30.2 Buoyancy

Front

What is buoyancy?

Back

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

Front

What does Archimedes' Principle state?

Back

Archimedes' Principle states that the buoyant force acting on an object equals the weight of the fluid displaced by the object.

Front

What determines whether an object will float or sink in a fluid?

Back

An object will float if its density is less than the density of the fluid; it will sink if its density is greater.

Front

What is the formula for calculating buoyant force?

Back

Buoyant Force = Weight of the fluid displaced.

Front

How does the weight of an object change when submerged in water?

Back

The apparent weight of an object submerged in water is less than its actual weight due to the buoyant force acting on it.

Front

What is the relationship between buoyant force and gravity?

Back

An object will rise in a fluid if the buoyant force is greater than the gravitational force acting on it.

Front

What is the significance of the shape of a boat in relation to buoyancy?

Back

The hollow shape of a boat allows it to displace a large volume of water, resulting in a lower overall density, which helps it float.

Front

What happens to the buoyant force if the volume of fluid displaced increases?

Back

If the volume of fluid displaced increases, the buoyant force also increases.

Front

What is the effect of fluid density on buoyancy?

Back

Higher fluid density results in a greater buoyant force acting on an object.

Front

What is the concept of displacement in relation to buoyancy?

Back

Displacement refers to the volume of fluid that is moved out of the way by an object when it is submerged.