Ch 2 Review

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Across
  1. 2. if a force is applied to an object in the same direction as it moves through a distance, ____ has been performed.
  2. 4. the state of matter of a substance is generally determined by its ______
  3. 6. the state of matter with constant volume, but changes shape
  4. 7. the ___ law of thermodynamics says energy cannot be created or destroyed
  5. 9. anything that occupies space and has mass
  6. 15. found in the nucleus of every atom
  7. 18. the force that formed coal
  8. 19. the force that is most important to geologists
  9. 20. the force exerted by a stalactite
  10. 21. evaporation is a type of ___________
  11. 25. the word atom comes from a Greek word meaning ____
  12. 27. this mixture is a uniform combination of two or more substances
  13. 30. ____ energy is the sum of the kinetic energy found in the particles of a substance
  14. 31. all forces act in ______
  15. 32. this force directly affects your weight
  16. 34. the force that is responsible for grinding and wearing away of rock
  17. 36. a pure substance made of one kind of atom
  18. 37. sounds that are caused by waves too slow the the human ear to detect
  19. 40. a pure substance can be found on the _____ table of the elements
  20. 41. if an object is moving is has ____ energy
  21. 42. the ability to do work
Down
  1. 1. when identical particles join together in a repeating, 3-D pattern
  2. 3. sound vibrations that are too fast for the human ear
  3. 5. the state of matter in which particles have the most energy
  4. 8. this mixture shows distinct particles, parts or phases
  5. 10. matter and ____ are both found in the universe and are real
  6. 11. burning a piece of wood is an example of a ___ change
  7. 12. If you measure an object and find that it contains 20g of matter, you have determined its ____
  8. 13. this type of energy causes the northern lights
  9. 14. _______ energy can be converted to kinetic energy
  10. 16. most light energy is _____ to us
  11. 17. there are ___ states of matter
  12. 22. these have no electrical charge
  13. 23. a substance's state of matter is most directly affected by its ____
  14. 24. sounds that can be heard with the unaided ear
  15. 26. ions are formed by an atom gaining or losing an _____
  16. 27. the flow for thermal energy from warmer to cooler place
  17. 28. the distance between two crests of a wave
  18. 29. this type of energy is the source of energy within the sun
  19. 33. a solid changes directly into vapor in this phase change
  20. 35. sweetened tea is a solution and a ______
  21. 38. a push or a pull
  22. 39. the ____ point can vary based on the elevation you live because air pressure can be lower or higher