Ch 14-15

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