Ch. 7 Magnetism & Its Uses

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Across
  1. 3. a device that uses an electromagnet to measure electric current
  2. 6. refers to the properties and interactions of magnets
  3. 8. electric current that reverses the direction in a regular pattern
  4. 10. electric current that is always in one direction through a wire
  5. 13. regions of a magnet that exert the strongest force
  6. 14. a device that changes electrical energy into mechanical energy
  7. 15. uses electromagnetic induction to transform mechanical energy into electrical energy
Down
  1. 1. a temporary magnet created when there is a current in a wire coil
  2. 2. a single wire wrapped into a cylindrical wire coil
  3. 4. the attractive or repulsive force between electric charges and magnets
  4. 5. region of space that surrounds a magnet and exerts
  5. 7. groups of atoms aligned with magnetic poles
  6. 9. the generation of an electric current by a changing magnetic field
  7. 11. the interaction between electric charges and magnets
  8. 12. a large wheel that rotates when pushed by water, wind, or steam