Worksheet Solutions: Electricity & Circuits

# Electricity and Circuits Class 6 Worksheet Science Chapter 9

Q1. Fill in the blanks:

i.                  do not allow current to pass through them.

Ans. Insulators

ii. Air is an               .

Ans. insulator

iii. Our body is a             conductor of electricity.

Ans. good

iv. The metal cap is the                      terminal of the electric cell.

Ans. positive

#### Q2. True/False:

i. Impure water can also conduct electricity.

Ans. True

ii. An electric cell produces electricity from the chemicals stored inside it.

Ans. True

iii. The metal disc is the positive terminal.

Ans.  False

iv. Brass is a conductor.

Ans.  True

v. Insulators allow current to pass through them.

Ans. False

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

Ans. Electric switch

Q4. Who invented the first electric bulb?

Ans. Thomas Alva Edison invented the first electric bulb.

Q5. Who invented the first electric cell?

Ans. Alessandro Volta invented the first electric cell.

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

Ans. The metal cap is the positive terminal of the electric cell.

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

Ans. The metal disc is the negative terminal of the electric cell.

Q8. Who invented dry cell?

Ans. French chemist Georges Leclanche invented dry cell.

Q9. Define an electric switch.

Ans. A switch is a simple device that either breaks the circuit or completes it.

Q10. Where does the torch get electricity from?

Ans. Electricity to the bulb in a torch is provided by the electric cell.

Q11. Where does electricity come from?

Ans. A power station provides us with electricity.

Q12. How does an electric cell produce electricity?

Ans. An electric cell converts chemical energy into electricity.

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

Ans. Open circuit

Q14. Can distilled water conduct electricity?

Ans. No, distilled or pure water does not conduct electricity.

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

Ans. Closed circuit or complete circuit

Q16. Can tap water or rain water conduct electricity?

Ans. Yes, tap water or rain water can conduct electricity.

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

Ans. A thin wire fixed in the middle of the glass bulb is called a filament.

Q18. What is a filament in a light bulb?

Ans. The thin wire that gives off light is called the filament of the bulb.

Q19. Write two examples of conductor and insulators.

Ans. Conductor – Copper and Aluminium

Insulators – Plastic and Rubber

Q20. What is heating effect of current?

Ans. Heating caused due to conversion of electrical energy into heat energy is called 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.
Ans.
(a)

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.
Ans
. (c)

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.
Ans. (a)

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.
Ans.
(c)

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.
Ans. (a)

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.
Ans. (c)

The document Electricity and Circuits Class 6 Worksheet Science Chapter 9 is a part of the Class 6 Course Science Class 6.
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## FAQs on Electricity and Circuits Class 6 Worksheet Science Chapter 9

 1. What are the different components of an electrical circuit?
Ans. An electrical circuit typically consists of a power source (such as a battery), wires for conducting the electricity, and components like resistors, capacitors, and switches that control the flow of electricity.
 2. How does electricity flow in a circuit?
Ans. Electricity flows from the positive terminal of the power source, through the components in the circuit, and back to the negative terminal in a continuous loop.
 3. What is the difference between series and parallel circuits?
Ans. In a series circuit, the components are connected in a single path, so if one component fails, the entire circuit is broken. In a parallel circuit, the components have their own separate paths, so if one component fails, the others can still function.
 4. How do you calculate the voltage, current, and resistance in a circuit?
Ans. Voltage (V) is calculated using Ohm's Law (V = I x R), where I is the current in the circuit and R is the resistance. Current (I) is the rate of flow of electric charge, measured in amperes. Resistance (R) is the opposition to the flow of electric current, measured in ohms.
 5. What safety precautions should be taken when working with electricity and circuits?
Ans. Safety precautions include turning off the power source before working on a circuit, using insulated tools, wearing protective gear like gloves and goggles, and avoiding contact with water when working with electricity.

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