Understanding Circuits Quiz

What is the difference between a series and a parallel circuit?

• A series circuit has only one path for electricity, and a parallel circuit has many paths.

• A parallel circuit has only one path for electricity, and a series circuit has many paths.

• Both have the same path for electricity.

• A series circuit does not use electricity.

What happens in a series circuit if one resistor is added?

• The bulbs shine brighter.

• The current decreases.

• The circuit breaks.

• The switch stops working.

Which of the following is an example of a parallel circuit?

• Circuit 2

• Circuit 7

• Circuit 5

• Circuit 6

Why do people use parallel circuits in homes?

• If one light goes out, the others stay on.

• They are cheaper.

• They use more electricity.

• They do not work with switches.

Compare circuit 2 and circuit 9. What is the main difference between them?

• Circuit 2 is a series circuit, and circuit 9 is a parallel circuit.

• Circuit 2 is a parallel circuit, and circuit 9 is a series circuit.

• Both circuits have the same structure.

• Circuit 9 does not allow electricity to flow.

If the resistor is removed, what will happen?

• The light bulb may shine brighter.

• The switch will stop working.

• The battery will stop working.

• The circuit will break.

What happens if another resistor is added to the circuit?

• The light bulb will be dimmer.

• The light bulb will shine brighter.

• The switch will not work.

• The battery will stop working.

What happens if another light bulb is added in series?

• The bulbs will be dimmer.

• The bulbs will shine brighter.

• The switch will stop working.

• The battery will turn off.

What happens if we add another light bulb in parallel?

• Both bulbs will shine the same.

• The first bulb will turn off.

• The battery will stop working.

• The switch will not work anymore.

Compare circuit 2 and circuit 7. Which will have brighter bulbs?

• Circuit 7, because it has fewer bulbs.

• Circuit 2, because it has more bulbs.

• Both will be the same.

• The battery will decide.