Archimedes Law Quiz

"Eureka" is greek for...

• Yippee!

• Hey you!

• Look out!

• I found it!

Archimedes' Principle states that...

• The buoyant force acting on an object equals the volume of the fluid displaced by the object.

• The buoyant force acting on an object equals the volume of the object.

• The buoyant force acting on an object equals the weight of the fluid displaced by the object.

• The buoyant force acting on an object equals the weight of the object.

The buoyant force always opposes....

• friction force

• normal force

• air resistance

• gravitational force

When the weight of an object is greater than the buoyant force, the object will....

• sink

• shrink

• float

• expand

An object will will be partially submerged in a fluid if....

• the weight of an object is greater than the buoyant force

• the weight of an object is equal to the buoyant force

• the weight of an object is less than the buoyant force

• the weight doesn't affect if an object sinks, only its state of matter

If an object weighing 50.0 N displaces a volume of water with a weight of 10.0 N, what is the buoyant force on the object?

• 10N

• 40N

• 50N

• 60N

A ship stays afloat as long as the buoyant force is....

• less than the ships weight

• equal to the ships weight

• equal to the ships density

• less than the ships density

Which of the following statements is true?

• water floats on oil because water is less dense

• oil floats on water because oil is less dense than water

• oil does not float on water because water is more dense

• water floats on oil because water is denser than oil

The density of water is 1 g/cm^3. Which of the following substance will float?

• substance 1

• substance 2

• substance 3

• substance 4

A beach ball with a volume 0.002 m^3 is pushed underwater. If the density of water is 1000 kg/m^3, what is the magnitude of the buoyant force pushing upwards? (g = 10 m/s^2)

• 2N

• 20N

• 200N

• 2000N