Science 4 Unit 4 Electricity Review

What is needed to complete an electrical circuit?

• A. A switch and a battery

• B. A battery, wires and bulb

• C. A switch and an insulator

• D. A lamp and a fan

What happens if a circuit is broken?

• A. The current stops flowing

• B. The current moves faster

• C. The circuit becomes stronger

• D. The lamp becomes brighter

Which material is a good conductor of electricity?

• Rubber

• Plastic

• Wood

• Copper

What is the function of a battery in a circuit?

• To control the flow of electricity

• To act as an insulator

• To provide energy

• To stop the circuit

Which of the following is an insulator?

• Aluminum

• Water

• Wood

• Copper

What is the job of a switch in a circuit?

• A. To control the flow of electricity

• B. To store electricity

• C. To act as a battery

• D. To increase voltage

In which type of circuit will a lamp light up?

• A. A circuit with an open switch

• B. A circuit with a closed switch

What is electricity?

• A. A form of energy

• B. A type of metal

• C. A chemical reaction

• D. A sound wave

What happens when you add more batteries to a simple circuit?

• The lamp will become dimmer

• The circuit will break

• The lamp will become brighter

• The lamp will turn off

Which of these objects is an electrical appliance?

• Plastic cup

• Wooden chair

• Smartphone

• Paperclip