Free Printable Understanding Pressure in Physics

1.

What is the definition of pressure in physics?

a)

The amount of force applied over a given distance

b)

The amount of force applied per unit area

c)

The amount of energy transferred per unit time

d)

The amount of mass per unit volume

2.

Which of the following is the SI unit of pressure?

a)

Newton (N)

b)

Pascal (Pa)

c)

Joule (J)

d)

Watt (W)

3.

Which equation correctly represents the relationship for pressure?

a)

$P = F \times A$

b)

$P = \frac{F}{A}$

c)

$P = \frac{A}{F}$

d)

$P = F + A$

4.

Which of the following is NOT a common unit of pressure?

a)

Pascal (Pa)

b)

Atmosphere (atm)

c)

Newton per meter (N/m)

d)

Torr

5.

Which of the following best describes an application of pressure in everyday life?

a)

The use of a lever to lift a heavy object

b)

The use of a hydraulic lift to raise a car

c)

The use of a pulley to change direction of force

d)

The use of a spring to store energy

6.

A force of $200\,\text{N}$ is applied uniformly over an area of $0.5\,\text{m}^2$ . What is the pressure exerted?

a)

$100\,\text{Pa}$

b)

$400\,\text{Pa}$

c)

$0.25\,\text{Pa}$

d)

$200\,\text{Pa}$

7.

Which of the following statements is true regarding atmospheric pressure?

a)

It is the same at all altitudes.

b)

It increases as altitude increases.

c)

It decreases as altitude increases.

d)

It is not affected by altitude.

8.

Which device is used to measure atmospheric pressure?

a)

Thermometer

b)

Barometer

c)

Ammeter

d)

Voltmeter

9.

A block weighing $50\,\text{N}$ rests on a table with an area of $0.25\,\text{m}^2$ . What is the pressure exerted by the block on the table?

a)

$12.5\,\text{Pa}$

b)

$200\,\text{Pa}$

c)

$0.5\,\text{Pa}$

d)

$20\,\text{Pa}$

10.

Which of the following is an example of pressure being used to increase the effectiveness of a tool?

a)

Using a wide tire on a bicycle

b)

Using a sharp knife to cut vegetables

c)

Using a thick blanket for warmth

d)

Using a large spoon to stir soup

11.

A diver descends to a depth where the water pressure is $3 \times 10^5\,\text{Pa}$ . If the atmospheric pressure at the surface is $1 \times 10^5\,\text{Pa}$ , what is the total pressure experienced by the diver?

a)

$2 \times 10^5\,\text{Pa}$

b)

$3 \times 10^5\,\text{Pa}$

c)

$4 \times 10^5\,\text{Pa}$

d)

$1 \times 10^5\,\text{Pa}$

12.

A hydraulic press has a small piston with an area of $0.01\,\text{m}^2$ and a large piston with an area of $0.5\,\text{m}^2$ . If a force of $100\,\text{N}$ is applied to the small piston, what is the force exerted by the large piston (assuming no losses)?

a)

$500\,\text{N}$

b)

$1000\,\text{N}$

c)

$2000\,\text{N}$

d)

$5000\,\text{N}$

13.

A person stands on snow wearing boots with a total area of $0.04\,\text{m}^2$ . If the person has a mass of $80\,\text{kg}$ , what is the pressure exerted on the snow? (Take $g = 10\,\text{m/s}^2$ )

a)

$2000\,\text{Pa}$

b)

$4000\,\text{Pa}$

c)

$20,000\,\text{Pa}$

d)

$32,000\,\text{Pa}$

14.

A gas is contained in a cylinder with a movable piston. If the area of the piston is $0.2\,\text{m}^2$ and the pressure inside the cylinder is $2 \times 10^5\,\text{Pa}$ , what is the force exerted by the gas on the piston?

a)

$2 \times 10^4\,\text{N}$

b)

$4 \times 10^4\,\text{N}$

c)

$1 \times 10^4\,\text{N}$

d)

$5 \times 10^4\,\text{N}$

15.

A rectangular block has dimensions $2\,\text{m} \times 0.5\,\text{m} \times 0.2\,\text{m}$ and a mass of $100\,\text{kg}$ . If it rests on the $2\,\text{m} \times 0.5\,\text{m}$ face, what is the pressure it exerts on the ground? (Take $g = 10\,\text{m/s}^2$ )

a)

$100\,\text{Pa}$

b)

$200\,\text{Pa}$

c)

$500\,\text{Pa}$

d)

$1000\,\text{Pa}$

16.

A sealed tank contains water to a depth of $10\,\text{m}$ . If the density of water is $1000\,\text{kg/m}^3$ and $g = 10\,\text{m/s}^2$ , what is the pressure at the bottom of the tank due to the water alone?

a)

$1 \times 10^4\,\text{Pa}$

b)

$1 \times 10^5\,\text{Pa}$

c)

$1 \times 10^6\,\text{Pa}$

d)

$1 \times 10^3\,\text{Pa}$

17.

A syringe has a plunger with an area of $2 \times 10^{-4}\,\text{m}^2$ . If a nurse applies a force of $4\,\text{N}$ , what is the pressure applied to the fluid inside the syringe?

a)

$2 \times 10^4\,\text{Pa}$

b)

$4 \times 10^4\,\text{Pa}$

c)

$1 \times 10^4\,\text{Pa}$

d)

$2 \times 10^3\,\text{Pa}$

18.

A car tire is inflated to a pressure of $2.5 \times 10^5\,\text{Pa}$ . If the area of contact with the ground is $0.03\,\text{m}^2$ , what is the force exerted by the tire on the ground?

a)

$7.5 \times 10^3\,\text{N}$

b)

$8.3 \times 10^3\,\text{N}$

c)

$6.0 \times 10^3\,\text{N}$

d)

$5.0 \times 10^3\,\text{N}$

19.

A $60\,\text{kg}$ student stands on one foot. If the area of the foot in contact with the ground is $0.02\,\text{m}^2$ , what is the pressure exerted on the ground? (Take $g = 10\,\text{m/s}^2$ )

a)

$3,000\,\text{Pa}$

b)

$6,000\,\text{Pa}$

c)

$12,000\,\text{Pa}$

d)

$30,000\,\text{Pa}$

20.

A force of $500\,\text{N}$ is applied to a surface, creating a pressure of $2,500\,\text{Pa}$ . What is the area over which the force is applied?

a)

$0.2\,\text{m}^2$

b)

$0.5\,\text{m}^2$

c)

$2\,\text{m}^2$

d)

$5\,\text{m}^2$

Understanding Pressure in Physics

Total questions: 20

Worksheet time: 10mins

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