Electric circuits

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Questions and answers

· 6 questionsShow answers
  1. 1. What does a circuit need for a bulb to light?
    • Correct answer: A complete loop with a power source
    • Only a bulb
    • A switch that is open
    • Two batteries and no wires
  2. 2. What happens to the bulb when you open the switch?
    • Correct answer: It goes out
    • It gets brighter
    • It stays on
    • It changes colour
  3. 3. Which material conducts electricity?
    • Correct answer: Copper
    • Plastic
    • Wood
    • Rubber
  4. 4. Which of these is an electrical insulator?
    • Correct answer: Plastic
    • Copper
    • Steel
    • Aluminium foil
  5. 5. What does a cell (battery) do in a circuit?
    • Correct answer: Provides the energy
    • Stops the current
    • Measures the current
    • Gives off light
  6. 6. You add more bulbs in a row to a circuit with one cell. What happens to each bulb?
    • Correct answer: It gets dimmer
    • It gets brighter
    • It changes colour
    • It starts to flash

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