G7- L.4- Electric Circuits - Practice

What is an electrical circuit?

• A broken path that electric charges cannot flow through.

• A complete, unbroken path that electric charges can flow through.

• A path made only of wires.

• A device that produces light.

Which of the following is NOT a basic part of a circuit?

• Source of electrical energy

• Conducting wire

• Device that runs on electric energy

• Magnet

What is an example of a device that runs on electric energy in a circuit?

• Light bulb

• Battery

• Wire

• Switch

What is the function of a switch in an electric circuit?

• To provide electrical energy

• To conduct electricity

• To turn the circuit on or off

• To produce light

If the wire in a circuit is cut, what will happen to the electric current flow?

• The current will flow faster.

• The current will stop flowing.

• The current will flow in reverse.

• The current will produce more light.

What happens when a switch in an electric circuit is closed?

• Charges can flow through the circuit (unbroken circuit)

• Charges cannot flow through the circuit (broken circuit)

• The circuit is incomplete and the bulb does not light up

• Energy is not conserved in the circuit

Why doesn’t the light bulb produce light when the switch is open?

• There are gaps in the circuit

• The battery is fully charged

• The wire is made of copper

• The circuit is unbroken

In a table lamp, what forms of energy are produced from electrical energy?

• Light and heat

• Sound and motion

• Chemical and nuclear

• Magnetic and gravitational

Which component in a simple electric circuit is responsible for providing energy?

• Battery

• Wire

• Light bulb

• Switch

If the switch in a circuit is open, what strategic action could you take to make the light bulb turn on?

• Close the switch to complete the circuit

• Remove the battery

• Disconnect the wire

• Replace the light bulb with a resistor