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ENERGY

ENERGY. Energy is the ability to cause change. ANSWERS. Energy is the ability to cause change. ANSWERS. Energy is the ability to cause change. ANSWERS.

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ENERGY

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  1. ENERGY

  2. Energy is the ability to cause change

  3. ANSWERS

  4. Energy is the ability to cause change

  5. ANSWERS

  6. Energy is the ability to cause change

  7. ANSWERS

  8. Windmill farms are becoming a popular method of generating electricity for some communities. What form of energy in wind is used to turn the giant blades of the windmill? • Chemical • Mechanical • Electrical • Thermal 20 POINTS

  9. The correct answer is B, Mechanical Energy. Wind, which turns the windmill blades, is the movement of air particles.

  10. In a nuclear reactor, the energy used to turn water into steam is in what form? A. Chemical B. Nuclear C. Electrical D. Thermal 20 POINTS

  11. The correct answer is “D”, thermal energy. The nucleus of the uranium atom contains nuclear energy, but this is converted into thermal energy when the nucleus is split. The thermal energy is then used to heat the water to the boiling point.

  12. Nutrients entering muscle cells in the body are converted into heat. What form of energy is stored in the nutrients? A. Chemical B. Nuclear C. Electrical D. Thermal 20 POINTS

  13. The correct answer is “A”, chemical energy. Chemical energy is stored in the chemical bonds of the food molecules.

  14. QUESTION The boulder would have the greatest kinetic energy at which of the positions on the waterfall? A position 1 B position 2 C position 3 D position 4 1 A 4 2 3 B 20 POINTS

  15. B position 2

  16. A yo-yo can demonstrate both Potential and Kinetic energy. When does a yo-yo have it greatest potential energy? A In the hand before the yo-yo is releasedB At the bottom of the stringC When the yo-yo is fallingD When the yo-yo is climbing the string 20 POINTS

  17. A In the hand before the yo-yo is released.

  18. Which will have the most kinetic energy rolling down the hill? A TruckB BallC RunnerD All of the are examples of Potential energy. 20 POINTS

  19. Answer: A

  20. Which of the following can be used to transform chemical energy into heat energy? A. melting a candle B. lighting a match C. solar panels D. a light bulb 20 POINTS

  21. Answer: B

  22. Which of these types of energy conversions occurs in a battery-powered flashlight? A. Thermal to mechanical B. Light to electrical C.Thermal to chemical D. Chemical to electrical 20 POINTS

  23. Answer: D

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