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Work and Energy Quiz

Total questions: 273

Worksheet time: 7hrs 30mins

Name
Class
Date
1.

What is work?

a)

the product of force and distance

b)

the product of force and power

c)

the product of force and acceleration

2.

What is the unit for work?

a)

joule

b)

Newton

c)

Watt

3.

A basket of apples weighs 12 N. If the basket is lifted by a grocer a distance of 0.8 m, how much work does the grocer do?

a)

10J

b)

9.2J

c)

9.6J

4.

A dozen bagels weighs 11 N. If the bag is lifted a distance of 1.5 m, how much work is done?

a)

17.9J

b)

15.5J

c)

16.5J

5.

What is power?

a)

Rate of travelling a distance

b)

The rate of doing work

c)

The duration of a force

6.

What is the unit for power?

a)

joule

b)

newton

c)

watt

7.

A human brain does 700 J of work in 35 s. How much power do you use?

a)

120W

b)

200W

c)

20W

8.

A streetlight does 4800 J of work in 60 s. How much power do you use?

a)

80W

b)

90W

c)

100W

9.

You do 1500 J of work in 60 s. How much power do you use?

a)

35W

b)

25W

c)

29W

10.

You do 420 J of work in 20 s. How much power do you use?

a)

25W

b)

21W

c)

19W

11.

What happens to the amount of power expended when you are climbing stairs and then climb faster?

a)

it increases

b)

it decreases

c)

it stays the same

12.

What is a machine?

a)

Device that changes force

b)

Device that lowers the efficiency of the work

c)

Device that increase the friction

13.

What happens to the total amount of work done when you use a machine compared to not using a machine?

a)

it increases

b)

it decreases

c)

it stays the same

14.

Which simple machines are found on a hammer?

a)

wedge and inclined plane

b)

screw and pulley

c)

wedge and lever

15.

A ramp in a building is an example of which machine?

a)

wedge

b)

lever

c)

inclined plane

16.

A nail is an example of which machine?

a)

wedge

b)

pulley

c)

wheel and axle

17.

On what point does a lever pivot?

a)

load

b)

arm

c)

fulcrum

18.

An ax is an example of what simple machine?

a)

pulley

b)

wedge

c)

inclined plane

d)

wheel and axle

19.

What simple machine is this?

a)

pulley

b)

lever

c)

wheel and axle

d)

wedge

20.

A knife is an example of a (an)

a)

inclined plane

b)

ramp

c)

wedge

d)

pulley

21.

Which of these is NOT a wheel and axle?

a)

pizza cutter

b)

windmill

c)

doorknob

d)

ramp

22.

Which is not a type of simple machine?

a)

spring

b)

pulley

c)

screw

d)

wedge

23.

Work is...

a)

energy from the sun

b)

a force that moves an object

c)

a type of machine

d)

a force that pulls you toward the earth

24.

What type of simple machine is found on the cap of a pickle jar?

a)

lever

b)

inclined plane

c)

pulley

d)

screw

25.

Which of these is not an example of an inclined plane?

a)

ladder

b)

stairs

c)

wall

d)

exit ramp

26.

Which type of simple machine would be found on the bottom of a wagon?

a)

pulley

b)

screw

c)

wedge

d)

wheel and axle

27.

Which of the following is an example of work being done?

a)

Teacher sitting in a chair

b)

book resting on desk

c)

keys hanging from a key chain

d)

a ball being rolled on the floor

28.

If a student uses 10 Newtons of Force to push a chair 5 meters, how much work is being done?

a)

2J

b)

0.5J

c)

50J

d)

20N

29.

If a lion drags his prey 10 meters to his den doing 500 joules of work, how much force did he use?

a)

50N

b)

500J

c)

50,000N

d)

10N

30.

True or false: the following is an example of work. A teacher applies a force to a wall and becomes exhausted.

a)

True

b)

False

31.

