Chapter 14 & 15

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Across
  1. 3. a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
  2. 4. a Vshaped object whose sides are two inclined planes sloped toward each other
  3. 9. the potential energy of an object that is stretched or compressed
  4. 11. a device that changes a force & helps you do work
  5. 12. a simple machine that consists of a rope that fits into a groove in a wheel
  6. 17. the chemical energy stored in living things
  7. 18. the energy an object has due to its motion
  8. 22. the energy stored in atomic nuclei
  9. 24. energy that is stored as a result of position or shape
  10. 26. the energy stored in chemical bonds
  11. 27. a source of energy that can be replaced in a relatively short period of time
  12. 28. a slanted surface along which a force moves an object to a different elevation
  13. 29. the product of distance and the force in the direction an object moves
Down
  1. 1. the rate of doing work
  2. 2. potential energy that depends upon an object’s height above a reference point
  3. 5. thermal energy beneath Earth’s surface
  4. 6. the ability to do work
  5. 7. an inclined plane wrapped around a cylinder
  6. 8. sunlight that is converted into usable energy
  7. 10. and axle a simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius
  8. 13. energy that travels in waves
  9. 14. the practice of finding ways to use less energy or to use energy more efficiently
  10. 15. fuels rich deposits of hydrocarbon mixtures that formed from the remains of organisms
  11. 16. a rigid bar that is free to move around a fixed point
  12. 19. the energy associated with the motion and position of everyday objects
  13. 20. energy obtained from flowing water
  14. 21. energy dealing with temperature
  15. 23. the energy associated with electric charges
  16. 25. the process of changing energy from one form to another