Force and Pressure

In this topic, we will learn about force- a pull or a push. We will learn that force is able to change the state of rest or the motion of an object. This change in position can be due to a change in speed, or change in direction, or both.

In this topic, we will learn that if two forces act in opposite directions on an object, the net force acting on it is the difference between the two forces. The strength of a force usually expressed by its magnitude.

In this topic, we will find out what happens when a force acts on an object. If the force applied on the object is in the direction of its motion, the speed of the object increases. This is explained with various examples here.

This topic explains that the force can change the shape of an object. We shall observe the change in shape of an object with the given activities.

This topic describes contact force. It explains muscular force with the help of various examples. Muscular force can be applied when it is in contact with an object. Hence, it is called contact force.

This topic describes the non-contact forces. Magnetic force, electrostatic force and gravitational force are non-contact forces. It is explained with the various activities and examples.

This topic describes pressure. Pressure is the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area. It also discusses the relationship between force and pressure with an example.

Liquid and gases both exert pressure on the walls of their container. This is known as Hydrostatic pressure. The concept is well explained with an example here.