5 Questions
What is the force applied per unit area called?
Pressure
A heavy object exerts more pressure on a surface because of its
greater weight
An object with a larger surface area in contact with a surface will exert
less pressure
What happens to the pressure of an object if its surface area is reduced?
it increases
Which of the following is an example of force being applied over a small surface area?
a person standing on one leg
Study Notes
Pressure
- Pressure is the force applied per unit area.
Factors Affecting Pressure
- The weight of an object affects the pressure it exerts on a surface, with heavier objects exerting more pressure.
- The surface area of an object in contact with a surface affects the pressure it exerts, with larger surface areas resulting in less pressure.
Effect of Surface Area on Pressure
- If the surface area of an object is reduced, the pressure it exerts on a surface will increase.
Examples of Force and Surface Area
- An example of force being applied over a small surface area is a stiletto heel, which exerts a large amount of pressure on a small area.
Test your understanding of forces and pressure with this quiz. Learn about the relationship between force and surface area, and how pressure changes with different surface areas.
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