What is resistance (output) force?

a)

The force required by a machine in order to accomplish work (the force you put on the machine)

b)

The force that is exerted by a machine

c)

The force the machine exerts on an object

d)

The output work times the input distance

32.

What does one newton exerted over a distance of one meter equal?

a)

One watt

b)

One hertz

c)

One volt

d)

One joule

33.

Which of these is a measure of force?

a)

100N

b)

100m/s

c)

100J

d)

100W

34.

What is the unit for time?

a)

newton

b)

joule

c)

seconds

d)

watt

35.

45 J of work were done on the object that moved 5 meters. How much force was applied to the object?

a)

8N

b)

9N

c)

225N

d)

0N

36.

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

a)

0.125 s

b)

64800 s

c)

8 s

d)

80 s

37.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
38.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
39.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
40.

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

a)

Yes, work was done

b)

No, work wasn't done

41.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
42.

If you increase your work and decrease your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

43.

If you have the same work as someone, but in less time

a)

You are more powerful

b)

You are less powerful

c)

You have the same power

44.

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

a)

Person A

b)

Person B

45.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
46.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
47.
The more POWER you use to move an object, the more work you do. 
a)
True
b)
False
48.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
49.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
50.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
51.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
52.
True or false
You do work only when you exert a force on an object and move it
a)
true
b)
false
53.
Two factors that determine work are
a)
size of the force, and distance
b)
size of the force, and type of force
c)
mass, and distance
54.
work is a measurement of how much force is applied over a certain
a)
distance
b)
velocity
c)
shape
d)
size
55.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
56.
if you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N 
d)
30 N
57.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
58.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
59.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

60.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
61.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
62.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
63.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
64.
P=25 watts 
W=5000 Joules 
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
65.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
66.
Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.
a)
energy
b)
time
c)
work
d)
elasticity
67.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
68.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
69.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

70.
In which of these cases is work being done? 
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student carries his chair into another room
d)
A student sits on the carpet
71.
True or false: when the distance an object moves is zero the work done on the object is also zero.  
a)
True
b)
False
72.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
73.

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

a)

Yes, work was done

b)

No, work wasn't done

74.

What would 54N be an example of?

a)

work

b)

power

c)

distance

d)

force

75.

what would 1m be an example of?

a)

work

b)

power

c)

time

d)

distance

76.

what would 14J be an example of?

a)

work

b)

distance

c)

time

d)

force

77.

What is an example of a force?

a)

Energy

b)

Power

c)

Pressure

d)

Weight

78.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
79.

If you increase your work and decrease your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

80.

What would you solve for if given time and work?

a)

power

b)

force

c)

distance

d)

work

81.

what would you solve for if given distance and force?

a)

work

b)

power

c)

time

d)

motion

82.

What would you solve for if you were given work and distance

a)

power

b)

time

c)

force

d)

motion

83.

If you have the same work as someone, but in less time

a)

You are more powerful

b)

You are less powerful

c)

You have the same power

84.

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

a)

Person A

b)

Person B

85.
A kid throws a ball with a force of 70N over 1.1 meters. How much work did he do?
a)
77 joules
b)
70 joules
c)
7.7 joules
d)
11 joules
86.
Which of the following is true about work?
a)
It measures how quickly an object accelerates
b)
It measures how much effort is applied over a distance.
c)
It measures the change of an object's rate of speed.
d)
It measures how much time it takes to move an object.
87.

A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has she done?

a)

600 J

b)

450 J

c)

900 J

d)

1200 J

88.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
89.

You move a 8 N object five meters in 4 seconds. How much power have you generated?

a)

160 watts

b)

10 watts

c)

6.4 watts

d)

17 watts

90.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
91.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
92.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
93.

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

94.

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

95.

A cannon shoots a 1000 N stunt performer 100 m. How much work is done on the performer?

a)

100,000 J

b)

10,000 J

c)

10 J

d)

1,000,000 J

96.

A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?

a)

50J

b)

50W

c)

500J

d)

500W

97.

