What does the term force per unit area is called?

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Detailed Solution

The term force per unit area is called Pressure. Pressure is the amount of force applied on a surface divided by the area over which the force is applied. In simple words, pressure tells us how much force is acting on a certain area.

The formula for pressure is:

Pressure (P) = Force (F) / Area (A)

Here, Force is measured in Newtons (N) and Area in square meters (m²), so the unit of pressure is Newton per square meter (N/m²) also known as Pascal (Pa).

Examples of Pressure in Daily Life

Walking: A person wearing high heels exerts more pressure on the ground than someone wearing flat shoes because the area of contact is smaller.
Needles: A sharp needle pierces the skin easily because it applies force on a very small area, creating high pressure.
Hydraulic Systems: Used in car brakes and heavy machines where small force is converted into large force using pressure.

Applications of Pressure