Chapter 5
ENERGY
What is the ability to do work?
ec
ha
M
rg
y
En
e
ne
rg
y
ni
ca
le
le
tia
Po
te
n
et
ic
e
ne
r
ne
rg
y
gy
Kinetic energy
Potential energy
Mechanical energy
Energy
Ki
n
1.
2.
3.
4.
25% 25% 25% 25%
What is the total energy of motion and
position of an object?
Gr
av
i
ta
t
rg
y
lE
ric
a
ct
Ele
et
ic
Ki
n
ne
En
er
rg
y
lE
ni
ca
ec
ha
M
io
na
lP
ot
en
tia
ne
l.
..
1. Gravitational
Potential Energy
2. Mechanical Energy
3. Kinetic Energy
4. Electrical Energy
gy
25% 25% 25% 25%
What is the energy of an object has
because of its position called?
rg
y
lE
ni
ca
ec
ha
M
ot
en
lP
io
na
ta
t
Gr
av
i
ne
l.
..
tia
ne
r
lE
tia
Po
te
n
Ki
n
et
ic
En
er
gy
1. Kinetic Energy
2. Potential Energy
3. Gravitational
Potential Energy
4. Mechanical Energy
gy
25% 25% 25% 25%
What is the energy of motion called?
1. Gravitational
Potential Energy
2. Potential Energy
3. Kinetic Energy
4. Mechanical Energy
Gr
av
i
ta
t
rg
y
gy
M
ec
ha
ni
ca
lE
ne
En
er
et
ic
Ki
n
lE
tia
Po
te
n
io
na
lP
ot
en
tia
ne
r
l.
..
gy
25% 25% 25% 25%
What is the energy you give to an
object when you use a force that goes
against the force of gravity called?
25% 25% 25% 25%
tia
ne
r
ot
en
lE
tia
io
na
lP
Po
te
n
et
ic
Ki
n
l.
..
gy
En
er
rg
y
ne
lE
ni
ca
ec
ha
gy
Mechanical Energy
Kinetic Energy
Potential Energy
Gravitational
Potential Energy
Gr
av
i
ta
t
M
1.
2.
3.
4.
Which of the following types of energy
comes from a compound that changes
as its atoms are rearranged?
25% 25% 25% 25%
ne
rg
y
gy
Lig
ht
e
er
en
m
al
Th
er
le
ica
Ch
em
ct
ric
a
le
ne
r
ne
rg
gy
y
Electrical energy
Chemical energy
Thermal energy
Light energy
Ele
1.
2.
3.
4.
Which of the following is due to the
random motion of particles?
25%
er
gy
So
un
d
en
al
m
Th
er
en
er
gy
Nu
cle
ar
en
er
ne
rg
ht
e
25%
gy
25%
y
Light energy
Nuclear energy
Thermal energy
Sound energy
Lig
1.
2.
3.
4.
25%
Which energy is caused by
an object’s vibrations?
So
un
d
en
e
rg
y
y
ne
rg
le
ica
Ch
em
le
ric
a
ct
Ele
m
al
en
ne
r
er
gy
gy
Thermal energy
Electrical energy
Chemical energy
Sound energy
Th
er
1.
2.
3.
4.
25% 25% 25% 25%
Which of the following is the
energy that comes from changes
in an atom’s nucleus?
25% 25%
gy
ne
r
gy
le
m
ica
Ch
e
Nu
cle
ar
en
er
gy
ht
en
er
Lig
m
al
en
er
gy
Thermal energy
Light energy
Nuclear energy
Chemical energy
Th
er
1.
2.
3.
4.
25% 25%
What is a change from one form of
energy to another called?
h
itc
sw
En
er
gy
co
nv
e
rg
y
En
e
Co
nv
e
rs
io
n
rg
y
of
p
ch
a
ow
rs
io
n
er
ng
e
Energy change
Conversion of power
Energy conversion
Energy switch
En
e
1.
2.
3.
4.
25% 25% 25% 25%
When you wind a rubber band
on a toy airplane, which of the
following types of energy
does the rubber band have?
25% 25% 25% 25%
gy
gy
ne
r
er
ni
ca
le
en
m
al
Th
er
M
ec
ha
st
ic
po
Ki
n
te
n
tia
et
ic
le
ne
r
en
er
gy
gy
1. Kinetic energy
2. Elastic potential
energy
3. Thermal energy
4. Mechanical energy
In photosynthesis, which of the
following types of energy is used to
make new substances?
25%
25%
25%
ar
Nu
cle
Th
er
m
al
en
en
er
er
gy
y
Lig
ht
e
ne
rg
er
gy
en
gy
Sound energy
Light energy
Thermal energy
Nuclear energy
So
un
d
1.
2.
3.
4.
25%
A hair dryer changes electrical energy
into which of the following
types of energy?
25% 25%
gy
le
m
ica
Ch
e
Th
er
m
al
en
ne
r
er
gy
Nu
cle
ar
en
er
gy
ht
en
er
gy
Light energy
Nuclear energy
Thermal energy
Chemical energy
Lig
1.
2.
3.
4.
25% 25%
Which of the following is used to
measure energy from the sun?
