Free Printable Work, power and energy

1.

Which situation is work not done?

a)

lifting a 20 pound box off the floor

b)

holding a 20 pound box above the floor

c)

sliding a 20 pound box across the floor

d)

sliding a 20 pound box up an inclined plane

2.

Kinetic energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

3.

Potential energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

4.

The SI Unit for Energy is

a)

Joule

b)

Newton

c)

Calorie

d)

Watt

5.

Energy of a rock perched on a cliff is an example of...

a)

gravitational

b)

elastic

c)

chemical

d)

kinetic

6.

Gravitational potential energy depends on the ________ and ________ of the object.

a)

Height and mass

b)

Friction and movement

c)

Mass and Movement

d)

Height and Friction

7.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

all of the above

8.

Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?

a)

100 watts

b)

400 watts

c)

104 watts

d)

50 watts

9.

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

a)

18 m

b)

4 m

c)

10 m

d)

6 m

10.

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

a)

200 J

b)

80 J

c)

5 J

d)

2000 J

11.

Suppose a cart has a kinetic energy of 0.5 J. If you add enough mass to double the mass and make the cart go three times as fast, its kinetic energy is now ---.

a)

6 J

b)

3 J

c)

18 J

d)

9 J

12.

A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs?

a)

400 J

b)

1200 J

c)

200 J

d)

120 J

13.

Energy of a rock perched on a cliff is an example of...

a)

gravitational

b)

elastic

c)

chemical

d)

kinetic

14.

Kinetic energy depends on the ________ and ________ of the object.

a)

Height and Mass

b)

Spring constant and Distance away from equilibrium

c)

Mass and Velocity

d)

Height and Friction

15.

Definition: the transfer of energy that occurs when a force moves an object

a)

power

b)

energy

c)

work

d)

Efficiency

16.

If the amount of time to takes to move a box up the stairs decreases, what happens to power?

a)

decreases

b)

increases

c)

stays the same

17.

If the amount of time to takes to move a box up the stairs decreases, what happens to the amount of work?

a)

decreases

b)

increases

c)

stays the same

18.

Energy of Motion

a)

kinetic

b)

potential

c)

power

d)

efficiency

19.

When using a machine, what would you call the work done by the machine?

a)

work in

b)

work out

c)

distance in

d)

distance out

e)

efficiency

20.

When using a machine, what would you call the height moved by the weight?

a)

work in

b)

work out

c)

distance in

d)

distance out

e)

efficiency

21.

The efficiency of a ramp is 86.7%. If the ramp does 65 J of work, how much work have you done?

a)

more than the work done by the ramp

b)

less than the work done by the ramp

c)

the same amount of work done by the ramp

22.

The efficiency of a ramp is 86.7%. If the ramp does 65 J of work, how much work have you done?

a)

1.33 J

b)

74.97 J

c)

5635.5 J

d)

56.35 J

23.

Which situation below is work not being done ?

a)

lifting a box off the floor

b)

carrying a box of pizza across the room

c)

pushing a car that does not move

d)

pulling a sled across snow

24.

What is the correct formula to use if calculating the amount of work done ?

a)

Work = distance / time

b)

Work = mass x velocity

c)

Work = force x distance

d)

Work = force / time

25.

The metric unit for measuring the amount of work done is called the : (equivalent to a Newton-meter)

a)

Kilogram

b)

Crooke

c)

Watt

d)

Joule

26.

The amount of work done over a given time period is called

a)

momentum

b)

efficiency

c)

energy

d)

power

27.

Which is an example of kinetic energy ?

a)

a coiled spring

b)

a rolling bowling ball

c)

an arrow pulled back in a bow

d)

water behind a dam

28.

Another name for thermal energy is :

a)

ultraviolet energy

b)

light

c)

radar

d)

heat

29.

The movement of electrons through a conductor is an example of :

a)

electrical energy

b)

mechanical energy

c)

nuclear energy

d)

thermal energy

30.

A battery would best be an example of :

a)

thermal energy

b)

chemical energy

c)

mechanical energy

d)

nuclear energy

31.

Which of these is not an example of mechanical energy ?

a)

a horse pulling a cart

b)

a jogger running a marathon

c)

a windmill

d)

energy produced on the sun

32.

Which of these is not an example of electromagnetic energy

a)

radio waves

b)

light waves

c)

x-rays

d)

wind

33.

Pick which equation you would use to solve:
100 J of work were done over 5 seconds to do three push ups.

a)

$PE=mgh$

b)

KE\ =\frac{1}{2}mv^2

c)

$W=Fx$

d)

$P=\frac{W}{t}$

34.

Pick which equation you would use to solve:

A rock of 5kg, is dropped from a height of 5 meters and accelerates to the ground at a rate of 9.81m/s^2.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

35.

Pick which equation you would use to solve:

A tennis ball with a mass of 1kg is falling to the ground at 9.81 m/s^2. The distance it covers is 2meters.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

36.

Pick which equation you would use to solve:

A box is pushed a distance of 3m with a force of 10N.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

37.

Pick which equation you would use to solve:

A car with a mass of 1200kg has a velocity of 20m/s.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

38.

Pick which equation you would use to solve:

Running up a flight of stairs took 500J of work and was done in 10 seconds.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

39.

Pick which equation you would use to solve:

A 15kg fox ran after a rabbit with a velocity of 30m/s over a distance of 50m.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

40.

Pick which equation you would use to solve:

When you do a push up your body travels a distance of 0.5m and the force applied is 600N.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

41.

Pick which equation you would use to solve:

To do one repetition of a burpee, it takes 500 J of work over 6seconds.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

42.

