What are different types of
forces and their examples?
Answers
Force:
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
Different types of forces are:
Contact forces: objects are in contact with each other and exert forces on each other.
Non-contact (field) forces: objects are not in contact with each other and exert forces on each other.
Contact 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 force:
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 Force:
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.
Explanation:
Types of Forces
Contact Forces Action-at-a-Distance Forces
Frictional Force Gravitational Force
Tension Force Electrical Force
Normal Force Magnetic Force