Grade 7 Physics: Simple Circuits Quiz

What is an electric circuit?

• A path with no energy flow

• A closed path in which electric current travels

• A path for only light to travel

• A path that only conducts heat

What does an electric circuit transform?

• Chemical energy to mechanical energy

• Electrical energy to other forms of energy

• Light energy to sound energy

• Thermal energy to electric energy

What is the role of a battery in a circuit?

• To make wires

• To store electrical energy

• To provide a source of electrical energy

• To increase resistance

What is an electric conductor?

• A device that uses energy

• A material that allows current to flow

• A type of battery

• A switch that opens circuits

What material is commonly used for electric wires?

• Aluminum

• Plastic

• Copper

• Iron

What happens when a circuit is open?

• Current flows freely

• Current cannot flow

• The battery charges

• The light bulb glows brightly

What does a switch do in an electric circuit?

• Increases the current

• Changes the circuit's path

• Opens or closes the circuit

• Measures voltage

Which component is NOT part of a simple circuit?

• Battery

• Wire

• Resistor

• Light bulb

What is the flow of electrons in a circuit?

• From positive to negative terminal

• From negative to positive terminal

• Randomly in all directions

• Only through the battery

What happens to the light bulb if the circuit is broken?

• It glows brighter

• It stops glowing

• It flickers

• It explodes