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PRESSURE

Total questions: 96

Worksheet time: 2hrs 36mins

Name
Class
Date
1.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
2.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
3.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
4.
Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.
a)
True
b)
False
5.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
6.
What is the instrument that measures air pressure called?
a)
Graduated cylinder
b)
Barometer
c)
Force scale
d)
Anemometer
7.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
8.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
9.

The pressure inside the balloon will:

a)

Decrease

b)

Increase

c)

Remain the same

d)

Not enough information to formulate an answer

10.

The pressure of the gas in the balloon in the ice water will be:

a)

Greater than that of the balloon in the boiling water.

b)

Less than that of the balloon in the boiling water.

c)

The same as that of the balloon in the boiling water.

d)

Not enough information to answer the statement.

11.

This is an example of the everyday application of pressure in:

a)

Solids

b)

Liquids

c)

Gases

d)

Plasma

12.

Weather balloons travel to a great height gathering data before the balloon bursts. This is because the atmospheric pressure (layer of gas surrounding the earth):

a)

Increases the higher you travel.

b)

Decreases the higher you travel.

c)

Remains the same.

d)

Not enough information to answer the question.

13.

The reason gases can be compressed is because:

a)

The particles are very close together.

b)

The particles are merely vibrating.

c)

The particles are unable to move.

d)

The particles are very far apart.

14.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

15.
Which of the following would increase the pressure on a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
16.
What decreases as you go up in the atmosphere?
a)
Altitude
b)
Atmosphere
c)
Meteors
d)
Air Pressure
17.

Why won't you sink in mud if you wear boots?

a)

Because the surface area is larger creating less pressure.

b)

Has air in it to keep you floating.

c)

Because the mud won't want you.

18.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The design of this structure is stronger.

b)

Water pressure increases with depth.

c)

The cost of construction is lower.

d)

Water pressure acts uniformly in all directions.

19.

What is pressure?

a)

The amount of force exerted on a surface

b)

The surface area of an object

c)

The weight of an object

20.

An object will float on water if it is

a)

less dense than water.

b)

more dense than water.

c)

the same density as water.

21.
A fluid can be...
a)
a gas
b)
a liquid
c)
a liquid or a gas
d)
a solid
22.
Buoyancy is the tendency for objects to float in a fluid. Buoyancy pushes the opposite direction of...
a)
waves push.
b)
magnetic pull.
c)
the wind.
d)
gravity's pull
23.
Car brakes and car jacks are examples of
a)
hydraulic systems
b)
archimedes' principle
c)
atmospheric pressure
d)
buoyancy
24.

Army tank tracks are useful for travelling through the mud because..

a)

they decrease the force the vehicle exerts on the ground

b)

they increase the force the vehicle exerts on the ground

c)

they decrease the pressure the vehicle exerts on the ground

d)

they increase the pressure the vehicle exerts on the ground

25.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
26.
As you climb up a mountain what happens to the air pressure?
a)
decreases
b)
increases
c)
stays the same
27.

Where would pressure be the greatest

a)

10 m deep in a lake at sea level

b)

5 m deep in a pond on a mountain

c)

top of a mountain 15,000 feet up

d)

on a hill in Oklahoma City (1,200 ft. above sea level)

28.

Choose two correct applications that exert high pressure.

a)

Tractors have big and wide wheels

b)

Press a thumbtack into a plank

c)

Studs on the sole of football boots

d)

Shoulder pad for a school bag

29.

Magdeburg Hemisphere, straw, syphon, and vacuum cleaner are some of the applications of .........

a)

buoyant force

b)

liquid pressure

c)

air pressure

d)

density

30.

Atmospheric pressure depends on .......

a)

mass

b)

density

c)

altitude

d)

magnitude

31.

When a diver dives deeper into the ocean, he will experience ...................... liquid pressure

a)

greater

b)

less

c)

no

32.

The higher the temperature, the .................................. the movement of air particles.

