Electricity and Circuits Class 6 Worksheet Science Chapter 9

Q1. Fill in the blanks:

i.                  do not allow current to pass through them.
ii. Air is an               .
iii. Our body is a             conductor of electricity.
iv. The metal cap is the                      terminal of the electric cell.

Q2. True/False:

i. Impure water can also conduct electricity.
ii. An electric cell produces electricity from the chemicals stored inside it.
iii. The metal disc is the positive terminal.
iv. Brass is a conductor.
v. Insulators allow current to pass through them.

Q3. Which device is used to open or close an electric circuit?

Q4. Who invented the first electric bulb?

Q5. Who invented the first electric cell?

Q6. Which is the +ve terminal of a cell?

Q7. Which is the –ve terminal of a cell?

Q8. Who invented dry cell?

Q9. Define an electric switch.

Q10. Where does the torch get electricity from?

Q11. Where does electricity come from?

Q12. How does an electric cell produce electricity?

Q13. Name the type of circuit in which switch is in ‘OFF’ position.

Q14. Can distilled water conduct electricity?

Q15. Name the type of circuit in which switch is in ‘ON’ position.

Q16. Can tap water or rain water conduct electricity?

Q17. What is a thin wire fixed in the middle of the glass bulb called?

Q18. What is a filament in a light bulb?

Q19. Write two examples of conductor and insulators.

Q20. What is heating effect of current?

Assertion and Reason Questions

Q21. Assertion (A): Insulators do not allow the current to flow through themselves.
Reason (R): They have no free charge carriers.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q22. Assertion (A): In a closed electric circuit the current passes from one terminal of the electric cell to the other terminal.
Reason (R): Generally, the metal disc of a cell acts as positive terminal.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q23. Assertion (A): A domestic electric appliance working on a three pin, will continue working even if the top pin is removed.
Reason (R): The third pin is used only for safety purpose.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q24. Assertion (A): Silver is not used to make electric wires.
Reason (R): Silver is a bad conductor.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q25. Assertion (A): Air is an insulator.
Reason (R): Those materials that do not allow electric current to pass through them are called insulators.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q26. Assertion (A): Copper is used to make electric wires.
Reason (R): Copper is a poor conductor of electricity.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

You can access the solutions to this worksheet here.