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G(4) Science(electricity)

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  • Look at the picture. If you use too many cells in the circuit, what happened the bulbs?
    the bulbs pop or burn out.
  • a word for the flow of charged particles
    current
  • What happened the bulb if you close a switch in a complete circuit?
    the bulb light up because electric current flow around the circuit.
  • How many types of magnets? What are they?
    bar/horseshoe/wand/disc-shaped and ring shaped magnets
  • What is the function of a cell?
    pushes electric current around a circuit.
  • If the two poles of the magnets pull towards each other, what is it called?
    attraction
  • How many votes does the mains electricity have?
    110V/220V
  • a word for a component that makes a buzzing noise when the circuit is complete.
    buzzer
  • Unit for the strength of electricity.
    volt
  • If two poles of magnets push away, what is it called?
    repulsion
  • If we put the two positive terminals of the cells in a torch together, will the bulb light up? Why?
    No .because the electric current cannot flow round the circuit.
  • What is voltage?
    the strength of the electricity
  • a word for a source of energy to push electricity around a circuit.
    cell
  • What happened to the bulb when you break the circuit?
    The bulb does not light up.
  • What kind of the components do we need to make a simple circuit?
    cell/ s bulb or lamp or a bulb holder/ copper wire covered in plastic
  • Look at the picture . When you add more bulbs to the circuit, what happened the bulbs?
    Bulbs shine less brightly.
  • How many terminals does a cell have? What are they?
    two/a positive and a negative terminals
  • a word for hole in the wall that link the plug on an appliance to the cables going to the electricity source
    wall socket
  • Which metals are magnetic?
    iron/steel
  • What are called mixture of metals?
    alloys
  • Look at the picture. Each cell has 1.5 V and a buzzer has 3 V. How did the buzzer work when you had two cells in the circuit?
    Buzzer can be able to work because it has a certain strength of electricity.
  • How many poles does the magnet have? What are they?
    two/north and south poles.