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WorksheetsEnergy: Conservation and Transfer
Total questions: 138
Worksheet time: 3hrs 54mins
Name
Class
Date
1.
What is the unit of Potential Energy?
a)
m, mass
b)
kg, kilogram
c)
J, Joules
d)
m/s, meters/second
2.
If the Total Mechanical Energy is 50J, Potential Energy is 40 J, what is the Kinetic Energy?
a)
1 J
b)
10 J
c)
90 J
3.
What kind of energy does an object possess when it's resting on top of the hill?
a)
Potential Energy
b)
None
c)
Kinetic Energy
d)
All
4.
Which specific type of energy is at point A?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
5.
Which specific type of energy is at point B?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
6.
Which specific type of energy is at point D?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
7.
Which specific type of energy is at point C?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
8.
Which variable is always constant (doesn't change)?
a)
mass
b)
height
c)
velocity
d)
None
9.
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)
10.
What is the g? Choose the one with the correct unit!
a)
mass (kg)
b)
gravity (m/s)
c)
acceleration due to Earth's gravity (m/s2)
d)
grams (g)
11.
What is the g? Choose the one with the correct unit!
a)
mass (kg)
b)
gravity (m/s)
c)
gravity (m/s2)
d)
grams (g)
12.
At the bottom of the roller coaster, what kind of energy is NEVER present?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
13.
When the velocity of the car is given, what kind of energy can we calculate right away?
a)
Potential Energy
b)
Kinetic Energy
c)
Mechanical Energy
d)
None
14.
Which equation would you use to solve for point A?
a)
(1/2)mv2
b)
mgh
c)
(1/2)mv2+mgh
15.
What kind of energy are you taking in when eating food?
a)
thermal
b)
sound
c)
chemical
d)
electrical
16.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
17.
Which of the following is NOT a form of energy?
a)
movement
b)
body mass
c)
heat
d)
food
18.
A change from one form of energy to another is called ___________.
a)
work
b)
power
c)
mechanical
d)
energy transformations
19.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
20.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
The PE and KE increase and decrease together
b)
The PE decreases while the KE increases
c)
Impossible to know without knowing the mass
21.
Potential or kinetic?
Running?
Running?
a)
potential
b)
kinetic
22.
Potential or kinetic?
Stretched bow and arrow?
Stretched bow and arrow?
a)
kinetic
b)
potential
23.
Which energy transformation below matches?
Burning coal or carbon-based fuel at a powerplant?
Burning coal or carbon-based fuel at a powerplant?
a)
chemical to heat to electrical
b)
mechanical to chemical to sound
c)
electrical to chemical to heat
24.
Which energy transformation below matches?
Animals eating food?
Animals eating food?
a)
electrical to potential
b)
chemical to kinetic
c)
potential to chemical
25.
Which energy transformation below matches?
Green plants?
Green plants?
a)
chemical to mechanical
b)
chemical to heat
c)
solar to chemical
26.
Which energy transformation below matches?
A book falling?
A book falling?
a)
chemical to sound and heat
b)
kinetic to sound and heat
c)
electrical to sound and heat
27.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
28.
Define Nuclear energy?
a)
An icotope
b)
The stuff you see in a power plant.
c)
Energy stored in the nucleus of an atom
d)
Energy stored in an objects height
29.
One problem with ____ energy is that it produces radioactive waste.
a)
nuclear
b)
solar
c)
tidal
d)
wind
30.
Wind, geothermal, and solar energy are all what type of energy resources?
a)
cheap
b)
potential
c)
renewable
d)
chemical
31.
Fossil fuels are classified as nonrenewable because they.......
a)
require expensive equipment
b)
take millions of years to replace
c)
can be found all over
d)
provide all the energy we use
32.
What type of fossil fuel is mined from the ground?
a)
wind
b)
coal
c)
biomass
d)
air
33.
Energy from the sun is known as.........
a)
hydroelectric energy
b)
geothermal energy
c)
solar energy
d)
wind energy
34.
A _______ is produced when light bounces off of an object
a)
Reflection
b)
Diffraction
c)
Refraction
35.
When heat is transferred from electromagnetic waves through space?
a)
conduction
b)
insulation
c)
convection
d)
radiation
36.
A student placed a pot on the stove to boil water. The metal transferred heat to the water through which of the following?
a)
radiation
b)
convection
c)
insulation
d)
conduction
37.
Which of the following heat exchange processes involves the collision of particles?
a)
insulation
b)
conduction
c)
convection
d)
radiation
38.
What is an example of conduction?
a)
Getting a sun burn
b)
A boiling pot of water
c)
Touching a hot pot
d)
A hot air balloon
39.
When heat is transferred by direct touch?
a)
Convection
b)
Conduction
c)
Radiation
d)
Insulation
40.
