Quiz about Buoyant Force

Question 1

A buoyant force is an upward force applied on an object by a

Accepted Answer

Fluid

Answer

Substance

Answer

Pressure

Answer

Displacement

Question 2

A buoyant force is a(n) ______ force

Accepted Answer

Upward

Answer

Downward

Answer

Side ways

Question 3

Archimedes' principle states that the weight of the fluid an object displaces is equal to the buoyant force acting on the object.

Accepted Answer

True

Answer

False

Question 4

An object will _______ if the weight of it is equal to the weight of the water in which it is in.

Accepted Answer

Float

Answer

Sink

Answer

Expand

Answer

Shrink

Question 5

An object will ______ if its' density is greater than the density of the fluid it is in.

Accepted Answer

Sink

Answer

Expand

Answer

Shrink

Answer

Float

Question 6

An object with a very low buoyant force acting on it will _____.

Accepted Answer

Sink

Answer

Float

Answer

Expand

Answer

Shrink

Question 7

Which object, if thrown into a liquid, will have a greater buoyant force?

Accepted Answer

Balloon

Answer

Apple

Answer

Rock

Answer

Cell Phone

Question 8

The volume of the liquid an object displaces will be equal to the buoyant force.

Accepted Answer

True

Answer

False

Question 9

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

Accepted Answer

Sink

Answer

Float

Answer

Expand

Answer

Shrink

Question 10

Which of the following statements is correct?

Accepted Answer

Liquids have a definite volume.

Answer

Liquids have a definite shape.

Answer

Gases have a definite volume.

Answer

Gases have a definite shape.

Question 11

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?

Accepted Answer

10.0 N

Answer

60.0 N

Answer

50.0 N

Answer

40.0 N

Question 12

Which of the following statements is true about the buoyant force on an object that is floating on the surface of a lake?

Accepted Answer

The buoyant force is equal to the weight of the fluid displaced.

Answer

The buoyant force is greater than the weight of the object.

Answer

The buoyant force is the same as when the object is completely submerged.

Answer

The buoyant force is less than the density of the water.

Question 13

In which of the following situations will an object sink?

Accepted Answer

The mass density of the fluid is less than the mass density of the object.

Answer

The mass density of the object is less than the mass density of the fluid.

Answer

The buoyant force on the object is equal to the weight of the object.

Answer

The weight of the fluid displaced equals the weight of the object.

Question 14

Archimedes' principle addresses

Accepted Answer

buoyant force

Answer

drag force

Answer

gravitational force

Question 15

The scientific description of buoyant force is known as

Accepted Answer

Archimedes' principle

Answer

Pascal's Principle

Answer

buoyancy principle

Answer

Bernoulli's principle

Question 16

To float in water, an object must

Accepted Answer

be less dense than water

Answer

be more dense than water

Answer

have less surface area than water

Answer

have more surface area than water

Question 17

Joseph weighs 290N and displaces 300N of water as he swims under water in a pool. What is the buoyant force on Joseph?

Accepted Answer

300 N upward

Answer

10 N upward

Answer

290 N downward

Answer

590 N downward

Question 18

Which statement about boats is correct.

Accepted Answer

A boat floats only if its overall density is less than that of water

Answer

A boat cannnot be made from metal because metal has a greater density than water

Answer

A boat floats only if its overall mass per volume is more than water's mass per volume

Answer

A boat floats only if the weight of water it displaces is less than the boat's weight

Question 19

An object with a very low buoyant force acting on it will _____.

Accepted Answer

Sink

Answer

Float

Answer

Expand

Answer

Shrink

Question 20

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

weight of the object.

Accepted Answer

less than

Answer

greater than

Answer

the same as

Answer

does not apply

Question 21

As an object sinks in a fluid, the buoyant force ____.

Accepted Answer

remains the same

Answer

increases

Answer

decreases

Answer

depends on the shape

Question 22

What is the buoyant force on you if you displace 350 N of

water as you dive under?

Accepted Answer

350 N

Answer

3.5 N

Answer

35 N

Answer

3500 N

Question 23

Two bricks are the same size. One is made of foam and one is made of stone. They are set in a tank of water. What will happen?

Accepted Answer

The foam brick will float and the stone brick will sink.

Answer

Both bricks will float

Answer

Both bricks will sink

Answer

The foam brick will sink and the stone brick will float.

Question 24

Buoyant forces act on an object in a _____.

Accepted Answer

liquid or gas

Answer

solid

Answer

liquid

Answer

gas

Question 25

A boat filled with sand that has a weight equal to the weight of the water it displaces.

Accepted Answer

Float

Answer

Sink

Question 26

Density is defined as...

Accepted Answer

Mass per unit volume of a substance

Answer

Centimeters cubed per mass of substance

Answer

Flow rate of a substance

Question 27

Looking at the image... can oak float in water?

Accepted Answer

Yes

Answer

No

Question 28

How do we calculate density? (with correct units!)

Accepted Answer

D = m/v (in g/mL or g/cm3)

Answer

D = v/m (in g/mL or g/cm2)

Answer

D=m/v (in mL/g or cm3/g)

Question 29

True or False: Volume is the amount of matter in a substance. Mass is the amount of space a substance takes up.

Accepted Answer

False

Answer

True

Question 30

True or False: Buoyancy is an upwards force measured in Newtons.

Accepted Answer

True

Answer

False

Question 31

Swim bladders and ballistic tanks in a submarine serve to control the ________________ of a fish and a submarine.

Accepted Answer

Average density

Answer

Buoyant force

Answer

Neutral buoyancy

Question 32

Which box has a higher density?

Accepted Answer

Box A

Answer

Box B

Answer

cannot be determined

Answer

they are the same

Question 33

A ship stays afloat as long as the buoyant force is

Accepted Answer

equal to the ship's weight

Answer

less than the ship's weight

Answer

less than the ship's speed

Answer

greater than the ship's speed

Question 34

Fluid pressure is directed

Accepted Answer

in all directions.

Answer

only upward.

Answer

only downward.

Answer

always sideways.

Buoyant Force

35 questions

A buoyant force is an upward force applied on an object by a

A buoyant force is a(n) ______ force

Archimedes' principle states that the weight of the fluid an object displaces is equal to the buoyant force acting on the object.

An object will _______ if the weight of it is equal to the weight of the water in which it is in.

An object will ______ if its' density is greater than the density of the fluid it is in.

An object with a very low buoyant force acting on it will _____.

Which object, if thrown into a liquid, will have a greater buoyant force?

The volume of the liquid an object displaces will be equal to the buoyant force.

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

Which of the following statements is correct?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science