Download Unit 3.1 Test Review Energy Types

Name: ___________________
Period: _____
Date: ________
Unit 3.1 Test Review
Energy Types
1. Energy is the ability to do
work
2. Potential energy is defined as
or to cause
change
.
energy stored in an object due to its position or chemical energy
.
An example of potential energy is standing upon a diving board
.
3. Kinetic energy is defined as energy an object has due to its motion
.
An example of kinetic energy is
jumping off the diving board and splashing into the pool
.
4. At which point does the rollercoaster car have the greatest potential energy? ____W___
5. At which point does the rollercoaster car have the greatest kinetic energy? ____X_________
6. What happens to potential energy as the car rolls down the slope? THE POTENTIAL ENERGY DECREASES
7. What happens to kinetic energy as the car rolls down the slope? ___THE KINETIC ENERGY INCREASES__
Examine the ladder picture.
9. Which worker has the greatest potential energy? __A___
Explain how you know this: ________WORKER A HAS GREATER POTENTIAL
ENERGY BECAUSE HE IS FARTHEST FROM THE GROUND.
10. Which worker has the least potential energy? __B_
Explain how you know this: ________WORKER B HAS THE LEAST POTENTIAL
ENERGY BECAUSE HE IS STANDING ON THE GROUND
8. As potential energy _Increases__ , kinetic energy ___decreases___. This is because no energy is lost in
a system but changes _____form___ from one type to another.
Name: ___________________
Period: _____
Date: ________
Phrase Bank
PE is increasing & KE increasing &
11. In the pendulum illustration below, label A-E with the correct
KE decreasing
PE decreasing
phrase provided
Maximum PE &
Maximum KE &
Minimum KE
Minimum PE
A, E: Max PE and min KE
B: KE increases, PE decreases
C: Max KE, Min PE
D: KE decreases, PE increases
Energy Forms
1. Chemical energy is energy stored in matter because of its chemical makeup. It is released during a
chemical

reaction
or change.
Examples of chemical energy include; batteries, food , burning wood, or fuel.
2. Electrical energy is energy in the form of electricity or

travels in
waves
light
energy, is the energy in electromagnetic energy that
.
Examples of radiant energy include; sunlight, visible light, x-rays, gamma rays and radio waves.
4. Mechanical energy is energy that an object has because of its

5.
movement
or position.
Examples of mechanical energy include; a car moving, riding a bicycle , or running.
Thermal

matter.
Examples of electrical energy include lightning or running a hairdryer.
3. Radiant energy, sometimes called

charged
energy is energy that is related to heat and the temperature of matter.
Examples of thermal energy include; heating soup from a stovetop, a clothes dryer drying
clothes, or furnace heating a house.
6. Nuclear energy is energy released when the nuclei of atoms are
split
or combine (called nuclear
fission).

An example of where nuclear power is made is in a nuclear power plant.
B
C
Name: ___________________
Period: _____
Date: ________
Energy Transformation
1. Energy transformation is the process of energy
changing
from one
2. The Law of Conservation of Energy states that energy cannot be
Energy can only change its
form
from one
type
form
created
to another.
nor
destroyed .
to another. The energy of the world is a
constant because the total amount of the energy does not change.
Fill in the table with the appropriate energy forms.
3
Radiant
energy from the sun is converted into
through the process of photosynthesis in plants.
chemical
energy
4
A television changes
electrical
energy into sound and
radiant energy.
5
A toaster changes
energy.
electrical
energy into
thermal
energy and radiant
6
A car changes
thermal
7
A flashlight changes
energy.
8
When you speak into your telephone, sound energy from your voice is
changed into electrical energy. The electrical energy is then converted
back into sound
energy on another phone, allowing someone to hear
you.
chemical
energy.
energy from fuel to
chemical
mechanical
energy from batteries into
energy and
radiant
9
Radiant
panels.
energy is converted into
electrical
energy using solar
10
Campfires convert chemical energy stored in wood into both radiant
energy and thermal energy, which is useful for cooking and staying
warm.
11
Nuclear energy generates a tremendous amount of thermal
which can be converted into electrical
energy.
energy,
Name: ___________________
Period: _____
Date: ________
12. Label the forms of energy found in the energy transformation of an electrical power plant.
electrical
thermal
mechanical
chemical