Electricity

Which materials are good conductors of electricity?

• Copper
• Wood
• Aluminium
• Plastic

What is the role of a switch in a circuit?

• To open or close the circuit
• To increase the voltage
• To change the direction of current
• To break the flow of electricity

Which of the following can be used as a power source in a circuit?

• Light bulbs
• Resistors
• Solar panels
• Batteries

What does a resistor do in a circuit?

• Limits the flow of electricity
• Stores electrical energy
• Increases the voltage
• Acts as a battery

Which of the following can be affected by electricity?

• Light bulbs
• Motors
• Plastic objects
• Metal objects

What is a circuit?

• A device that generates electricity

• A type of battery
• A closed loop through which electricity flows

• An object connected with wires

Which materials are good conductors of electricity?

• Rubber
• Aluminium
• Plastic
• Copper

What is the role of a switch in a circuit?

• To open or close the circuit
• To increase the voltage
• To store electricity
• To provide energy

What happens when you add more batteries in series?

• The voltage increases
• The current decreases
• The circuit becomes open
• The brightness of a bulb increases

Which of the following can be used to break a circuit?

• A battery
• A wire
• A switch
• A motor