Forces and Fluids

Front

What is pressure?

Back

Pressure is the amount of force applied per unit area on an object's surface.

Front

How is pressure calculated?

Back

Pressure (P) is calculated using the formula: P = Force (F) / Area (A).

Front

What happens to pressure when the surface area increases?

Back

Pressure decreases when the surface area over which a force is applied increases.

Front

What is Pascal's Principle?

Back

Pascal's Principle states that when pressure is applied to a confined fluid, the pressure change occurs throughout the fluid.

Front

What is Archimedes' Principle?

Back

Archimedes' Principle states that an object submerged in a fluid experiences a buoyant force equal to the weight of the fluid displaced.

Front

What is Bernoulli's Principle?

Back

Bernoulli's Principle states that as the speed of a fluid increases, its pressure decreases.

Front

What is buoyancy?

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.

Front

What is the relationship between density and buoyancy?

Back

An object will float if it is less dense than the fluid it is in; it will sink if it is more dense.

Front

What is the unit of pressure?

Back

The unit of pressure is Pascal (Pa).

Front

If a block weighs 60 N and has a surface area of 2m by 3m, what is the pressure exerted on the surface?

Back

10 Pa.