a)

slower

b)

faster

c)

neither

d)

same

33.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
34.
What is altitude?
a)
how much something weighs
b)
the distance above sea level
c)
how big something is
d)
how far away something is
35.
What happens to the amount of oxygen molecules as altitude increases?
a)
fewer molecules
b)
more molecules
c)
same amount of molecules
d)
nothing happens to the molecules
36.
Air pressure is greatest when near Earth's surface because?
a)
The air molecules are farther apart.
b)
The air molecules are closer together.
c)
Air molecules collide.
d)
Air molecules are tightly packed.
37.
Air pressure does not crush objects on earth
a)
because more air pushes down than up
b)
because gravity keeps air pressure away
c)
because air pressure pushes in all directions
d)
because the Earth has an opposing force of gravity
38.
Why is it hard to breath at high altitudes?
a)
There is too much oxygen in this location.
b)
There is a higher density of air molecules.
c)
There is a low density of air molecules.
d)
The air pressure is greater than at low altitudes.
39.
More molecules close together, means density is:
a)
high
b)
low
40.
Where is pressure the greatest on the dam?
a)
D
b)
C
c)
B
d)
A
41.
What is the difference between particles in a gas and a solid?
a)
gas particles are closer together
b)
solid particles move faster than gas particles
c)
solid particles expand on heating
d)
gas particles have more kinetic energy than solid particles
42.
How can we increase the gas pressure inside a sealed container?
a)
Increase the number of particles inside the container
b)
Increase the temperature
c)
Decrease the volume of the container
d)
All of these
43.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

a)

The pressure will increase

b)

The pressure will decrease

c)

The pressure will remain constant

d)

The pressure will equalize

44.

Pressure can be exerted by solids, liquids and gases.

a)

TRUE

b)

FALSE

45.

The pressure inside the syringe will decrease if we move the plunger in:

a)

Direction A

b)

Direction B

c)

We don't have to move the plunger as the pressure will change on its own.

d)

None of the above answers.

46.

We can increase the pressure of a gas by:

a)

Adding more gas.

b)

Reduce the volume of the container.

c)

Increase the temperature of the gas.

d)

None of the above answers.

47.

The reason gases can be compressed is because:

a)

The particles are very close together.

b)

The particles are merely vibrating.

c)

The particles are unable to move.

d)

The particles are very far apart.

48.

In gases, pressure is

a)

directly proportional to volume

b)

inversely proportional to volume

c)

directly proportional to friction

d)

inversely proportional to heat

49.

For a constant temperature, Boyle's law states that

a)

the pressure of a fixed amount of gas is directly proportional to the volume of the gas

b)

the pressure of a fixed amount of gas is inversely proportional to the volume of the gas

c)

the pressure of a fixed amount of gas is independent of the volume of the gas

d)

None of the above

50.

According to Charles Law, if you have a balloon inside a car at noon during a hot summer day the balloon molecules inside will increase in pressure.

a)

True

b)

False

51.

Gas pressure is caused by

a)

Gas molecules heating up

b)

Gas molecules reacting with other gas molecules

c)

Gas molecules hitting the walls of a container

d)

Gas molecules hitting other gas molecules

52.

Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will

a)

Increase

b)

Decrease

c)

Remain the same

d)

Decreases for some, while increase for others

53.

The temperature of gas is held constant, while its volume is decreased. The pressure exerted by the gas on the wall of the container increases, because its molecules

a)

Strike the walls with higher velocities

b)

Strike the walls with large farce

c)

Strike the walls more frequently

d)

Are in contact with the walls for a shorter time

54.

What happens to the volume of the balloon if the temperature increased ?

a)

The volume will increase

b)

The volume will decrease

c)

There will be more energy

d)

There will be less gas pressure

55.

What happen to the pressure if you in a gas if you compressed it in to a volume that was one-third the size ?

a)

The pressure will increase one- third because pressure and volume are inversely proportional

b)

The pressure will decrease by one-third of its original volume

c)

The pressure will increase three times

d)

The pressure will decrease three times

56.

Why the bicycle tyre does not expand like balloon ?

a)

Because the Balloon material is more elastic than bicycle tyre

b)

Because Bicycle tyre is heavier than Balloon

c)

Because the Bicycle tyre have more density than Balloon

d)

Because Bicycle tyre have more are and weight than Balloon

57.
Bernoulli’s principle states that the pressure in a fluid decreases as its velocity increases. 
a)
True
b)
False
58.
When air is moving quicker it's pressure is greater.
a)
True
b)
False
59.
Archimedes Principle states that the buoyant force acting on a submerged object is equal to the density of the fluid displaced by the object.
a)
True
b)
False
60.
The buoyant force on floating objects equals the weight of the floating object 
a)
true
b)
false
61.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
62.
What direction is the buoyant force in?
a)
Downward
b)
Left
c)
Right
d)
Upward
63.
Archimedes' Principle states that... 
a)
The buoyant force acting on an object equals the volume of the fluid displaced by the object. 
b)
The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.
c)
The buoyant force acting on an object will always be equal. 
64.
When the weight of an object is greater than the buoyant force, the object will ... 
a)
Sink
b)
Float 
c)
Expand
d)
Shrink
65.

