Chapter 4 Review: Buoyancy and Pressure

Front

What is displacement?

Back

Displacement is when one object moves out of the way to make room for another object.

Front

What is buoyant force?

Back

Buoyant force is the upward force exerted by a fluid on an object that is submerged in it.

Front

How do you calculate buoyant force?

Back

Buoyant force can be calculated by finding the difference in weight of an object in air and its weight in water.

Front

What happens to atmospheric pressure as altitude increases?

Back

Atmospheric pressure decreases as altitude increases.

Front

What is the relationship between area and pressure?

Back

When area increases, pressure decreases.

Front

What is the formula for calculating pressure?

Back

Pressure = Force / Area.

Front

What is the unit of pressure?

Back

The unit of pressure is Pascal (Pa).

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 the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the principle of flotation?

Back

The principle of flotation states that an object will float if the buoyant force is equal to or greater than its weight.