untitled

The circuit component represented by this symbol is a

• cell

• battery

• voltmeter

• motor

The circuit component represented by this symbol is a

• cell

• battery

• voltmeter

• motor

The circuit component represented by this symbol is a

• closed switch

• battery

• voltmeter

• open switch

What is a switch's function in a circuit?

• to make the current hotter or colder
• turn on and off the flow of current
• the pathway that current flows
• to add more power to the circuit

Why is electrical wiring usually covered with a layer of plastic?

• To make it look pretty

• To help electricity flow along the wire

• To make it safe

• To add more energy

What needs to be done to this circuit so that the lamp lights up?

• Close the switch

• Add a power source and close the switch

• Add another lamp and close the switch

• Add another lamp and a switch

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 happens to the brightness of a bulb if you add more cells to a circuit?

What happens to the brightness of a bulb when a second bulb is added to the circuit?