observe your surrounding how many how many types of Forces are working make their list and define them
Answers
frictional force:- which helps us to walk n do our activities
inertia :-which helps to keep our body at place but it isn't a force.
electrostatic force:- due to which charge is moving and current is flowing
Contact Forces: These take place when objects touch each other. For e.g. when you kick a ball or pull a chair. They can further be classified as following:
Tensional : When a string, thread or wire is held taut, the ends of the string or thread (or wire) pull on whatever bodies are attached to them in the direction of the string. This is known as Tension.
Spring: The force exerted by a compressed or stretched spring upon any object that is attached to it is known as Spring Force. An object that compresses or stretches a spring is always driven in the direction that restores the object to its rest or equilibrium position. For most springs (specifically, for those that are said to obey “Hooke’s Law”), the magnitude of this drive is directly proportional to the amount of stretch or compression of the spring.
Normal Reaction: When a body exerts a force on another, the second provides a reaction which acts perpendicular to the surface of the second body. This is known as the normal reaction.
Friction: The force exerted by a surface as an object moves across it or makes an effort to move across it is called Friction. There are at least two types of friction force – sliding and static friction. For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion. Friction results from the two surfaces being pressed together closely.
Air Resistance: This is a special type of friction that acts upon objects as they travel through the air. The force of air resistance is often observed to oppose the motion of an object. It is most noticeable for objects that travel at high speeds (e.g., a skydiver or a downhill skier) or for objects with large surface areas.
Weight: It is a field force with which a body is pulled towards the center of the earth due to its gravity. It has the magnitude mg, where m is the mass of the body and g is the acceleration due to gravity.
Non-Contact Forces (Field Forces or Action at Distance Forces)
These Forces take place due to some inherent characteristics of the body and come into existence without any physical interaction between the bodies. In short, forces that act between bodies separated by a distance without any actual contact. Some examples of Non-Contact Forces are:
Gravitational Forces: This is due to the gravitational attraction between two bodies. In the case of attraction due to earth, the force is always directed downwards.
Electrical Forces: These are due to the charges present on two bodies. The direction of these forces depends on the type of charges on the two interacting bodies.
Magnetic Forces: These take place between two bodies due to their magnetic characteristics. The direction depends upon the nature of magnetic polarity acquired by the bodies.