Electricity & Circuits

What is the role of an insulator in a circuit?

• To allow the flow of electricity.

• To prevent the flow of electricity.

• To increase the current in the circuit.

• To store electrical energy.

What do we call the part of the circuit that uses electricity to do work?

• Source

• Load

• Resistor

• Capacitor

A/An ____________ is a material that electricity CANNOT pass through easily.

• Conductor

• Insulator

• Semiconductor

• Resistor

Material that electricity CAN pass through easily is called a/an ________________.

• insulator

• conductor

• semiconductor

• dielectric

The D-Cell is the ____________ of electricity in the electricity experiments we performed.

• source

• conductor

• insulator

• resistor

What is the purpose of a switch in a circuit?

• To open or close the circuit.

• To increase the voltage in the circuit.

• To measure the current flowing through the circuit.

• To provide a path for the current to flow continuously.

What is a common example of a conductor?

• Aluminum foil

• Copper wire

• Plastic tubing

• Wooden stick

What is the purpose of a battery in a circuit?

• To provide energy.

• To store data.

• To increase resistance.

• To convert AC to DC.

What is a common example of an insulator?

• Rubber

• Copper

• Aluminum

• Iron

What happens when a circuit is open?

• Electricity cannot flow.

• Electricity flows freely.

• The circuit becomes a short circuit.

• The circuit generates heat.