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- 1. Multiple Choice
Why is electrical wire made from metal?
to insulate electricity
to conduct electricity
because it bends easily
because metal is cheap
- 2. Multiple Choice
Why is there plastic coating around a metal wire?
to keep the wire warm
to insulate electricity
so it looks nice
to conduct electricity
- 3. Multiple Choice
If you added an extra battery to a circuit with a bulb, what would happen to the bulb?
become dimmer
no change
become brighter
turn off
- 4. Multiple Choice
What does this sign mean?
electricity is dangerous
lightning nearby
requires batteries
requires mains power
- 5. Multiple Choice
What does this symbol represent?
a buzzer
a cell
a bulb
two cells
- 6. Multiple Choice
What does this symbol represent?
a bulb
a switch (on)
a buzzer
a cell
- 7. Multiple Choice
Look at this diagram. What is wrong with the circuit?
too many cells
nothing is wrong
too many bulbs
a gap in the circuit
- 8. Multiple Choice
Look at this diagram. Which bulb will light up?
only bulb A
neither
both
only bulb B
- 9. Multiple Choice
Which of these is the correct symbol for a bulb?
- 10. Multiple Choice
Which of these use mains electricity?
Hairdryer
TV remote control
Toaster
Mobile Phone
Television
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