7.4 CW 2

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Across
  1. 3. transfer of thermal energy between materials because of collisions between particles
  2. 5. energy that is carried by electromagnetic waves
  3. 9. energy carried by an electric current
  4. 14. force that resists the motion of two surfaces that are touching
  5. 15. the scale many scientists use to measure temperature
  6. 17. the scale that most other countries use to measure temperature
  7. 18. the expanding of matter due to the thermal energy increasing, causing its particles to spread out
  8. 19. Matter in which atoms are constantly moving around and bumping into each other.
  9. 21. force of attraction between any two masses
  10. 22. nonrenewable energy resources made of the remains of ancient organisms and is burned as an energy source
  11. 23. energy that is stored in the nucleus of an atom
  12. 24. energy carried by sound
  13. 26. a device that regulates the temperature of a system
  14. 30. the potential energy stored within atoms and molecules and is observed when a chemical reaction occurs
Down
  1. 1. sum of kinetic and potential energy of the particles in matter due to their random motion
  2. 2. energy that is stored in an object because of the object’s position
  3. 4. energy cannot be created or destroyed, it can only be transformed from one form to another
  4. 6. a push or pull exerted on an object
  5. 7. energy an object has because of its motion
  6. 8. total energy of an object or group of objects due to large-scale motions and interactions
  7. 10. transfer of thermal energy by the movement of particles from one part of a material to another
  8. 11. the amount of kinetic energy an object has depends on the object’s _________ _______ _________
  9. 12. transfer of thermal energy from one material to another by electromagnetic waves
  10. 13. a measure of how hot or cold something is compared to a reference point.
  11. 16. Matter in which atoms vibrate so much that they are far apart.
  12. 20. type of energy resource that is used faster than it is replaced
  13. 25. type of energy resource that is replaced as fast as, or faster than, it is used
  14. 27. Matter in which atoms are closely spaced and vibrate in a fixed position.
  15. 28. the ability to cause change
  16. 29. transfer of thermal energy from a warmer object to a cooler object