Jane carries a 5 kg box and Lorie carries a 10 kg box up a set of stairs, who did more work?

a)

Jane because his box was lighter.

b)

Lorie because her box weighed more.

c)

Can't tell.

98.

How much power is generated by Ashley (50 kg) running up a 6 m flight of stairs in 5 seconds?

a)

60 W

b)

62 W

c)

600 W

d)

1500 W

99.

Work is done only if

a)

a force is applied.

b)

the force applied causes the object's motion.

c)

an object is in motion.

100.

What is an equivalent formula for force?

a)

F=d×tF=d\times t

b)

a=Fma=\frac{F}{m}

c)

F=WdF=\frac{W}{d}

d)

m=F×am=F\times a

101.

Work is measured in which units?

a)

Newtons

b)

Joules

c)

Watts

d)

Joule/sec

102.

A force applied on a block accelerates across a horizontal, frictionless surface. The energy gained by the block is equal to which?

a)

the momentum given to the block

b)

the work done on the block

c)

the power applied to the block

d)

the impulse applied to the block

103.

Power is measured in which units?

a)

Newtons

b)

Joules

c)

Watts

d)

Joule/sec

104.
Which of the following is a true statement about work?
a)
It measures how quickly an object accelerates 
b)
It measures how much effort is applied over a certain distance
c)
It measures the change in an object's rate of speed
d)
It measures how much time it takes to move a massive object
105.

____ is being done when a force is exerted on a wagon while it is being pulled up a hill.

a)

Power

b)

Force

c)

Work

106.
Which of these is a measure of force?
a)
100 newtons
b)
100 meters per second
c)
100 joules
d)
100 watts
107.

A strongman exerts 1500 N on the side of a building. After 2 minutes, the building doesn't move. How much work did he do?

a)

180,000 J

b)

0 J

c)

750 J

d)

1500 J

108.

You use 950 J of energy to push a sofa. If it took you 5 sec to move the sofa, what was your power?

a)

190 J

b)

4750 J

c)

4750 W

d)

190 W

109.

If 360 J of work is needed to move a crate a distance of 4 m, what is the weight of the crate?

a)

90 N

b)

720 N

c)

90 kg

d)

720 W

110.

A runner exerts 240,000 J when she runs for 10 min. What is the runner's power?

a)

400 W

b)

600 W

c)

400 J

d)

600 J

111.
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 
a)
77 J
b)
7.7 J 
c)
0.7 J 
d)
770 J 
112.

A box is pushed across the floor a distance of 8 m with a force of 55 N in 7 s. What is the work done?

a)

440 J

b)

440 W

c)

62.9 J

d)

62.9 W

113.

The power rating of an electric lawnmower is 3000 W. If the lawnmower is used for 60 sec, how many joules of work can it do?

a)

270,000 W

b)

270,000 J

c)

180,000 J

d)

33.3 W

114.

A 400 N object is in a 32,000 N elevator that rises 30 m in 2 min. How much power is needed for the elevator's trip?

a)

8100 J

b)

972,000 J

c)

972,000 W

d)

8100 W

115.

A student who weighs 350 N climbs a flight of stairs 6 m high in 10 sec. How much power does the student need to do this?

a)

35.6 J

b)

35.6 W

c)

210 W

d)

583 J

116.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
117.
You move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know?
a)
The mass of the box
b)
The slope of the ramp 
c)
The direction the box moved
d)
How long the task took
118.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
119.
An Xbox consumes 15.7 watts while in standby mode. If you leave it in standby mode for 86,400 seconds (one day), how much work was done?
a)
1,356,490 J
b)
1,356,480 J
c)
1,356,470 J
d)
1,356,460 J
120.
Work divided by time equals...
a)
energy
b)
power
121.
The unit of work is the ...
a)
joule
b)
force
122.
The unit of power is the...
a)
work
b)
watt
123.
Force multiplied by distance equals...
a)
work
b)
power
124.
Work is done on an object when the object moves in the SAME direction in which the force is applied.
a)
True
b)
False
125.
If you pull at an angle instead of in the direction in which the object moves, MORE of your force does work.
a)
True
b)
False
126.
The FARTHER you move an object, the more work you do.
a)
True
b)
False
127.
The more POWER you use to move an object, the more work you do. 
a)
True
b)
False
128.
If you lift a box from the floor to a height of 1m and then carry the for for 10m, you do work only when you CARRY the box.
a)
True
b)
False
129.
Power is the RATE at which work is done. 
a)
True
b)
False
130.

