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Worksheets

Forces and Fluids

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.

Water pressure increases as

a)

depth increases

b)

gravity decreases

c)

force decreases

d)

acceleration increases

2.

Snowshoes enable a person to walk on deep snow because the snowshoes

a)

decrease the person's weight on the snow

b)

increase the area over which the person's weight is distributed

c)

increase the pressure on the snow

d)

increase the buoyancy of the person

3.

Which of the following is true of the buoyant force?

a)

it acts in the downward direction

b)

it acts with the force of gravity

c)

it acts in the upward direction

d)

ti makes an object feel heavier

4.

The mass per unit volume of a substance is its

a)

density

b)

buoyancy

c)

weight

d)

fluid pressure

5.
The upward force exerted by a fluid on a submerged object.
a)
gravity
b)
anti-gravity
c)
buoyant force
d)
lift
6.
What is the equation for pressure?
a)
Pressure = Force / Surface area
b)
Pressure = Force x Surface area
c)
Pressure = Force + Surface area
d)
I have a 6 foot squirrel named Antney
7.
Fluid pressure is directed
a)
in all directions.
b)
only upward.
c)
only downward.
d)
always sideways.
8.
An object is buoyed up when
a)
the buoyant force is less than the object's weight.
b)
the buoyant force is greater than the object's weight.
c)
the buoyant force equals the object's weight.
d)
there is high air pressure.
9.
Which of the following is a change that will not affect the pressure in a container?
a)
heating or cooling the fluid
b)
changing the material that the fluid´s container is made of
c)
changing the weight of the fluid
d)
increasing the volume of the fluid
10.
Which state or states of matter is a fluid?
a)
gas
b)
liquid
c)
solid
d)
both gases and liquids
11.

Materials that can flow and take the shape of their containers include…

a)

Both gases & liquids

b)

Liquids

c)

Gases

d)

Neither gases nor liquid

12.

Which of the following would not affect the level at which a cargo ship floats in a body of water?

a)

The depth of the water

b)

The mass of the ship’s cargo

c)

The volume of the ship

d)

The density of the ship’s material

13.

Fluid pressure increases as depth increases.

a)

True

b)

False

14.

You can change density of an object by changing the object’s volume.

a)

True

b)

False

15.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
16.
If an object sinks in a fluid, _____.
a)
the density of the fluid is greater than the density of the object
b)
the density of the fluid is less than the density of the object
c)
the density of the fluid is equal to the density of the object
d)
density has nothing to do with whether an object sinks or floats, only which state of matter the object is
17.

Why do solids expand when they are heated?

a)

The particles get bigger

b)

The particles vibrate more and take up more space

c)

The particles vibrate more and get closer together

d)

The particles stick together

18.

This diagram represents particles in a ______________ state.

a)

Solid

b)

Liquid

c)

Gas

19.
Which state of matter has molecules that slide past each other but stay close together? They do not form a regular pattern.
a)
solid
b)
liquid
c)
gas
20.
What does the particle diagram show?
a)
solid
b)
liquid
c)
gas
d)
plasma
21.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
22.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles beak away from one another
c)
the particles move closer together
23.
What is the change of state from a gas to a liquid called?
a)
melting
b)
evaporation
c)
condensation
d)
sublimation
24.
What is the change of state from a solid straight to a gas called?
a)
melting
b)
evaporating
c)
freezing
d)
sublimation
25.

When something goes from gas to liquid, it is called...

a)

Evaporation

b)

Condensation

c)

Deposition

d)

Freezing