Electric Circuits Quiz

What is an electric circuit?

• A type of battery

• A material that resists electric flow

• A closed loop that allows electric current to flow

• A device that measures voltage

What does current (I) measure?

• The power consumed by a device

• The potential difference

• The flow of electric charge

• The resistance in a circuit

What is voltage (V) analogous to in the water pipe analogy?

• The flow of water

• The amount of water in the pipe

• The pressure pushing the water

• The size of the pipe

What role does a battery play in an electric circuit?

• It pushes electricity through the wire

• It acts as a conductor

• It measures current

• It provides resistance

What does resistance (R) do in a circuit?

• It opposes the flow of electric current

• It measures voltage

• It stores electric charge

• It increases the flow of electricity

What unit is used to measure resistance?

• Ohms (Ω)

• Watts (W)

• Volts (V)

• Amperes (A)

Which material is known for having low resistance?

• Rubber

• Plastic

• Wood

• Copper

What happens when resistance is high in a circuit?

• Voltage increases

• More current flows

• Power consumption decreases

• Less current flows

What is the SI unit of voltage?

• Amperes (A)

• Ohms (Ω)

• Watts (W)

• Volts (V)

What does a dimmer switch in a lamp use to control brightness?

• Voltage

• Current

• Power

• Resistance