eli watkins - ms white vocab words

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Across
  1. 2. any mechanical force that tends to oppose motion
  2. 6. an electrical device that provides a path for electrical current to flow
  3. 8. an electrical device that can interrupt the flow of electrical current when it is overloaded
  4. 11. phenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removed
  5. 14. attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
  6. 16. meter that measures the potential difference between two points
  7. 18. the lines of force surrounding a permanent magnet or a moving charged particle
  8. 19. fastening electrical equipment to earth
  9. 21. the entire frequency range of electromagnetic waves
  10. 22. field a field of force surrounding a charged particle
  11. 23. a device that trips like a switch and opens the circuit when overloaded
Down
  1. 1. a device designed to transmit electricity, heat, etc.
  2. 3. a meter that measures the flow of electrical current in amperes
  3. 4. the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
  4. 5. electrical conduction through a gas in an applied electric field
  5. 7. a material such as glass or porcelain with negligible electrical or thermal conductivity
  6. 9. engine that converts mechanical energy into electrical energy by electromagnetic induction
  7. 10. electric current is directly proportional to voltage and inversely proportional to resistance; I = E/R
  8. 12. motor a motor that converts electricity to mechanical work
  9. 13. a device that attracts iron and produces a magnetic field
  10. 15. a flow of electricity through a conductor
  11. 17. measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
  12. 20. electricity electricity produced by friction