One-word Answer Type Questions – Electricity and Circuits
1. Question: What is the device used to open or close an electric circuit?
• Answer: Switch
• Explanation: A switch is used to stop or allow the flow of electricity in a circuit by breaking or completing the path.
2. Question: Which material allows electric current to pass through it?
• Answer: Conductor
• Explanation: Conductors like copper and aluminium allow the flow of electric current because they have free electrons.
3. Question: What do we call a circuit in which the current flows continuously?
• Answer: Closed
• Explanation: In a closed circuit, there is no gap or break, so the current can flow properly.
4. Question: What is the source of electricity in a torch?
• Answer: Battery
• Explanation: A torch uses cells arranged together as a battery to provide electricity.
5. Question: What is used to connect various components in an electric circuit?
• Answer: Wire
• Explanation: Wires, usually made of copper or aluminium, are used to connect devices and complete the circuit.
6. Question: What is produced when electric current flows through a bulb?
• Answer: Light
• Explanation: When current passes through the filament of a bulb, it heats up and gives off light.
7. Question: What is the name of the thin wire inside an electric bulb?
• Answer: Filament
• Explanation: The filament, usually made of tungsten, glows when heated by electric current.
8. Question: What is the shape of the wire in a torch bulb that glows?
• Answer: Coil
• Explanation: The filament is coiled to increase its length and produce more light without breaking.
9. Question: Which material does not allow electricity to pass through?
• Answer: Insulator
• Explanation: Insulators like plastic, rubber, and wood do not allow current to pass through them.
10. Question: What do we call the path through which electric current flows?
• Answer: Circuit
• Explanation: A circuit is the complete path that allows electric current to flow from the source to the device and back.