units for work are

a)

newtons

b)

joules

c)

meters

d)

seconds

131.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

132.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
133.
What is the formula for work?
a)
Force = work x distance
b)
Distance = force x work
c)
Work = force x distance
d)
Work = force x mass
134.

The equation for POWER is

a)

power = mass x time

b)

power = work / time

c)

power = time / work

d)

power = work x time

135.

_______________ 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

136.

________________ is the rate at which work is done.

a)

Power

b)

Work

c)

Time

d)

Energy

137.

The unit of power (aka Joule per second)

a)

Joule

b)

Minute

c)

Watt

d)

Pound

138.

This theorem states, "The net work done on an object is equal to the change in its kinetic energy"

a)

Work-Energy Theorem

b)

Paul-Newman Theorem

c)

Action-Reaction Theorem

d)

Study-Now Theorem

139.

"The mechanical energy of a system neither increases nor decreases in any process. It stays constant and is conserved." this is...

a)

Work-energy theorem

b)

Law of conservation of energy

c)

Newton's second law of motion

d)

King's theorem of energy

140.

What is the relationship between Power and Work?

a)

Power is the rate which Work is done

b)

Work is not related to Power

c)

Power is the result of work times the time it takes to complete it

141.

Brutus is a weightlifter. He completes a lift in 3.5 s, what is the power of Brutus, if he performed 660.0J of work?

a)

2310 J

b)

He performs no work

c)

189 J

142.

What is work (W) in the context of physics?

a)

The amount of effort put into a task

b)

The transfer of energy that occurs when a force makes an object move

c)

The distance an object travels

d)

The time taken to complete a task

143.

What unit is used to measure work in physics?

a)

Newton

b)

Pascal

c)

Joule

d)

Watt

144.

Which two conditions must be met for work to be done according to physics?

a)

Object must move and force must be applied in the direction of the movement

b)

Force must be applied and object must be heavy

c)

Object must move and work must be done in a short time

d)

Work must be done quickly and efficiently

145.

What does the equation W = Fd represent in physics?

a)

W = weight, F = friction, d = duration

b)

W = work, F = force, d = distance

c)

W = watt, F = frequency, d = diameter

d)

W = wave, F = field, d = depth

146.

What are the units for work, force, and distance respectively?

a)

Newtons, Joules, Meters

b)

Joules, Newtons, Kilometers

c)

Joules, Newtons, Meters

d)

Watts, Joules, Meters

147.

What does the symbol 'P' represent in the context of the given material?

a)

Pressure

b)

Probability

c)

Power

d)

Pulse

148.

What is the unit of power as mentioned in the learning material?

a)

Newton

b)

Joule

c)

Watt

d)

Pascal

149.

According to the formula provided, power is calculated as work done divided by what?

a)

Force

b)

Distance

c)

Time

d)

Velocity

150.

What is the unit of work as used in the formula for power?

a)

Newton-meter

b)

Joule

c)

Watt

d)

Kilogram

151.

What is the unit of time used in the formula for calculating power?

a)

Seconds

b)

Minutes

c)

Hours

d)

Milliseconds

152.

Match the following units

a)

W

1.

work

b)

F

2.

force

c)

d

3.

distance

d)

P

4.

power

e)

t

5.

time

153.

Match the following Units to their symbol

a)

Power (P)

1.

J/s or W

b)

Work (W)

2.

J

c)

Time (t)

3.

s

d)

Force (F)

4.