En
e
et
er
m
di
o
Ra
rg
y
ca
l
cu
la
to
r
m
et
er
En
er
gy
m
om
et
er
Thermometer
Energy meter
Energy calculator
Radiometer
Th
er
1.
2.
3.
4.
25% 25% 25% 25%
As a skateboarder speed down
through the bottom of a half-pipe,
which energy is at its maximum?
25% 25% 25% 25%
le
ne
r
gy
le
ne
rg
y
tia
tia
Ela
st
ic
po
te
n
Po
te
n
et
ic
Ki
n
ec
ha
ni
ca
le
ne
r
en
er
gy
gy
Mechanical energy
Kinetic energy
Potential energy
Elastic potential
energy
M
1.
2.
3.
4.
What type of energy comes from the
food you eat?
Nu
cle
ar
en
er
gy
gy
25% 25%
ht
en
er
Lig
en
m
al
Th
er
m
ica
le
ne
r
er
gy
gy
Chemical energy
Thermal energy
Light energy
Nuclear energy
Ch
e
1.
2.
3.
4.
25% 25%
What type of energy from food is used
to maintain body temperature?
25% 25%
gy
Nu
cle
ar
en
er
gy
ht
en
er
Lig
en
m
al
Th
er
m
ica
le
ne
r
er
gy
gy
Chemical energy
Thermal energy
Light energy
Nuclear energy
Ch
e
1.
2.
3.
4.
25% 25%
When you eat food, you are taking in
energy from the
M
25%
Ai
r
25%
oo
n
25%
Su
n
th
Earth
Sun
Moon
Air
Ea
r
1.
2.
3.
4.
25%
Work is made easier when a(n)
______ changes the direction or size of
the force needed to do work.
ne
M
ac
hi
1. Machine
100%
What is a force that opposes motion
between 2 surfaces that
are touching called?
..
io
n
co
ns
er
va
t
Fr
ict
io
n
c lo
se
d
Th
e
la
w
of
A
rg
y
ef
fic
i
en
sy
st
e
cy
Energy efficiency
A closed system
Friction
The law of
conservation of
energy
En
e
1.
2.
3.
4.
m
25% 25% 25% 25%
What is the rule that states that
energy cannot be created or
destroyed?
..
io
n
co
ns
er
va
t
Fr
ict
io
n
m
c lo
se
d
Th
e
la
w
of
A
er
gy
ef
fic
i
en
sy
st
e
cy
Energy efficiency
A closed system
Friction
The law of
conservation of
energy
En
1.
2.
3.
4.
25% 25% 25% 25%
What is a group of objects
that transfer energy only
to each other called?
25% 25% 25% 25%
Ae
r
e
sh
ap
od
yn
am
ic
Fr
ict
io
n
sy
st
e
c lo
se
d
A
rg
y
ef
fic
i
en
c
y
m
Energy efficiency
A closed system
Friction
Aerodynamic shape
En
e
1.
2.
3.
4.
What is a feature of a car that helps it
be more energy efficient?
La
w
.. .
of
n
tio
va
on
se
r
of
c
dy
na
m
ic
sh
ap
e
Fr
ict
io
n
Ae
ro
se
d
sy
st
em
Closed system
Friction
Aerodynamic shape
Law of conservation
of energy
Cl
o
1.
2.
3.
4.
25% 25% 25% 25%
What is a comparison of the amount of
energy before and after conversion?
La
w
of
C
Fr
ict
io
n
cy
en
Ef
fic
i
En
er
gy
se
d
Cl
o
A
on
se
r
va
t
io
n
of
...
1. Law of Conservation
of Energy
2. A Closed System
3. Energy Efficiency
4. Friction
Sy
st
em
25% 25% 25% 25%
When there is friction on a roller
coaster, some of the potential energy
is NOT converted into kinetic energy.
It is also converted into
25% 25% 25% 25%
.
rg
y
ne
ica
le
en
er
gy
.
lig
ht
gy
.
en
er
ar
le
al
e
ne
rg
y.
thermal energy.
nuclear energy.
light energy.
chemical energy.
m
1.
2.
3.
4.
Which of the following types of energy
makes a light bulb feel warm?
gy
gy
en
er
er
ar
Nu
cle
Th
er
m
al
en
ne
r
le
ric
a
ct
Ele
ht
e
ne
rg
gy
y
Light energy
Electrical energy
Thermal energy
Nuclear energy
Lig
1.
2.
3.
4.
25% 25% 25% 25%
Whenever one form of energy is
converted into another form of energy,
some of the original energy is always
converted into which of the following?
1.
2.
3.
4.
Light energy
Thermal energy
Kinetic energy
Sound energy
25%
25%
25%
25%
What is the unit of measurement to
express energy transfer?
• What is the formula that is used to determine
kinetic energy?
• Know how to solve for KE:
What is the kinetic energy of a truck that has a
mass of 4,000 kg and is moving at 2 m/s?
• What is the formula that is used to determine
gravitational potential energy?
• Know how to solve for GPE:
What is the gravitational potential energy of a
book with a weight of 8 N at a height of 2 m
off the ground?
• Know where PE and KE are at
their maximum in when a
pendulum is in motion.
• Where the kinetic energy is
increasing/potential
decreasing.
• Where the kinetic energy is
decreasing/potential is
increasing.