Important Questions for Class 7 Curiosity Chapter 3 Electricity: Circuits and their Components
Very Short Answer Questions
Q1. What is electricity?
Ans. Electricity is a form of energy that helps us operate electrical devices.
Q2. Name any four places where electricity is used.
Ans. Homes, schools, hospitals, and factories.
Q3. What is an electric circuit?
Ans. An electric circuit is a closed path through which electric current flows.
Q4.(A) What is a torchlight?
Ans. A torchlight is a portable device that produces light using electric cells.
(B). Name the main parts of a torchlight.
Ans. Electric cells, bulb, switch, reflector, connecting wires, and outer case.
Q5. What is an electric cell?
Ans. An electric cell is a source of electrical energy that supplies current to a circuit.
Q6. How many terminals does an electric cell have?
Ans. Two terminals—positive (+) and negative (–).
Q7. What happens when the switch of a torch is ON?
Ans. The circuit is completed, and the bulb glows.
Q8. What happens when the switch is OFF?
Ans. The circuit is broken, and the bulb does not glow.
Q9. What is a closed circuit and open circuit?
Ans. A closed circuit is a complete path through which electric current flows.
An open circuit is a broken path through which current cannot flow.
Q10. What is a battery?
Ans. A battery is a combination of two or more electric cells connected together.
Short Answer Questions
Q11. Explain the working of a torchlight.
Ans. A torchlight works when its switch is turned ON. The switch completes the circuit, allowing current from the electric cells to flow through the bulb. The bulb then glows and produces light.
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