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WorksheetsElectrical Circuits
Total questions: 20
Worksheet time: 20mins
Identify this symbol
single cell
two cells
three cells
four cells
Select all statements that are true.
It is a symbol for an ammeter.
Ammeter measures current in a circuit.
It is a symbol for a lamp.
Ammeter measures mass of a circuit.
Describe this electrical circuit.
It has two cells, three lamps and a switch.
It has three cells, two lamps and a switch.
It has two cells, three lamps and no switch.
It has three cells, two lamps and no switch.
What will be the symbol for these electrical components?
Why is silver NOT used to make electrical wires?
Because it is a poor conductor of electricity.
Because it is cheap and can tarnish.
Because it is a very good conductor of electricity.
Because it is expensive and can tarnish.
Why is tungsten used as a filament in light bulbs?
Because it can cause electrical energy to change to heat and light.
Because intense temperature makes the filament glow brightly.
Because it has very high meting point.
All of the answers.
Identify the type of circuit in the picture.
It is a straight circuit.
It is a series circuit.
It is a parallel circuit.
It is a parallelogram circuit.
Jamila connects two bulbs and a cell. How can she increase the brightness of the bulb?
Add another bulb to the series circuit.
Add another cell to the series circuit.
Remove the cell from the series circuit.
Add a motor to the series circuit.
These materials are electrical insulators.
aluminium
fabric
diamond
gold
glass
The picture shows some...
materials that allow electricity to flow through them easily.
good conductors
poor conductors
insulators
materials which do not allow electricity to flow through them
Select those which show the switch is open.
Mohammed connects two bulbs, a cell and a switch as shown in the picture. What will happen if he connects another bulb in the series circuit?
The bulbs will glow brighter.
The current in the circuit will increase.
The bulbs will glow dimmer.
The current will stay the same.
The current in the circuit will decrease.
Khaled connects a bulb, a cell, an ammeter and a switch in a series circuit. He switches it ON and the ammeter shows a current of 0.8 A. What will be the current if he connects 2 more cells in series.
0.8 A
2.8 A
1.6 A
2.4 A
Select the parallel circuit.
In which circuit will the bulb glow the brightest?
Toby tests different objects using a circuit as shown in the picture. Which objects will make the bulb light up?
pencil lead / graphite
plastic spoon
rubber gloves
gold bracelet
steel knife
Mona built an electrical circuit as shown in the picture. What will happen if she adds a motor to the series circuit?
The motor will turn fast.
The bulb will glow brighter.
The bulb will glow with the same brightness like before.
The bulb will glow dimmer.
Jack builds a series circuit with two cells and a buzzer. What will happen if he removes one cell from the circuit?
The buzzer will make a softer sound.
The current in the circuit will increase.
The buzzer will make a louder sound.
The current in the circuit will decrease.
Maria builds a circuit with a cell and a bulb. She connects another bulb to it in a parallel circuit. What will happen to the brightness of the bulb?
The brightness of each bulb will decrease.
The brightness of each bulb will increase.
The brightness of each bulb will remain the same as the first bulb when it was connected alone in a series circuit.
The bulbs will catch fire.
Rashed builds two circuits each with three bulbs and a battery. One circuit he connects all three bulbs in series and the other circuit he connects the bulbs in parallel. If he removes one bulb from each circuit, in which connection will all the bulbs go out?
Series circuit
Parallel circuit
Both the circuits
None of the circuits.
