’. They exist without any contact between two objects.
Electrostatic Force
The types of forces exerted by all electrically charged bodies on another charged bodies in the universe are ‘electrostatic forces’. These forces can be both attractive and repulsive in nature based on the charge of the bodies.