Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which of the following types of energy comes from a compound that changes as its
atoms are rearranged?
a. | kinetic energy | c. | thermal energy | b. | chemical energy | d. | light energy |
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2.
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What is a change from one form of energy to another called?
a. | energy change | c. | energy conversion | b. | conversion of power | d. | energy transfer |
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3.
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When you wind a rubber band on a toy airplane, which of the following types of
energy does the rubber band have?
a. | kinetic energy | c. | thermal energy | b. | elastic potential energy | d. | mechanical
energy |
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4.
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In photosynthesis, which of the following types of energy is used to make new
substances?
a. | sound energy | c. | thermal energy | b. | light energy | d. | nuclear energy |
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5.
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Your body uses the chemical energy in food to make which of the following types
of energy?
a. | kinetic energy | c. | potential energy | b. | light energy | d. | sound energy |
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6.
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A hair dryer changes electrical energy into which of the following types of
energy?
a. | light energy | c. | thermal energy | b. | nuclear energy | d. | chemical energy |
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7.
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When there is friction on a roller coaster, some of the potential energy is NOT
converted into
a. | kinetic energy. | c. | light energy. | b. | nuclear energy. | d. | chemical
energy. |
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8.
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Which of the following is the formula for finding kinetic energy?
a. | KE = m/v | c. | KE =
mv2/2 | b. | KE = mv/2 | d. | KE =
v/2 |
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9.
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When you eat fruits and vegetables, which of the following types of energy are
you taking in?
a. | thermal energy | c. | electrical energy | b. | sound energy | d. | chemical energy |
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10.
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What is the energy of motion called?
a. | potential energy | c. | kinetic energy | b. | mechanical energy | d. | force energy |
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Completion
Complete each
statement.
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Use the terms from the following list to complete the sentences
below
| energy | kinetic
energy | | potential energy | mechanical energy | | energy
conversion | friction | | fossil fuels | renewable | | |
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11.
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After a bow is stretched, it has ____________________.
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Use the terms from the following list to complete the sentences
below.
| fusion | light
energy | | electrical energy | energy | | |
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12.
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A nuclear reaction called ____________________ produces the sun’s light
and heat.
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Use the terms from the following list to complete the sentences
below.
potential energy
gravitational potential energy
fission
| potential
energy | gravitational potential energy | | fission | | | |
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13.
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The electrical energy at nuclear power plants is made by
____________________.
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14.
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The energy an object has because of its position is called
____________________.
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15.
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The energy equal to how much work is needed to lift an object to a certain
height is called ____________________.
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Short Answer
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Use the image below to answer the following questions.
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16.
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At which point(s) does the pendulum have the most potential energy?
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17.
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At which point(s) does the pendulum have the most kinetic energy?
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 Figure
4-1
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18.
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Which ball in Figure 4-1 has the greatest potential energy?
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19.
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Which ball in Figure 4-1 has the least potential energy?
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Matching
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Match each item with the correct statement below. a. | kinetic energy | d. | mechanical energy | b. | energy | e. | potential energy | c. | gravitational
potential energy |
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20.
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the ability to do work
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21.
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the energy an object has because of its position
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22.
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the energy you give to an object when you use a force that goes against the
force of gravity
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23.
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the energy of motion
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24.
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the total energy of motion and position of an object
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True/False
Indicate whether the
statement is true or false.
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25.
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Energy doesn't have to involve motion.
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26.
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Energy is the ability to cause change.
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27.
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Energy is measured in joules.
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28.
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When you ride a playground swing, your potential energy is greatest at the
highest point.
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29.
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Chemical energy travels from the Sun to Earth and is transformed into light
energy by plants.
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30.
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As mass decreases, kinetic energy increases.
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31.
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Lowering an object decreases its potential energy.
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32.
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In a car engine, burning fuel produces heat, which causes gases to expand,
producing kinetic energy.
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33.
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The sum of potential and kinetic energy in a system is called the total
energy.
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34.
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As an object falls its potential energy is lost to the air around it.
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35.
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Carbohydrates and fats provide our bodies with energy in the form of
calories.
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36.
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Energy from the Sun and energy from food are just different forms of the same
thing.
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Problem
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37.
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An 18-kg bicycle carrying a 62-kg girl is traveling at a speed of 7 m/s. What is
the kinetic energy of the girl and bicycle?
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38.
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A 20-kg bicycle carrying a 50-kg girl is traveling at a speed of 8 m/s. What is
the kinetic energy of the girl and bicycle?
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