⚡ Electricity: Circuits and their Components
Science – Chapter 3 (Questions & Answers)
Q1. What is electricity?
Answer: Electricity is a form of energy that flows through a conductor and can be used to do work.
Q2. What is an electric circuit?
Answer: An electric circuit is a closed path through which electric current flows.
Q3. What are the main components of a circuit?
Answer: Battery (cell), wires, switch, and bulb.
Q4. What is a conductor?
Answer: A conductor is a material that allows electricity to pass through it easily, such as copper.
Q5. What is an insulator?
Answer: An insulator is a material that does not allow electricity to pass through it, such as plastic.
Q6. What is a switch?
Answer: A switch is a device that opens or closes a circuit to control the flow of electricity.
Q7. What happens in an open circuit?
Answer: In an open circuit, the path is broken and electricity does not flow.
Q8. What happens in a closed circuit?
Answer: In a closed circuit, the path is complete and electricity flows.
Q9. Why are electric circuits important?
Answer: They are used in electrical devices to make them work properly.