Science 7 Unit 6 Vocabulary

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Across
  1. 4. electric charges that build up on an object
  2. 6. a material that allows electricity, heat or sound to pass through it easily
  3. 7. a device that changes stored chemical energy into electrical energy
  4. 8. the unit for current
  5. 10. the unit used to measure how much electrical potential a device has
  6. 14. a subatomic particle with a positive charge that is located in the nucleus of an atom
  7. 17. the full range of frequencies of electromagnetic waves
  8. 20. a form of energy commonly used for lights, electric motors, and heating.
  9. 21. the action between two opposing magnetic poles
  10. 22. an output device such as a lightbulb or a motor
  11. 23. a subatomic particle with a negative charge
Down
  1. 1. a type of matter which has specific physical and chemical properties by which it can always be identified; contains only one kind of element, or one kind of compound
  2. 2. a material that does not easily conduct electricity or heat
  3. 3. a closed path that electricity can flow through
  4. 5. a metal object that acts as a magnet when an electric current moves through it
  5. 9. an object with a north and south pole that produces a magnetic field
  6. 11. a mechanical device that can connect or disconnect parts of an electric circuit
  7. 12. the transfer of heat energy within an object, or between objects that are touching each other
  8. 13. a measurement of the flow of electric charge or the flow of that electric charge
  9. 15. a region in space near a magnet or electric current in which magnetic forces can be detected
  10. 16. a machine that converts mechanical energy into electrical energy
  11. 18. the ability to do work or cause change; can be changed into different forms and can move between objects
  12. 19. to force an object away or to keep it away
  13. 23. the transfer of energy from one object to another, such as heat energy