Electricity

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  1. 2. An imbalance of electric charges within or on the surface of a material (stuck)
  2. 7. A positive or negative charge that can be produced by subatomic particles that result in electrical energy.
  3. 12. The positioning of loads side by side in an electric circuit so that the electrical energy passes through one load at a time.
  4. 14. When electrical current flows along a different path from one that was intended.
  5. 16. A material through which charged particles are able to move.
  6. 17. Light dependent resistor that lowers it's resistance depending on its exposure to light.
  7. 19. a device for making and breaking the connection in an electric circuit.
  8. 22. Measure voltage
  9. 23. voltage is measured in
  10. 25. A substance that prevents the movement of thermal or electrical energy.
  11. 26. The relation between voltage, current and resistance, V=IR
  12. 28. a device having resistance to the passage of an electric current.
  13. 29. semiconductor electric devices that allow current to flow in one direction only.
  14. 30. Light emitting diode, a type of diode that emits light of a particular colour,
Down
  1. 1. The positioning of loads in an electric circuit so that they are connected to the battery separately.
  2. 3. resistance is measured in
  3. 4. (Direct Current) circuits the current flows in only one direction.
  4. 5. A material that conducts electrical energy in one form and insulates against electrical energy in another form.
  5. 6. A form of energy resulting from the existence of charged particles (electrons, protons, etc.), either statically as an accumulation of charge or dynamically as a current.
  6. 8. Electric current is measured in
  7. 9. A wire of high resistance; it will melt if too much current flows in the circuit
  8. 10. A positively charged subatomic particle in the nucleus of an atom.
  9. 11. Neutrons charge
  10. 13. (Alternating Current) circuits the current flow changes direction 50 times a second. So the current flows back and forth.
  11. 15. A temperature dependent resistor; a resistor that varies the flow of current according to the temperature that it is exposed to; commonly used for temperature control.
  12. 18. converts chemical energy into electrical energy by a chemical reaction.
  13. 20. Movement of negatively charged electrons around an electric circuit.
  14. 21. A negatively charged subatomic particle that moves in the space around an atomic nucleus.
  15. 24. load
  16. 27. measures current