Buoyancy

The formula for density is...

• mass/ acceleration

• volume/ mass

• mass/ volume

• acceleration/ mass

Which cube is denser?

• A

• B

• They have the same density

Buoyancy is the tendency for objects to float in a fluid. We consider buoyancy the...

• Anti-gravity force

• Gravitational pull

• Downwards pull on an object

Which will result in positive buoyancy?

• When the buoyant force is greater than the force of gravity

• When the buoyant force is less than the force of gravity

• When the buoyant force is equal to the force of gravity

What is buoyant force?

• An upward force exerted by fluids on an object.

• A downward force exerted by fluids on an object.

An empty water bottle floating on the water is an example of....

• positive buoyancy

• negative buoyancy

Which of the following is a true statement?

• A cork has negative buoyancy

• A penny has neutral buoyancy

• A brick has positive buoyancy

• A rowboat has positive buoyancy

If an object sinks in a fluid, the buoyant force is ____ the

weight of the object.

• greater than

• less than

• the same as

According to Archimedes, the buoyant force on an object is

equal to ____.

• the weight of the object

• the fluid pressure on the object

• the density of the fluid

• the weight of the fluid displaced