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Transcript
Name ______________________________ Class ___________________ Date __________________
Chapter 5 Review – Energy Resources
USING KEY TERMS
For each pair of terms, explain how the meanings of the terms differ.
1. potential energy and kinetic energy
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2. mechanical energy and energy conversion
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3. renewable resources and nonrenewable resources
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UNDERSTANDING KEY IDEAS
Multiple Choice
_____ 4. Kinetic energy depends on
a. mass and volume.
b. velocity and weight.
c. weight and height.
d. velocity and mass.
_____ 5. Gravitational potential energy depends on
a. mass and velocity.
c. mass and weight.
b. weight and height.
d. height and distance.
_____ 6. Which of the following types of energy is not a renewable resource?
a. wind energy
c. solar energy
b. nuclear energy
d. geothermal energy
_____ 7. Which of the following sentences describes a conversion from
chemical energy to thermal energy?
a. Food is digested and used to regulate body temperature.
b. Charcoal is burned in a barbecue pit.
c. Coal is burned to produce steam.
d. All of the above
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
41
Energy and Energy Resources
Name ______________________________ Class ___________________ Date __________________
Short Answer
8. Name two forms of energy, and relate them to kinetic or potential energy.
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9. Give 3 examples of one form of energy being converted into another form of energy.
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10. How are fossil fuels formed?
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Math Skills
11. A box has 400 J of gravitational potential energy.
a. How much work had to be done to give the box that energy? Show your
work below.
b. If the box weighs 100 N, how far above the ground is it? Show your work
below.
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
42
Energy and Energy Resources
Name ______________________________ Class ___________________ Date __________________
Chapter Review continued
12. Applying Concepts Describe what happens in terms of energy when you blow
up a balloon and release it.
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13. Predicting Consequences Imagine that the sun ran out of energy. What would
happen to our energy resources on Earth?
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14. Analyzing Processes Look at the image below. Beginning with the pole
vaulter's breakfast, trace the energy conversions necessary for the event shown
to take place.
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15. Forming Hypotheses Imagine two cars, one of which is more efficient than the
other. Suggest two possible reasons one car is more efficient.
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
43
Energy and Energy Resources
Name ______________________________ Class ___________________ Date __________________
INTERPRETING GRAPHICS
Use the graphic below to answer the questions that follow.
16. What is the skier’s gravitational energy at point a?
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17 . What is the skier’s gravitational potential energy at point b?
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_______________________________________________________________
18. What is the skier’s kinetic energy at point B?
(Hint: mechanical energy = potential energy + kinetic energy)
_______________________________________________________________
_______________________________________________________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
44
Energy and Energy Resources