The Buoyant Force - Assessment

1.

Multiple Choice

45 sec

1 pt

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

Substance

Fluid

Pressure

Displacement

2.

Multiple Choice

45 sec

1 pt

A buoyant force is a(n) ______ force

Upward

Downward

Side ways

3.

Multiple Choice

45 sec

1 pt

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

True

False

4.

Multiple Choice

45 sec

1 pt

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

Float

Sink

Expand

Shrink

5.

Multiple Choice

45 sec

1 pt

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

Expand

Shrink

Float

Sink

6.

Multiple Choice

45 sec

1 pt

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

Sink

Float

Expand

Shrink

7.

Multiple Choice

45 sec

1 pt

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

Balloon

Apple

Rock

Cell Phone

8.

Multiple Choice

45 sec

1 pt

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

True

False

9.

Multiple Choice

45 sec

1 pt

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

Sink

Float

Expand

Shrink

10.

Multiple Choice

45 sec

1 pt

If an object is more dense than the fluid which it is in, the buoyant force will be less and the object will ...

float

sink

shrink

expand

11.

Multiple Choice

45 sec

1 pt

_______ is the upward force exerted by a liquid on an object floating in the liquid.

pressure

buoyant force

normal force

fluid force

12.

Multiple Choice

20 sec

1 pt

The buoyant force on floating objects equals the weight of the floating object

true

false

13.

Multiple Choice

30 sec

1 pt

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?

10 N

60 N

40 N

20 N

14.

Multiple Choice

30 sec

1 pt

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

weight of the object.

greater than

less than

the same as

does not apply

15.

Multiple Choice

30 sec

1 pt

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

water as you dive under?

3.5 N

35 N

350 N

3500 N

16.

Multiple Choice

30 sec

1 pt

The buoyant force on an object is dependent on _____.

the object’s density

the mass of the object

the volume of the object

the shape of the object

17.

Multiple Choice

30 sec

1 pt

According to the Archimedes’ principle, the buoyant force on an object is equal to the _____ of the fluid that the object displaces.

mass

weight

density

18.

Multiple Choice

30 sec

1 pt

Buoyant forces act on an object in a _____.

solid

liquid

gas

liquid or gas

19.

Multiple Choice

30 sec

1 pt

A ship that has greater mass per volume than water

Sink

Float

20.

Multiple Choice

30 sec

1 pt

Archimedes’ principle states that a buoyant force on an object is equal to the volume of the fluid that the object displaces.

True

False

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