N

e)

Distance (d)

5.

m

154.
Which of the following is a true statement about work?
a)
It measures how quickly an object accelerates 
b)
It measures how much effort is applied over a certain distance
c)
It measures the change in an object's rate of speed
d)
It measures how much time it takes to move a massive object
155.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
156.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
157.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
158.

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

a)

Yes, work was done

b)

No, work wasn't done

159.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
160.

If you increase your work and decrease your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

161.

If you have the same work as someone, but in less time

a)

You are more powerful

b)

You are less powerful

c)

You have the same power

162.

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

a)

Person A

b)

Person B

163.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
164.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
165.
The more POWER you use to move an object, the more work you do. 
a)
True
b)
False
166.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
167.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
168.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
169.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
170.
True or false
You do work only when you exert a force on an object and move it
a)
true
b)
false
171.
Two factors that determine work are
a)
size of the force, and distance
b)
size of the force, and type of force
c)
mass, and distance
172.
work is a measurement of how much force is applied over a certain
a)
distance
b)
velocity
c)
shape
d)
size
173.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
174.
if you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N 
d)
30 N
175.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
176.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
177.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

178.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
179.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
180.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
181.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
182.
P=25 watts 
W=5000 Joules 
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
183.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
184.
Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.
a)
energy
b)
time
c)
work
d)
elasticity
185.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
186.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
187.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

188.
In which of these cases is work being done? 
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student carries his chair into another room
d)
A student sits on the carpet
189.
True or false: when the distance an object moves is zero the work done on the object is also zero.  
a)
True
b)
False
190.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
191.

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

a)

Yes, work was done

b)

No, work wasn't done

192.

What would 54N be an example of?

a)

work

b)

power

c)

distance

d)

force

193.

what would 1m be an example of?

a)

work

b)

power

c)

time

d)

distance

194.

what would 14J be an example of?

a)

work

b)

distance

c)

time

d)

force

195.

What is an example of a force?

a)

Energy

b)

Power

c)

Pressure

d)

Weight

196.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
197.

If you increase your work and decrease your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

198.

What would you solve for if given time and work?

a)

power

b)

force

c)

distance

d)

work

199.

what would you solve for if given distance and force?

a)

work

b)

power

c)

time

d)

motion

200.

What would you solve for if you were given work and distance

a)

power

b)

time

c)

force

d)

motion

201.

If you have the same work as someone, but in less time

a)

You are more powerful

b)

You are less powerful

c)

You have the same power

202.

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

a)

Person A

b)

Person B

203.
A kid throws a ball with a force of 70N over 1.1 meters. How much work did he do?
a)
77 joules
b)
70 joules
c)
7.7 joules
d)
11 joules
204.
Which of the following is true about work?
a)
It measures how quickly an object accelerates
b)
It measures how much effort is applied over a distance.
c)
It measures the change of an object's rate of speed.
d)
It measures how much time it takes to move an object.
205.

A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has she done?

a)

600 J

b)

450 J

c)

900 J

d)

1200 J

206.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
207.

You move a 8 N object five meters in 4 seconds. How much power have you generated?

a)

160 watts

b)

10 watts

c)

6.4 watts

d)

17 watts

208.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
209.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
210.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
211.

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

212.

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

213.

A cannon shoots a 1000 N stunt performer 100 m. How much work is done on the performer?

a)

100,000 J

b)

10,000 J

c)

10 J

d)

1,000,000 J

214.

A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?

a)

50J

b)

50W

c)

500J

d)

500W

215.

Jane carries a 5 kg box and Lorie carries a 10 kg box up a set of stairs, who did more work?

a)

Jane because his box was lighter.

b)

Lorie because her box weighed more.

c)

Can't tell.

216.

How much power is generated by Ashley (50 kg) running up a 6 m flight of stairs in 5 seconds?

a)

60 W

b)

62 W

c)

600 W

d)

1500 W

217.

Work is done only if

a)

a force is applied.

b)

the force applied causes the object's motion.

c)

an object is in motion.

218.

