Electrical Circuits

Why do electricians always wrap wires in plastic?

• Plastic comes in many different colors

• Plastic is a good electrical conductor

• Plastic makes the wires easy to bend

• Plastic is a good electrical insulator

What is electricity?

• A type of science

• A type of food

• A type of energy

• A type of light

This object opens and closes the circuit

• Wire

• Switch

• Battery

• Resistor

Circuit "A" is broken, because:

• the switch is open

• the switch is closed

• the switch is black

• the switch is not there

Identify the part of the circuit that is labeled 1.

• battery

• wire

• switch

• bulb

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

What is missing from this circuit? Why would the light bulbs be off?

• The battery, there is no power for the circuit to work.

• The switch is open, so the circuit is broken.

• The third light bulb, that is needed to complete the circuit.

• The wires are not connected properly.

This rubber ducky would block the flow of electricity, because:

• it is a conductor

• it is an insulator

• it is yellow

• it completes the circuit

What is this?

• Battery

• Bulb

• Wire

• Motor

• Switch

Name the components in this torch? Number 1

• Bulb

• Switch

• Wire

• Batteries