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WorksheetsEnergy Review
Total questions: 84
Worksheet time: 2hrs 45mins
Name
Class
Date
1.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
2.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
3.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
4.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
5.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
6.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
7.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
8.
Work is:
a)
A transfer of energy by a force to move and object
b)
Something you get paid for
c)
Something you take home
d)
Makes you sweat
9.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
10.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
11.
The formula for work is:
a)
d = r x t
b)
p = m x v
c)
f = m x a
d)
w = d x f
12.
Energy that is stored in bonds between atoms is:
a)
Mechanical energy
b)
Chemical energy
c)
Kinetic energy
d)
Nuclear energy
13.
Energy caused by the movement in the particles of matter. It is a form of kinetic energy.
a)
Nuclear energy
b)
Sound energy
c)
Light energy
d)
Thermal energy
14.
Energy that comes from the nucleus of an atom. A form of potential energy.
a)
chemical energy
b)
Nuclear energy
c)
Sound energy
d)
Electrical energy
15.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
16.
How much work is done on a 50 N rock that you lift 10 m straight up?
a)
500 J
b)
50 J
c)
10 J
d)
1 J
17.
A toy cart moves with kinetic energy of 40 J. What is its kinetic energy if the speed is doubled?
a)
100 J
b)
160 J
c)
400 J
d)
80 J
18.
A car that travels twice as fast as another when braking to a stop will skid:
a)
Twice as far
b)
Four times as far
c)
Depends on the mass of the cars
19.
An arrow in a bow has 70 J of potential energy. Assuming no energy is lost, how much kinetic energy will it have after it has been shot?
a)
140 J
b)
70 J
c)
50 J
d)
35 J
20.
True or false: the rate at which work is done is called power.
a)
True
b)
False
21.
True or false: the energy an object has by virtue of its motion is called its kinetic energy.
a)
True
b)
False
22.
An object that has kinetic energy must be:
a)
Moving
b)
Falling
c)
Elevated
d)
At rest
23.
If you lift one load up two stories, how much work do you do compared to lifting one load up only one story?
a)
Four times as much
b)
Twice as much
c)
The same amount
d)
One half as much
24.
How much power is expended if you lift a 50-N rock 10 meters in 1 second?
a)
500 W
b)
50 W
c)
10 W
d)
5 W
25.
If Skelly the Skater's speed is is increased so he has twice the momentum, then his kinetic energy is increased by:
a)
Two
b)
Four
c)
Eight
d)
Zero
26.
A 25kg race car driver drives a 250kg car down a drag strip with a speed of 100m/s. What is kinetic energy of the car and driver?
a)
1,250,000 J
b)
137,500 J
c)
1,375,000 J
d)
13,750,000 J
27.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
28.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
29.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
30.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Bothe the potential energy and kinetic energy increase
31.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
32.
At which point is kinetic energy greatest
a)
W
b)
X
c)
Y
d)
Z
33.
If both of these balls are traveling down a bowling lane at the SAME speed, which one would would have more kinetic energy?
Ball A = 500kg B = 100kg
Ball A = 500kg B = 100kg
a)
A
b)
B
34.
When a rubber band is stretched, it is demonstrating which type of potential energy?
a)
kinetic
b)
elastic potential
c)
gravitational potential
d)
mechanical
35.
When a 65 kg skydiver jumps from a plane, her speed steadily increases until air resistance provides a force that balances the force due to free fall. How fast is the skydiver falling if her kinetic energy at the moment is 704000J?
a)
21661.53 m/s
b)
147.17 m/s
c)
22880.0 km/s
d)
10830.76 m/s
36.
A cheetah can run briefly with a speed of 31m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?
a)
22583.5 J
b)
728.5 J
c)
1457 J
d)
0.75 J
37.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
38.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
39.
A change from one form of energy to another is called ___________.
a)
work
b)
power
c)
mechanical
d)
energy transformations
40.
According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?
a)
The total amount of energy is conserved
b)
The total amount of energy is less after a reaction
c)
The total amount of energy is more after a reaction
41.
When my velocity triples, my kinetic energy increases by ______ times.
a)
9
b)
3
c)
1.5
d)
4.5
42.
A 40 kg crate is picked up by a crane to a height of 50m. The crate falls. What is the velocity of the crate just before it hits the ground?
a)
2000 Joules
b)
19,600 Joules
c)
19,600 m/s
d)
31.3 m/s
43.
What is the unit of Potential Energy?
a)
m, mass
b)
kg, kilogram
c)
J, Joules
d)
m/s, meters/second
44.
What is the v in this equation? Choose the one with the CORRECT unit!
a)
volume (m3)
b)
velocity (m/s)
c)
velocity (m/s2)
d)
volume (v)
45.
What is the g? Choose the one with the correct unit!
a)
mass (kg)
b)
gravity (m/s)
c)
acceleration due to gravity (m/s2)
d)
grams (g)
46.
A 2 kg ball has an initial velocity of 6 m/s. How high up the ramp will it go?
a)
1.8 m
b)
10 m
c)
6 m
d)
12 m
47.
