Understanding Electric Circuits Quiz

What is needed for electricity to flow in a circuit?

• A broken wire

• An open switch

• A closed and complete circuit

• A plastic cover

What do we call the flow of electrons around a circuit?

• Voltage

• Resistance

• Power

• Electricity

Which of the following is a source of energy in a circuit?

• Light bulb

• Wire

• Cell or battery

• Buzzer

Which material is best for conducting electricity?

• Plastic

• Rubber

• Copper

• Wood

What happens if the switch is off (open)?

• The light bulb shines brighter

• Electricity flows faster

• Electricity cannot flow

• The wire gets hot

What happens if the wires in a circuit are made longer?

• The light gets brighter

• Nothing changes

• The energy increases

• The bulbs become dimmer

When is a switch considered "closed"?

• When it’s off

• When the pathway is broken

• When electricity can flow

• When no electrons move

What is the correct direction of electron flow in a circuit?

• Positive to negative

• Clockwise only

• In circles

• Negative to positive

Which component in a circuit lights up when electricity flows?

• Wire

• Cell

• Switch

• Bulb

What does the symbol for a switch (on/closed) look like?

• Two circles with a line between

• One open circle

• A cross

• A wavy line