Pick which equation you would use to solve:

A toy car is pushed with a force of 5N a distance of 2.5 meters.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

43.

Pick which equation you would use to solve:

A 1.5kg pendulum is placed on Mars. It falls with an acceleration of 3.7m/s^2 a distance of 2meters.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

44.

Pick which equation you would use to solve:

A 50kg sea turtle swims with a velocity of 2m/s.

a)

$PE=mgh$

b)

$KE=\frac{1}{2}mv^2$

c)

$W=Fx$

d)

$P=\frac{W}{t}$

45.

How much work was produced from a box being pushed with a force of 50N a distance of 2m?

(a)

46.

How much power is generated from 75 J worth of work if it took 5 seconds.

(a)

47.

What is the potential energy of a 4kg apple falls from a height of a 5 meter tree at an acceleration due to gravity of 10 m/s^2

(a)

48.

In the formula, what does W represent?

a)

work

b)

force

c)

distance

d)

watt

49.

In the formula, what does F represent?

a)

work

b)

force

c)

distance

d)

watt

50.

In the formula, what does d represent?

a)

work

b)

force

c)

distance

d)

watt

51.

In the formula, what does P represent?

a)

power

b)

work

c)

time

d)

watt

52.

In the formula, what does W represent?

a)

work

b)

power

c)

time

d)

watt

53.

In the formula, what does t represent?

a)

time

b)

work

c)

power

d)

watt

54.

What is the SI unit for distance?

a)

meter

b)

kilometer

c)

newton

d)

centimeter

55.

What is the SI unit for time?

a)

second

b)

minute

c)

hour

d)

meter per second

56.

What is the SI unit for speed?

a)

meter per second

b)

meter per second squared

c)

meter

d)

second

57.

What is the SI unit for mass?

a)

kilogram

b)

gram

c)

pound

d)

newton

58.

What is the SI unit for acceleration?

a)

meter per second squared

b)

meter per second

c)

meter

d)

second

59.

What is the SI unit for force?

a)

newton

b)

pound

c)

kilogram

d)

meter

60.

What is the SI unit for energy?

a)

joule

b)

watt

c)

newton

d)

kilogram

61.

What is the SI unit for work?

a)

joule

b)

watt

c)

newton

d)

kilogram

62.

What is the SI unit for power?

a)

watt

b)

joule

c)

newton

d)

kilogram

63.

Energy is

a)

the ability to do work.

b)

the rate at which work is done.

c)

the force applied to an object for a distance.

d)

none of the above.

64.

Work is

a)

the ability to do work.

b)

the rate at which work is done.

c)

the force applied to an object for a distance.

d)

none of the above.

65.

Using the formula provided, calculate the power generated when a person performs 100 J of work for 10 seconds.

a)

10 W

b)

10 J

c)

1000 W

d)

1000 J

66.

What is science?

a)

The study of the natural world through observations and logical reasoning.

b)

The study of the universe through experiments and research.

c)

Fake News.

d)

The study of matter and its interactions.

67.

The equation for work is

a)

work = power x mass

b)

work = power / time

c)

work = force x distance

d)

work = distance x time

68.

The equation for POWER is

a)

power = mass x time

b)

power = work / time

c)

power = time / work

d)

power = work x time

69.

The equation for KINETIC ENERGY is

a)

KE = mass x gravity

b)

KE = 1/2 height x speed

c)

KE = mass²

d)

KE = 1/2 mass x speed²

70.

The product of the net force on an object and the distance through which the object is moved

a)

joule

b)

power

c)

work

d)

energy

71.

_______________ is done when a force acts on an object and the object moves in the direction of the force.

a)

Work

b)

Kinetic energy

c)

Watt

d)

Joule

72.

The unit for work (aka Newton-meter)

a)

Watt

b)

Power

c)

Work

d)

Joule

73.

________________ is the rate at which work is done.

a)

Power

b)

Work

c)

Time

d)

Energy

74.

The unit of power (aka Joule per second)

a)

Joule

b)

Minute

c)

Watt

d)

Pound

75.

Energy cannot be ________ or ___________.

a)

big/small

b)

left/right

c)

created/destroyed

d)

made/transferred

76.

Which statement does not illustrate power?

a)

A farmer plowing the rice field all day.

b)

A Siberian husky pulling a sled all day.

c)

A principal sitting on a chair while observing several classes all day.

d)

A teacher encoding his power point presentation in his laptop all day.

77.

Who has the most power?

a)

Ms Criza who encodes her observation tools using 12000J of work in 20 minutes.

b)

Sir Pau who studies his 5 lessons for the next classes in 15 minutes.

c)

Mrs Punzalan who used 50N force to inoculate mushrooms at a speed of 2m/s.

d)

Mrs Masalunga who watches her learners while taking their quiz in 30 minutes.

78.

Which statement illustrates work done?

a)

A weightlifter holds a barbell above her head.

b)

A teacher applies a force to a wall and becomes exhausted.

c)

A rolling marble hits a note card and moves it across a table.

d)

A waiter carries a tray full of meals across a dining room at a constant speed.

79.

A construction worker pushes a wheelbarrow 13 m with a horizontal force of 45 N. How much work is done by the worker on the wheelbarrow?

a)

6.9 J

b)

135 J

c)

65 J

d)

585 J

80.

A horizontal force of 150 N is applied to move a television set across a 6 m level surface. What is the work done by the 150 N force on the television set?

a)

450 J

b)

30 J

c)

900 J

d)

75 J

Work, power and energy

Total questions: 80

Worksheet time: 4hrs 31mins

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