What is an equivalent formula for force?

a)

F=d×tF=d\times t

b)

a=Fma=\frac{F}{m}

c)

F=WdF=\frac{W}{d}

d)

m=F×am=F\times a

219.

Work is measured in which units?

a)

Newtons

b)

Joules

c)

Watts

d)

Joule/sec

220.

A force applied on a block accelerates across a horizontal, frictionless surface. The energy gained by the block is equal to which?

a)

the momentum given to the block

b)

the work done on the block

c)

the power applied to the block

d)

the impulse applied to the block

221.

Power is measured in which units?

a)

Newtons

b)

Joules

c)

Watts

d)

Joule/sec

222.
Which of the following is a true statement about work?
a)
It measures how quickly an object accelerates 
b)
It measures how much effort is applied over a certain distance
c)
It measures the change in an object's rate of speed
d)
It measures how much time it takes to move a massive object
223.

____ is being done when a force is exerted on a wagon while it is being pulled up a hill.

a)

Power

b)

Force

c)

Work

224.
Which of these is a measure of force?
a)
100 newtons
b)
100 meters per second
c)
100 joules
d)
100 watts
225.

A strongman exerts 1500 N on the side of a building. After 2 minutes, the building doesn't move. How much work did he do?

a)

180,000 J

b)

0 J

c)

750 J

d)

1500 J

226.

You use 950 J of energy to push a sofa. If it took you 5 sec to move the sofa, what was your power?

a)

190 J

b)

4750 J

c)

4750 W

d)

190 W

227.

If 360 J of work is needed to move a crate a distance of 4 m, what is the weight of the crate?

a)

90 N

b)

720 N

c)

90 kg

d)

720 W

228.

A runner exerts 240,000 J when she runs for 10 min. What is the runner's power?

a)

400 W

b)

600 W

c)

400 J

d)

600 J

229.
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 
a)
77 J
b)
7.7 J 
c)
0.7 J 
d)
770 J 
230.

A box is pushed across the floor a distance of 8 m with a force of 55 N in 7 s. What is the work done?

a)

440 J

b)

440 W

c)

62.9 J

d)

62.9 W

231.

The power rating of an electric lawnmower is 3000 W. If the lawnmower is used for 60 sec, how many joules of work can it do?

a)

270,000 W

b)

270,000 J

c)

180,000 J

d)

33.3 W

232.

A 400 N object is in a 32,000 N elevator that rises 30 m in 2 min. How much power is needed for the elevator's trip?

a)

8100 J

b)

972,000 J

c)

972,000 W

d)

8100 W

233.

A student who weighs 350 N climbs a flight of stairs 6 m high in 10 sec. How much power does the student need to do this?

a)

35.6 J

b)

35.6 W

c)

210 W

d)

583 J

234.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)
30 watts
b)
3 watts
c)
120 watts
d)
270 watts
235.
You move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know?
a)
The mass of the box
b)
The slope of the ramp 
c)
The direction the box moved
d)
How long the task took
236.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
237.
An Xbox consumes 15.7 watts while in standby mode. If you leave it in standby mode for 86,400 seconds (one day), how much work was done?
a)
1,356,490 J
b)
1,356,480 J
c)
1,356,470 J
d)
1,356,460 J
238.
Work divided by time equals...
a)
energy
b)
power
239.
The unit of work is the ...
a)
joule
b)
force
240.
The unit of power is the...
a)
work
b)
watt
241.
Force multiplied by distance equals...
a)
work
b)
power
242.
Work is done on an object when the object moves in the SAME direction in which the force is applied.
a)
True
b)
False
243.
If you pull at an angle instead of in the direction in which the object moves, MORE of your force does work.
a)
True
b)
False
244.
The FARTHER you move an object, the more work you do.
a)
True
b)
False
245.
The more POWER you use to move an object, the more work you do. 
a)
True
b)
False
246.
If you lift a box from the floor to a height of 1m and then carry the for for 10m, you do work only when you CARRY the box.
a)
True
b)
False
247.
Power is the RATE at which work is done. 
a)
True
b)
False
248.

units for work are

a)

newtons

b)

joules

c)

meters

d)

seconds

249.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

250.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
251.
What is the formula for work?
a)
Force = work x distance
b)
Distance = force x work
c)
Work = force x distance
d)
Work = force x mass
252.

