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Energy and Work
Energy and Work
As in "I don't feel like I have the energy to work on science today".
As in "I don't feel like I have the energy to work on science today".
No, not really. The words energy and work have specific meanings in physics that we'll study on this page.
No, not really. The words energy and work have specific meanings in physics that we'll study on this page.
Choose the best and answer from the list provide for each statement or question.
Choose the best and answer from the list provide for each statement or question.
1. Select the word that is NOT a type of energy covered in the text.
A. Kinetic
B. Solar
C. Stationary
D. Food
2. How does the author contrast solar energy with fossil fuels?
A. Solar energy is Chinese and fossil fuels are Greek.
B. Solar energy is clean and renewable while fossil fuels cause pollution.
C. Fossil fuels are classified as kinetic energy and solar energy is classified as potential energy.
D. Fossil fuels are older than solar energy.
3. The sun loses energy by transferring light to the earth. On earth, we are able to use the light for solar power among other things. What conclusion can you draw from the above statement?
A. Light is the only way to transfer energy.
B. The heat from the sun is a result of the light energy.
C. Energy lost by one object can be captured or used by another.
D. The sun uses kinetic energy.
4. If somebody leads a very active lifestyle, what will they require?
A. less energy from food
B. more heat energy
C. solar power
D. more energy from food
5. What is the passage mostly about?
A. several different types of energy, what they do, and how they work
B. how humans use energy from the sun
C. the difference between kinetic energy and potential energy
D. how to measure energy
6. Read the following sentence: “The meaning of the word energy changes when you get into the physical sciences.” What did the author want to communicate to the reader by using this sentence?
A. that she was going to continue her explanation of solar energy
B. that she was going to remind the reader that energy is a scientific topic
C. that she was about to transition the focus of her article to the physical sciences
D. that she was going to introduce the definition of potential energy
7. Choose the answer that best completes the sentence below. Radiation transfers heat through electromagnetic waves; __________, convection transfers heat through liquid.
A. however
B. so
C. for instance
D. as a result
8. What is the major source of energy for humans on Earth?
9. When an object starts moving on its own, potential energy becomes kinetic energy. Use evidence from the text to support this statement.
10. Use evidence from the passage to explain what solar energy can be used for and how solar energy is different from other forms of energy
Answers
Answers
1. C
1. C
2. B
2. B
3. C
3. C
4. D
4. D
5. A
5. A
6. C
6. C
7. A
7. A
8-10 = email me your answers!
8-10 = email me your answers!
Answers
Answers
Page 1 Classifying Potential or Kinetic Energy
Potential Energy
Standing at the top of a slide / wind up for a pitch / a battery / juice in an orange / unburned lump of coal / frog on lily pad / book on shelf / parked car
Kinetic Energy
move down a slide / throw a curveball / swan dive / roller coaster / frog leaping into water / book falls from shelf / roll down hill / speeding car
Page 2
1. potential energy
2. Potential energy
3. Potential energy
4. kinetic energy
5. kinetic energy
6. kinetic energy
7. Potential energy
8. kinetic energy
9. kinetic energy
10. Potential energy
11. kinetic energy
12. Potential energy
Page 3: Energy of One Kind or Another
1. electrical energy (electrical power to begin the roller coaster)
2. mechanical energy (chain is moving car)
3. most potential energy (at the top of hill)
4. potential energy changing to kinetic energy (moving)
5. most kinetic energy (at bottom)
6. thermal energy (creating friction)
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