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Science
Changing circuits

Starter quiz

  • Why won’t electricity flow around this circuit?
    Why won’t electricity flow around this circuit?
    • There is no cell.
    • The switch is open.
    • The components are not all connected.  ✓
  • Which of these is a prediction?
    • The bulb got dimmer.
    • Attach the bulb to the other components.
    • We expect the bulb to get dimmer.  ✓
  • Which of these does not affect the brightness of a bulb in a circuit?
    Which of these does not affect the brightness of a bulb in a circuit?
    • the number of cells
    • the voltage of cells
    • the number of bulbs
    • the position of a bulb  ✓
  • The positive terminal of a ______ has to be connected to the positive terminal of the cell or battery for it to work.
    • 'buzzer' ✓
  • Match the action to the effect.
    Match the action to the effect.
    • increasing the voltage of cells
      ⇔
      increased electrical push to the circuit ✓
    • decreasing the voltage of cells
      ⇔
      decreased electrical push to the circuit ✓
  • Which of these would cause a bulb to get dimmer?
    • adding components to a circuit  ✓
    • adding cells to a circuit
    • removing components from a circuit
    • removing cells from a circuit  ✓
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