The equation for POWER is

a)

power = mass x time

b)

power = work / time

c)

power = time / work

d)

power = work x time

253.

_______________ 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

254.

________________ is the rate at which work is done.

a)

Power

b)

Work

c)

Time

d)

Energy

255.

The unit of power (aka Joule per second)

a)

Joule

b)

Minute

c)

Watt

d)

Pound

256.

This theorem states, "The net work done on an object is equal to the change in its kinetic energy"

a)

Work-Energy Theorem

b)

Paul-Newman Theorem

c)

Action-Reaction Theorem

d)

Study-Now Theorem

257.

"The mechanical energy of a system neither increases nor decreases in any process. It stays constant and is conserved." this is...

a)

Work-energy theorem

b)

Law of conservation of energy

c)

Newton's second law of motion

d)

King's theorem of energy

258.

What is the relationship between Power and Work?

a)

Power is the rate which Work is done

b)

Work is not related to Power

c)

Power is the result of work times the time it takes to complete it

259.

Brutus is a weightlifter. He completes a lift in 3.5 s, what is the power of Brutus, if he performed 660.0J of work?

a)

2310 J

b)

He performs no work

c)

189 J

260.

What is work (W) in the context of physics?

a)

The amount of effort put into a task

b)

The transfer of energy that occurs when a force makes an object move

c)

The distance an object travels

d)

The time taken to complete a task

261.

What unit is used to measure work in physics?

a)

Newton

b)

Pascal

c)

Joule

d)

Watt

262.

Which two conditions must be met for work to be done according to physics?

a)

Object must move and force must be applied in the direction of the movement

b)

Force must be applied and object must be heavy

c)

Object must move and work must be done in a short time

d)

Work must be done quickly and efficiently

263.

What does the equation W = Fd represent in physics?

a)

W = weight, F = friction, d = duration

b)

W = work, F = force, d = distance

c)

W = watt, F = frequency, d = diameter

d)

W = wave, F = field, d = depth

264.

What are the units for work, force, and distance respectively?

a)

Newtons, Joules, Meters

b)

Joules, Newtons, Kilometers

c)

Joules, Newtons, Meters

d)

Watts, Joules, Meters

265.

What does the symbol 'P' represent in the context of the given material?

a)

Pressure

b)

Probability

c)

Power

d)

Pulse

266.

What is the unit of power as mentioned in the learning material?

a)

Newton

b)

Joule

c)

Watt

d)

Pascal

267.

According to the formula provided, power is calculated as work done divided by what?

a)

Force

b)

Distance

c)

Time

d)

Velocity

268.

What is the unit of work as used in the formula for power?

a)

Newton-meter

b)

Joule

c)

Watt

d)

Kilogram

269.

What is the unit of time used in the formula for calculating power?

a)

Seconds

b)

Minutes

c)

Hours

d)

Milliseconds

270.

Match the following units

a)

W

1.

work

b)

F

2.

force

c)

d

3.

distance

d)

P

4.

power

e)

t

5.

time

271.

Match the following Units to their symbol

a)

Power (P)

1.

J/s or W

b)

Work (W)

2.

J

c)

Time (t)

3.

s

d)

Force (F)

4.

N

e)

Distance (d)

5.

m

272.
Which of the following is a true statement about work?
a)
It measures how quickly an object accelerates 
b)
It measures how much effort is applied over a certain distance
c)
It measures the change in an object's rate of speed
d)
It measures how much time it takes to move a massive object
273.

A __________ is a combination of two or more simple machines

a)

Simple Machine

b)

Compound Machine

c)

Efficient Machine

d)

Useful Machine