Unit 9 Crossword

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Across
  1. 6. An instrument used to measure changes in thermal energy
  2. 9. The transfer of thermal energy from one object to another because of temperature difference
  3. 10. Inclined plane wrapped around a cylinder
  4. 11. Consists of two disks or cylinders, each one with a different radius
  5. 12. Consists of a rope that fits into a groove in a wheel
  6. 15. Ratio of work output to work input
  7. 17. Rigid bar that is free to move around a fixed point
  8. 18. The transfer of energy by waves moving through space. As an object’s temperature increases, the rate at which it radiates energy increases.
  9. 19. The amount of heat needed to raise the temperature of one gram of a material by one degree Celsius.
  10. 22. ________ = force X distance
  11. 23. The total potential and kinetic energy of all the particles in an object
  12. 24. Slanted surface along which a force moves an object to a different elevation
  13. 25. _________________reactions - take in heat
Down
  1. 1. Transfer of thermal energy with no overall transfer of matter
  2. 2. A measure of how hot or cold an object is compared to a reference point
  3. 3. Combination of two or more simple machines that operate together
  4. 4. ________ = work / time
  5. 5. The number of times that the machine can increase the input force
  6. 7. __________ Mechanical Advantage = Resistance Force / Effort Force
  7. 8. The study of conversions between thermal energy and other forms of energy
  8. 13. V-shaped objects whose sides are inclined planes sloped toward each other
  9. 14. Unit of measure for power
  10. 16. The transfer of thermal energy when particles of a fluid move from one place to another via convection currents.
  11. 20. ___________reactions - give off heat
  12. 21. Unit of measure for Work
  13. 24. ___________ Mechanical Advantage = Effort Distance / Resistance Distance