Chap 14+15

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