Heat is the movement of ______.
a)
radiation
b)
thermal energy
c)
cold
d)
fire
41.
Thermal energy ALWAYS moves from _____ to _____.
a)
solid to liquid
b)
ice to water
c)
hot to cold
d)
solid to gas
42.
What scale do we use to measure temperature?
a)
thermometer
b)
Celsius
c)
Fahrenheit & Celsius
d)
Fahrenheit
43.
Heat from the sun travels to Earth by _____.
a)
conduction
b)
convection
c)
insulation
d)
radiation
44.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
45.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
46.
On a hot summer day, which shirt would you put on to make sure you stay cool while you are outside playing?
a)
A black shirt because it reflects the sun's energy.
b)
A white shirt because it reflects the sun's energy.
c)
A black shirt because it absorbs the sun's energy.
d)
A white shirt because it absorbs the sun's energy.
47.
When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?
a)
From the cold cup to your hand
b)
From the cold cup to the warm air
c)
From the ice to your hand
d)
From your warm hand to the cold cup.
48.
This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:
a)
Conduction.
b)
Convection.
c)
Radiation.
49.
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
d)
Insolation
50.
Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
51.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high.
52.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
53.
What happens to the movement of particles as they cool down?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
54.
According to the law of _________________, energy cannot be created nor destroyed.
a)
Conservation of Energy
b)
Inertia
c)
Acceleration
d)
Conservation of matter
55.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
56.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
57.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast
58.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
59.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal
d)
transverse wave
60.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
61.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
62.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
63.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air.
d)
glass.
64.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
65.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
66.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
67.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
68.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
69.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
70.
Electromagnetic waves include the following except
a)
radio waves
b)
X-rays
c)
doing the wave at a football game
d)
microwaves
71.
regular disturbances that carry energy through matter or space
a)
crest
b)
energy
c)
wave
d)
trough
72.
which material does sound travel the fastest?
a)
solid
b)
liquid
c)
gases
73.
When a wave strikes and object and bounces off. (example echo)
a)
medium
b)
refraction
c)
reflection
d)
interference
74.
When a wave bends as it passes through at an angle from one medium to another.(example: pencil in a glass of water-)
a)
medium
b)
refraction
c)
reflection
d)
interference
75.
Which of the following is transmitted by waves?
a)
atoms
b)
matter
c)
energy
d)
resonance
76.
How would a person measure the wavelength on this sound wave?
a)
dense to less dense
b)
trough to crest
c)
compression to compression
d)
beginning of illustration to the end
77.
What is another name for wave height?
a)
Frequency
b)
Amplitude
c)
Wavelength
d)
Origin
78.
Which wave has a greater frequency?
a)
A
b)
B
79.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
80.
Which letter represents the wave trough?
a)
A
b)
B
c)
C
d)
D
81.
Which letter represents the wave crest?
a)
A
b)
B
c)
C
d)
D
82.
All waves carry
a)
energy
b)
light
c)
matter
d)
particles
83.
This type of Electromagnetic wave shows a break in bones.
a)
gamma ray
b)
x-ray
c)
brokenometer
d)
radio wave
84.
What do we call the part of a compressional wave that is spread a part?
a)
compression
b)
rarefaction
c)
crest
d)
trough
85.
What do we call the part of a compressional wave that is when the waves are squeezed together?
a)
compression
b)
rarefaction
c)
crest
d)
trough
86.
What kind of wave moves at right angles to the direction of the wave?
a)
compressional waves
b)
mechanical waves
c)
transverse waves
d)
ultraviolet rays
87.
_______ carry the greatest amount of energy.
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
88.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)
Radio
89.
The units for frequency are measured in _____________.
a)
hertz
b)
seconds
c)
m/s
d)
m
90.
In a longitudinal wave, the particles move...?
a)
back and forth
b)
up and down
c)
vertically
d)
in the direction of the hertz
91.
In a transverse wave, particles move...?
a)
back and forth
b)
vertically
c)
up and down
d)
wherever the matter's going
92.
As light travels through a lens in causes an object to appear larger, this is due to which behavior?
a)
Transmission
b)
Reflection
c)
Absorption
d)
Refraction
93.
Which object would be the best at reflecting light waves?
a)
windows
b)
mirrors
c)
notebooks
d)
tables
94.
Which of the figures represents reflection?
a)
A
b)
B
c)
C
d)
D
95.
Which of the following represents refraction?
a)
A
b)
B
c)
C
d)
D
96.
Prisms separate light into the colors of the rainbow using what behavior of waves?
a)
Reflection
b)
Refraction
c)
Absorption
d)
Transmission
97.
When a wave bends as it passes through at an angle from one medium to another.
a)
medium
b)
refraction
c)
reflection
d)
interference
98.
