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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.
Oops!
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a word for the flow of charged particles
current
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What happened the bulb if you close a switch in a complete circuit?
the bulb light up because electric current flow around the circuit.
Oops!
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How many types of magnets? What are they?
bar/horseshoe/wand/disc-shaped and ring shaped magnets
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What is the function of a cell?
pushes electric current around a circuit.
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If the two poles of the magnets pull towards each other, what is it called?
attraction
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How many votes does the mains electricity have?
110V/220V
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a word for a component that makes a buzzing noise when the circuit is complete.
buzzer
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Unit for the strength of electricity.
volt
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If two poles of magnets push away, what is it called?
repulsion
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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.
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What is voltage?
the strength of the electricity
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a word for a source of energy to push electricity around a circuit.
cell
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What happened to the bulb when you break the circuit?
The bulb does not light up.
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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
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Look at the picture . When you add more bulbs to the circuit, what happened the bulbs?
Bulbs shine less brightly.
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How many terminals does a cell have? What are they?
two/a positive and a negative terminals
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a word for hole in the wall that link the plug on an appliance to the cables going to the electricity source
wall socket
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Which metals are magnetic?
iron/steel
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What are called mixture of metals?
alloys
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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.
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How many poles does the magnet have? What are they?
two/north and south poles.
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