P2 Science · Chapter 12brightbit.net/worksheets
Electricity — Simple Circuits
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
For a light bulb to glow in a simple circuit, the circuit must be:
(a) Complete (closed)(b) Broken (open)(c) Very long(d) Connected to two batteries
- 2.
What is the purpose of a switch in an electrical circuit?
(a) To open or close the circuit (turn on/off)(b) To increase voltage(c) To store electricity(d) To change the direction of current
- 3.
Which of these is a good conductor of electricity?
(a) Copper wire(b) Rubber band(c) Wooden stick(d) Plastic bag
- 4.
In a circuit diagram, what symbol represents a battery?
(a) Two parallel lines of different lengths(b) A circle with an X(c) A wavy line(d) A triangle
- 5.
If a wire in a circuit is broken, the bulb will:
(a) Not light up(b) Glow brighter(c) Glow dimmer(d) Stay on for a while then go off
- 6.
Why should you NEVER touch electrical sockets with wet hands?
(a) Water conducts electricity and could cause electrocution(b) It damages the socket(c) Water makes the switch slippery(d) It wastes electricity
- 7.
Two bulbs connected in a single loop (series circuit) — if one bulb breaks, what happens to the other?
(a) It goes out too(b) It glows brighter(c) Nothing changes(d) It flashes
- 8.
Which of these is an example of electrical energy being converted to light energy?
(a) A light bulb glowing(b) A fan spinning(c) A heater warming a room(d) A speaker playing music
- 9.
A fuse in a circuit is designed to:
(a) Melt and break the circuit if too much current flows(b) Increase the current(c) Store extra electricity(d) Make the circuit work faster
- 10.
Why do birds sitting on power lines not get electrocuted?
(a) They are not connecting two different voltage points — current has no reason to flow through them(b) Birds are insulated by feathers(c) Power lines carry very low voltage(d) Birds' feet are non-conductive
Answer key — P2 Science: Electricity — Simple Circuits
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- 1.(a) Complete (closed)
- 2.(a) To open or close the circuit (turn on/off)
- 3.(a) Copper wire
- 4.(a) Two parallel lines of different lengths
- 5.(a) Not light up
- 6.(a) Water conducts electricity and could cause electrocution
- 7.(a) It goes out too
- 8.(a) A light bulb glowing
- 9.(a) Melt and break the circuit if too much current flows
- 10.(a) They are not connecting two different voltage points — current has no reason to flow through them
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