CBSE Class 7 Science Electricity: Circuits and Their Components (Class 7 NCERT New) Quiz 4

1. Which change alone will certainly stop current from flowing in a working circuit?

A Moving the switch to OFF B Shortening the connecting wires C Replacing one copper wire with another D Moving the battery to another position in the circuit

2. Which statement correctly compares conductors and insulators?

A Both allow current to pass easily B Conductors allow current to pass, while insulators do not C Insulators allow more current than conductors D Conductors and insulators have the same function in a circuit

3. A student builds a tester and checks four objects. The lamp glows for a coin and a metal key but not for a wooden stick or plastic ruler. Which conclusion best matches the textbook?

A Only shiny objects conduct electricity B Metals are conductors, while materials like wood and plastic act as insulators C Plastic becomes a conductor only in a tester D Wood conducts better than metal

4. What is a current?

A A constant flow of electricity B A path that a current can flow along

5. What is a circuit?

A A constant flow of electricity B A path that a current can flow along

6. Gives a constant supply of electrons.

A Power source B Load C Energy Pathway

7. A device that uses electricity.

A Load B Battery Source C Energy pathway

8. What are the 3 basic components of a circuit?

A Energy source, Load, Energy Pathway B Battery, Energy source, Energy Pathway C Battery, Wire, Energy Pathway D ALL of them

9. A wire is an example of _____.

A Battery source B Energy pathway C Load D All of them

10. Which unit is current measured in?

A Volts B Amps C Coulombs D Ohms