You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, what is the ball's velocity?
a)
6.32 m/s
b)
40 m/s
c)
4.47 m/s
d)
100 m/s
48.
You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, how much kinetic energy does it have?
a)
10 J
b)
100 J
c)
7 J
d)
20 J
49.
You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, what type of energy does it have?
a)
Potential Energy
b)
Kinetic Energy
c)
Nuclear Energy
d)
Chemical Energy
50.
A 5 kg ball is lifted 12 m above the ground. It's gravitational potential energy is
a)
60 J
b)
600 J
c)
17 J
d)
2.4 J
51.
A 70 kg runner has a velocity of 5 m/s. Her kinetic energy is
a)
875 J
b)
175 J
c)
1750 J
d)
350 J
52.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall
d)
d. a piece of coal before it's burned
53.
What kind of energy is in a battery?
a)
Potential
b)
Kinetic
54.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
55.
When a pendulum swings, at which point is kinetic energy highest:
a)
1
b)
2
c)
3
d)
4
56.
Work is:
a)
A transfer of energy by a force to move and object
b)
Something you get paid for
c)
Something you take home
d)
Makes you sweat
57.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
58.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
59.
The SI unit of heat and energy
a)
Joule
b)
Calorie
c)
Kelvin
d)
Celsius
60.
Potential energy that depends on height is called
a)
kinetic energy
b)
gravitational potential energy
c)
elastic potential energy
d)
mechanical energy
61.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
62.
Does a ball being tossed in the air have potential or kinetic energy?
a)
Potential
b)
Kinetic
63.
What is the unit for work and energy?
a)
N
b)
m
c)
J
d)
kgm/s
64.
How much work is done carrying a 10-N box horizontally across a floor for 8 m?
a)
80 J
b)
10 J
c)
8 J
d)
0 J
65.
The diagram below shows an ideal simple pendulum. As the pendulum swings from position A to position B, what happens to its potential energy? [Neglect friction.]
a)
it decreases
b)
it increases
c)
it remains the same
d)
it is zero
66.
The diagram below shows an ideal simple pendulum. As the pendulum swings from position A to position B, what happens to its kinetic energy? [Neglect friction.]
a)
it decreases
b)
it increases
c)
it remains the same
d)
it is zero
67.
A student throws a stone upward at an angle of 45 degrees. Which statement best describes the stone at the highest point that it reaches?
a)
Its kinetic energy is at a minimum
b)
Its potential energy is at a minimum
c)
Its acceleration is at a maximum
d)
Its elastic energy is at a maximum
68.
A car travels at constant speed v up a hill from point A to point B, as shown in the diagram below. As the car travels from A to B, its gravitational potential energy
a)
remains the same and its kinetic energy remains the same
b)
increases and its kinetic energy decreases
c)
increases and its kinetic energy remains the same
d)
remains the same and its kinetic energy decreases
69.
Two students of equal weight go from the first floor to the second floor. The first student uses an elevator and the second student walks up a flight of stairs. Compared to the gravitational potential energy gained by the first student, the gravitational potential energy gained by the second student is
a)
less
b)
greater
c)
the same
d)
cannot be determined
70.
If the velocity of an object is doubled, then its kinetic energy would be
a)
doubled
b)
four times as great
c)
half as great
d)
the same
71.
Which of the following have the same units?
a)
Work and Power
b)
Spring Constant and Elastic Energy
c)
Power and Potential Energy
d)
Potential Energy and Elastic Energy
72.
A job is done slowly, while an identical job is done quickly. Both jobs require the same amount of work, but different amounts of
a)
energy.
b)
power.
c)
effort.
d)
none of these.
73.
If you push an object twice as far while applying the same force, you do
a)
twice as much work.
b)
four times the amount of work.
c)
the same amount of work.
d)
half as much work.
74.
If you push for a half hour or a whole hour against a stationary wall,
a)
no work is done in either case.
b)
half as much work is done during the half hour.
c)
twice as much work is done during the half hour.
d)
it is impossible to determine how much work is done.
75.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
76.
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
77.
What is being transferred as you do work?
a)
Energy
b)
Heat
c)
Power
d)
Gravitational Potential Energy
78.
Energy that is stored is called...
a)
Kinetic
b)
Potential
79.
The energy of movement is...?
a)
Kinetic
b)
Potential
80.
What is the formula for Gravitational Potential Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
81.
What is the formula for Kinetic Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
82.
What is g on Earth?
a)
9.8 m/s/s
b)
9.8 m/s
c)
42 m*s
d)
42 m/s/s
83.
Kinetic energy can be calculated using the formula KE = 1/2mv2. What is the kinetic energy of a bicycle that has a mass of 20 kg and is traveling at a velocity of 10 m/sec?
a)
10 J
b)
100 J
c)
1000 J
d)
10,000 J
84.
How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?
a)
3.8 m
b)
3.7 m
c)
3.2 m
d)
3.6 m
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