This principle states that the faster a fluid moves, the less pressure the fluid exerts.

a)

Bernoulli's Principle

b)

Newton's Principle

c)

Pascal's Principle

d)

Archimedes' Principle

66.
If you blow air between these two balloons, the pressure between the balloons would_________.
a)
Increase
b)
Decrease
c)
Stay the same
67.

Where will air move faster - above or below an airplane wing?

a)

above

b)

below

68.

from the image below which represents the correct force of the fluid pressure on solid objects ...

a)
b)
c)
d)
e)
69.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
70.
What does buoyant mean?
a)
float
b)
push
c)
flying, yeah!!!!!!
d)
sink
71.

If the density of sea water is 1150 kgm-3 , calculate the pressure at a point 40m below sea level due to the water alone.


using formula; P = ρhg

a)

500kPa

b)

460 kPa

c)

320kPa

d)

20kPa

72.

If the upthrust is more than the weight of the body, then body will (a)   .

73.

If a body will be put in water, it will weigh

a)

more than weight in air

b)

less than weight in air

c)

same as weight in air

d)

may be more or less depending on impurities in water

74.

According to Archimedes, loss in weight is equal to

a)

weight of liquid

b)

weight of the body

c)

weight of the liquid displaced by the immersed part of the body

d)

density of liquid

75.

Upthrust is more in sea water than pure water because

a)

sea water is salty

b)

sea water has more density than pure water

c)

sea water has aquatic animals

d)

sea water has waves

76.

One application of Pascal's principle is

a)

a hydraulic car lift

b)

the flight of an airplane

c)

a speedboat's bottom slapping against the waves

d)

the buoyancy shown by ducks and other waterfowl

77.

If an object floats, the volume of displaced water is equal to the volume of

a)

the entire object

b)

the portion of the object that is above water

c)

the portion of the object that is submerged

d)

exactly half of the object

78.

What scientific rule states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?

a)

Archimedes' principle

b)

Pascal's principle

c)

Bernoulli's principle

d)

Newton's third law of motion

79.

A ship stays afloat as long as the buoyant force is

a)

less than the ship's weight

b)

equal to the ship's weight

c)

less than the ship's speed

d)

greater than the ship's speed

80.

This principle says that an increase in pressure on a confined fluid is transmitted equally to all parts of the fluid.

a)

Newton's Principle

b)

Bernoulli's Principle

c)

Archimedes' Principle

d)

Pascal's Principle

81.

Water pressure increases as

a)

depth increases

b)

gravity decreases

c)

force decreases

d)

acceleration increases

82.

What are the states of matter?

a)

solid, liquid, and juice

b)

solid and liquid

c)

solid and gas

d)

solid, liquid, and gas

83.

Pascal states that

a)

Pressure is force per unit area

b)

When velocity is higher, the pressure is lower

c)

When force is applied, the pressure is transmitted equally through the fluid

d)

Pressure transmitted is directly proportional to the force applied

84.

Which object involving pascal principle

a)
b)
c)
d)
85.

Which comparison is correct

a)

F1 = F2

b)

P1 > P2

c)

F1 > F2

d)

P1 = P2

86.

Why oil is the best fluid used in hydraulic system

a)

Oil low density

b)

Oil is incompressible

c)

Oil low specific heat capacity

d)

Oil is opaque

87.

Which statement is correct

a)

P a = P b = P c

b)

A a = A b = A c

c)

F a = F b = F c

88.

What does a hydraulic system do?

a)

decreases surface area

b)

increases velocity

c)

multiplies force

d)

decreases pressure

89.

Which lever configuration is most similar to the hydraulic system pictured?

a)
b)
c)
d)
90.
If you blow air between these two balloons, the pressure between the balloons would_________.
a)
Increase
b)
Decrease
c)
Stay the same
91.

If a hairdryer blows a stream of air between two soda cans hanging side by side, the soda cans will ____________________.

a)

rise

b)

move away from each other

c)

move toward each other

d)

not move

92.
An upward force.
a)
lift
b)
gravity
c)
life
d)
drag
93.
What happens when you heat a gas?
a)
It gains mass.
b)
It loses mass.
c)
It increases in volume.
d)
It decreases in volume.
94.

The correct formula of upthrust is

a)

h ρ\rho

b)

hg

c)

V ρ\rho g

d)

h ρ\rho g

95.

The above diagram shows a vessel called (a)   .

96.

What are the 2 things to learn in Archimedes' Principle?

a)

Density&Boyent force

b)

Density & volume

c)

Mass & volume

d)

Time & Velocity

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