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5 Written questions

5 Matching questions

  1. fuse
  2. circuit breaker
  3. proton
  4. volt
  5. direct current
  1. a wire that melts an breaks a circuit if too much current is flowing
  2. b switch that opens a circuit if too much current is flowing
  3. c unit used to measure electromotive force
  4. d current in which electrons always flow in the same direction
  5. e atomic particle with a positive electric charge

5 Multiple choice questions

  1. opposition to the flow of electrons
  2. circuit in which electric current can follow more than one path
  3. positive or negative pole of an electrochemical cell
  4. form of energy caused by moving electrons
  5. materials that prevent electric charges from flowing through them easily

5 True/False questions

  1. batteryunit used to measure electric current

          

  2. conductorsmaterials that prevent electric charges from flowing through them easily

          

  3. ohmunit used to measure resistance

          

  4. ohm's lawcurrent in a wire is equal to the voltage divided by the resistance

          

  5. electrolytesubstance that dissolves in water to form a conducting solution