Pressure on Solids

Pressure is the force applied on an object per unit area. In everyday life, we experience pressure in many ways. For instance, when we place a weight on a solid surface, pressure is created at the point of contact between the object and the surface. Air pressure is the force exerted by the weight of air molecules pressing down on all objects around us. Even though we don’t feel it, air pressure acts on every object in all directions because air surrounds us.

When a weight (like a book or a heavy object) is placed on a solid surface (like a table), it applies force downward due to gravity. This force creates pressure at the point where the weight touches the surface.

Factors Affecting Pressure on Solids,

• Value of the Weight (Force): An increase in the weight of an object results in a greater force exerted on the surface. Heavier objects apply more pressure.
• Contact Area: Smaller contact areas (like a nail) exert higher pressure on the surface. Larger contact areas (like a flat board) distribute the force, resulting in lower pressure.

Force and Pressure