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Unit 7: Pressure & Fluids

Total questions: 45

Worksheet time: 24mins

Name
Class
Date
1.

This is the force per unit area applied to the surface area of an object:

a)

Force

b)

Pressure

c)

Area

d)

Gravity

2.

The SI unit for pressure is:

a)

Newtons

b)

Grams

c)

Pascals

d)

PSI (Pounds/inch2)

3.

One Pascal is equal to:

a)

1 N/ m2

b)

1 kg x m/s2

c)

1 g / cm3

d)

1 lb/ in2

4.

Two ways to increase pressure are:

a)

Increase force and increase surface area

b)

Decrease force and increase surface area

c)

Decrease force and decrease surface area

d)

Increase force and decrease surface area

5.

A kPa is equal to:

a)

100 Pascals

b)

1000 Pascals

c)

.001 Pascals

d)

.01 Pascals

6.

Area =

a)

Length x Width x Height

b)

1/2 Base x Height

c)

Length x Width OR Base x Height

d)

Force x Acceleration

7.

Pressure =

a)

Force / Area

b)

Force x Area

c)

Force x Acceleration

d)

Area / Force

8.

Force =

a)

Pressure / Area

b)

Area / Pressure

c)

Pressure x Area

d)

Pressure x Acceleration

9.

Area =

a)

Force / Pressure

b)

Pressure / Force

c)

Pressure x Force

d)

Length x Width x Height

10.

What is the area of a rug that is 4 meters long by 2 meters wide?

a)

2 m2

b)

0.5 m2

c)

6 m2

d)

8 m2

11.

What is the pressure of a box that has an area of 9m2 and a force of 72 N?

a)

8 Pascals

b)

8 Newtons

c)

0.125 Newtons

d)

648 Pascals

12.

What is the area of a piston that has a force of 7 N and applies a pressure of 14 Pa?

a)

2 m2

b)

2 kg

c)

0.5 m2

d)

98 cm3

13.

What is the force equal if an object applied a pressure of 10 Pa over an area of 5 m2?

a)

50 N

b)

50 kg

c)

2 N

d)

0.5 N

14.

Which of the following would be considered a fluid?

a)

Water

b)

Blood

c)

Air

d)

All of these are fluids

15.

Fluids always flow from....

a)

High pressure to Low pressure

b)

Low pressure to High pressure

c)

areas of equal pressure

d)

left to right

16.

The greater the difference in pressure the __________ fluids flow.

a)

slower

b)

faster

c)

same

d)

lower

17.

Both graduated cylinders have the same volume of water in them (50 mL) them but the water level is higher on the cylinder on the right. Which gradudated cylinder has more pressure on the bottom?

a)

The left

b)

The right

c)

They are the same

d)

They don't have any pressure

18.

Which point has the LEAST amount of pressure in the diagram?

a)

Point C

b)

Point E

c)

Point F

d)

Point G

19.

Which point has the MOST amount of pressure in the diagram?

a)

Point C

b)

Point E

c)

Point F

d)

Point G

20.

This force acts in the upward directions in fluids, making submerged objects feel lighter.

a)

Gravity

b)

Weight

c)

Buoyancy

d)

Density

21.

The weight of the fluid displaced is equal to the buoyant force on an object. This is an example of:

a)

Archimedes Principle

b)

Pascals Principle

c)

Bernoullis Principle

d)

Sigmunds Principle

22.

If the weight of the fluid displaced is GREATER than the weight of the object then the object will:

a)

Float

b)

Sink

c)

Hover

d)

Explode

23.

If the weight of the fluid displaced is LESS than the weight of the object then the object will:

a)

Float

b)

Sink

c)

Hover

d)

Implode

24.

What will happen to the object?

a)

Float

b)

Sink

c)

Hover

d)

Explode

25.

An object displaces 30 mL of fluid. The weight of the fluid displaced is 7 N. The weight of the object is 9 N. What is the volume of the object?

a)

30 cm3

b)

7 mL

c)

9 N

d)

2 mL

26.

An object displaces 30 mL of fluid. The weight of the fluid displaced is 7 N. The weight of the object is 9 N. What is the buoyant force that is acting on the object?

a)

30 N

b)

2 N

c)

7 N

d)

9 N

27.

An object displaces 30 mL of fluid. The weight of the fluid displaced is 7 N. The weight of the object is 9 N. What will happen to the object?

a)

It will float

b)

It will sink

c)

It will hover

d)

It will explode

28.

What is the density of water?

a)

1 mL

b)

1 g/mL

c)

9.8 g/mL

d)

10 cm3

29.

An object has a mass of 5 grams and a volume of 10 cm3. The density of this object is:

a)

50 g/cm3

b)

2 g/cm3

c)

2 mL

d)

0.5 g/cm3

30.

An object has a mass of 12 grams and a volume of 4 cm3. This object will _______ in water.

a)

float

b)

sink

c)

hover

d)

implode

31.

What will happen to the object?

a)

Float

b)

Sink

c)

Hover

d)

Explode

32.

What will happen to the object?

a)

Float

b)

Sink

c)

Hover

d)

Explode

33.

Two ways to increase the density of an object is to:

a)

Increase the mass and increase the volume

b)

Increase the mass and decrease the volume.

c)

Decrease the mass and increase the volume.

d)

Decrease the mass and decrease the volume.

34.

When a force is applied to a confined fluid, an increase in pressure is transmitted equally throughout the fluid. This is:

a)

Archimedes Principle

b)

Pascals Principle

c)

Bernoullis Principle

d)

Newtons Principle

35.

Hydraulic systems are designed to take advantage of:

a)

Archimedes Principle

b)

Pascals Principle

c)

Bernoullis Principle

d)

Sigmunds Principle

36.

What is the pressure on the left piston?

a)

10 N

b)

50 Pa

c)

2 Pa

d)

4 Pa

37.

If the pressure is 2 Pa on the left piston, what is the pressure on the right piston?

a)

10 N

b)

50 Pa

c)

2 Pa

d)

4 Pa

38.

If the pressure is 2 Pa on the right piston, what is the force on the right piston?

a)

10 N

b)

20 N

c)

4 Pa

d)

40 N

39.

When the speed of a fluid increases, the pressure on the fluid decreases. This is:

a)

Archimedes Principle

b)

Pascals Principle

c)

Bernoullis Principle

d)

Hartman's Principle

40.

When the speed of a fluid increases, the pressure on the fluid:

a)

increases

b)

decreases

c)

remains the same

d)

becomes zero

41.

Where is the pressure the greatest in this diagram?

a)

below the wing

b)

above the wing

c)

to the left of the wing

d)

to the right of the wing

42.

When the temperature of a gas at a constant pressure is increased, it’s volume:

a)

Remains the same

b)

Increases

c)

Decreases

43.

When the pressure of a gas at a constant temperature is increased, the volume of the gas:

a)

Remains the same

b)

Increases

c)

Decreases

44.

This graph represents:

a)

Charles' Law

b)

Boyle's Law

c)

Pascal's Principle

d)

Bernoulli's Principle

45.

This graph represents:

a)

Charles' Law

b)

Boyle's Law

c)

Archimede's Principle

d)

Bernoulli's Principle

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