Understanding Electricity and Circuits

What is electricity?

• A type of gas

• A flow of tiny particles called electrons

• A type of magnet

• A type of sound

What do we use to measure electric current?

• A thermometer

• A ruler

• An ammeter

• A voltmeter

Which of these materials is a good conductor of electricity?

• Plastic

• Wood

• Copper

• Rubber

What happens if you break a circuit?

• The current stops flowing

• The current speeds up

• The current slows down but still flows

• The battery explodes

What does a battery do in a circuit?

• Stores electricity

• Provides energy to push the current

• Stops the flow of electricity

• Cools down the wires

What unit is used to measure voltage?

• Amps

• Volts

• Watts

• Ohms

What happens when you add more bulbs to a simple series circuit?

• They get brighter

• They stay the same brightness

• They get dimmer

• The circuit stops working

What symbol is used to show a battery in a circuit diagram?

• ⭕

• 📏

• ➖| |➖

• 💡

What is the role of a resistor in a circuit?

• To increase the current

• To decrease the voltage

• To limit the flow of current

• To store electrical energy

Which of the following is a unit of electrical power?

• Joules

• Watts

• Volts

• Amperes