Electricity and Black History Crossword

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Across
  1. 4. A material that allows electricity to flow
  2. 7. Invented the gas mask (last name)
  3. 8. the flow of electrons
  4. 10. when electricity has more than one path to c omplete the circuit.
  5. 11. the complete circle of electrical flow
  6. 13. When electricity flows in a single path
  7. 15. invented Home Security Systems
  8. 17. invented the Pacemaker
  9. 19. If the voltage is 176v & resistance is 88 ohms, current?
  10. 20. A device that is used to slow down the current
  11. 21. In order for a circuit to work it must be _______ so electricity can flow
  12. 22. invented the folding cabinet bed
Down
  1. 1. this material is a good insulator and is used to make gloves
  2. 2. An object that usually provide energy to a small circuit
  3. 3. invented a ventilated shoe
  4. 5. Electricity flows from ______ to Positive
  5. 6. invented the almanac
  6. 9. This metal is a good conductor and is used to make wire.
  7. 11. The speed or flow of electrical charge
  8. 12. A material that doesn't allow electricity to flow
  9. 14. This is the formula for voltage (just 3 letters)
  10. 16. The force that pushes the current.
  11. 18. A law that states the sum of currents in equals sum of currents going out.