Chapter 7 Crossword Review

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Across
  1. 1. Device that stores chemical energy and converts it to _____________________ energy.
  2. 5. _____________________ energy is a combination of kinetic energy and potential energy.
  3. 9. A radio plugged into the wall that creates sound energy begins with ___________________ energy.
  4. 10. Humans have this _____________ energy from the food they eat.
  5. 13. Microscopes, cameras, and other types of lenses bend light in a process called _____________________.
  6. 15. _____________________ materials block all light from passing through.
  7. 16. (20 clues)
  8. 17. Potential energy is energy an object has due to its ________________ or state.
  9. 18. An electric current is the flow of __________________ particles.
  10. 20. Sound energy travels through the ____________________ of particles.
  11. 22. The __________________ of an atom is made of protons and neutrons.
  12. 25. In a _________________ circuit, devices are connected by more than one loop.
  13. 26. One thing that can happen when light hits an object is the light gets _____________________ or taken in.
  14. 29. A ____________________ is used in a circuit to turn a device on and off.
  15. 31. In an electric circuit, there is usually some incidental _________ energy created.
  16. 32. When light ____________________ occurs, light bounces off an object and still moves in a straight line.
  17. 33. If the number of _________________ and electrons are equal, then an object has a neutral charge.
  18. 34. Light travels in a _____________ line.
  19. 36. A book on a high shelf has this type of potential energy called _____________________ energy.
  20. 38. A ________________ circuit has no gaps to stop the flow of electricity.
  21. 39. _____________ is the energy of motion.
Down
  1. 2. Energy can _____________________ from one form to another.
  2. 3. In a _________________ circuit, there is only one path the current can follow.
  3. 4. Materials like rubber that do not allow electricity to pass through easily are called _____________________.
  4. 6. Opposite charges __________ each other.
  5. 7. An electric ___________________ provides a complete path for current to flow.
  6. 8. Subatomic particles with a neutral charge are called _____________________.
  7. 11. Materials like copper allow electricity to flow easily and are called _____________________.
  8. 12. _____________________ is heat transfer through direct touch between objects.
  9. 14. When you plug in a fan, it transforms electrical energy to _____________ energy.
  10. 19. Like charges __________ each other.
  11. 20. Empty space that light can travel through but sound cannot is called a _____________________.
  12. 21. After rubbing a balloon on your hair, your hair is attracted to the balloon since the balloon now has a ________________ charge.
  13. 23. Negatively charged subatomic particles are called _____________________.
  14. 24. Part of a circuit that limits the power of electrical current is a _____________________.
  15. 27. Heat energy traveling through space as electromagnetic waves is called _____________________.
  16. 28. Energy that is stored based on position or condition is _____________________ energy.
  17. 30. Transfer of energy that raises temperature and always moves from warmest to coolest is _____________________.
  18. 35. When sound energy vibrates quickly, it has a _________ pitch.
  19. 37. _____________________ is a property of sound described as loud or soft.