When a wave bends as it passes through at an angle from one medium to another.
a)
medium
b)
refraction
c)
reflection
d)
interference
99.
When a wave strikes an object and bounces off
a)
medium
b)
refraction
c)
reflection
d)
interference
100.
When a sound wave experiences reflection, we hear
a)
a louder sound
b)
an echo
c)
a quieter sound
d)
nothing
101.
Hey! That straw looks broken. Why?
a)
reflection
b)
refraction
c)
transmission
d)
absorption
102.
What is causing you to be able to see two sets of mountains in this picture?
a)
refraction of light
b)
reflection of light
c)
transmission of light
d)
absorption of light
103.
When two waves combine to form a new wave with a smaller amplitude, it is called
a)
Refraction
b)
Constructive Interference
c)
Resonance
d)
Destructive Interference
104.
When two waves combine to form a new wave with a larger amplitude, it is called
a)
Diffraction
b)
Destructive Interference
c)
Resonance
d)
Constructive Interference
105.
If two overlapping waves are in-phase, the resultant wave will have ______ compared to the two waves.
a)
Greater amplitude
b)
Greater frequency
c)
Greater wavelength
d)
Greater wave speed
106.
Electromagnetic waves ________ a medium.
a)
require
b)
don't require
107.
Destructive interference is
a)
When the two waves affect each other in a negative way
b)
The two waves add together and produce a single wave of greater amplitude
c)
Are in phase
108.
Constructive interference is
a)
When two waves affect one another in a positive way.
b)
Produce a single wave of greater amplitude (add together)
c)
Both
109.
constructive interference occurs when two or more waves combine to produce a smaller wave
a)
true
b)
false
110.
what is interference
a)
occurs when two or more waves overlap and combine
b)
occurs when two or more waves combine and neutralize each other
c)
when one waves travels alone
111.
Diffraction is the______ of a wave as it moves around an obstacle or passes through a narrow opening
a)
growth
b)
shrinking
c)
bending
112.
What determines the amplitude of a wave?
a)
Amount of energy
b)
Speed of wave
c)
Wavelength
d)
Frequency
113.
When a wave moves around a barrier or though an opening it is known as what?
a)
Diffraction
b)
Refraction
c)
Rarefaction
d)
Destruction
114.
___________________ is known as when crests of one wave overlap with the troughs of another wave
a)
Refraction
b)
Reflection
c)
Constructive Interference
d)
Destructive Interference
115.
a)
Diffraction
b)
Interference
116.
The bending of a wave as it changes speed is called
a)
Reflection
b)
Diffraction
c)
Refraction
d)
Interference
117.
a)
Constructive Interference
b)
Destructive Interference
118.
Diffraction is the bending of a wave as it mores around an obstacle or passes through a narrow opening.
a)
True
b)
False
119.
When two waves combine to form a new wave with a larger amplitude, it is called
a)
Diffraction
b)
Destructive Interference
c)
Resonance
d)
Constructive Interference
120.
Which wave behavior do noise cancelling headphones use?
a)
diffraction
b)
refraction
c)
constructive interference
d)
destructive interference
121.
______________ occurs when two or more waves combine to produce a wave with a smaller amplitude/energy.
a)
Destructive interference
b)
Constructive Interference
c)
Diffraction
d)
Refraction
122.
What phenomenon does this image demonstrate?
a)
Constructive interference
b)
Destructive interference
c)
Increasing frequency
d)
Increasing period
123.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
124.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
125.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
126.
A _______ pulley is used to reduce the amount of effort force.
a)
movable
b)
fixed
c)
single
127.
A sloping force, like a ramp, that reduces the mount of force required to lift an object.
a)
screw
b)
wheel and axle
c)
inclined plane
128.
Why is no machine 100% efficient?
a)
some of the input energy is converted to mechanical energy in the environment
b)
some of the input energy is converted to chemical energy in the environment
c)
some of the input energy is converted to heat energy in the environment
d)
All machines can be 100% efficient
129.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
130.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
131.
What force opposes motion motion and decreases the efficiency of a machine?
a)
gravity
b)
friction
c)
pressure
132.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
133.
A lever is designed to:
a)
reduce the amount of force required to do work
b)
increase the amount of effort required
c)
increase the amount of energy needed to work
134.
A simple machine that is made up of an incline plane wrapped around a cylinder. It is often used to hold things together.
a)
lever
b)
screw
c)
wedge
135.
A simple machine is a device that helps to reduce the amount of _____ required to work.
a)
force
b)
energy
c)
work
136.
____ is done when a force is applied over a distance.
a)
energy
b)
work
c)
force
137.
What could I do to this machine to increase the efficiency?
a)
oil or grease it
b)
make it sharper
c)
make the ramp shorter
138.
If I lift a 500N object 2m off the ground, am I doing work?
a)
Yes
b)
No
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