Contents
Introduction:
Welcome to Online Tutorial Classes! We are excited to present a valuable resource for CBSE students studying Class 6 Science. In this post, we will delve into the NCERT class 6 science chapter 9 ‘Electricity and Circuits’ from the CBSE curriculum and provide you with a comprehensive set of notes to help you master this important topic.
NCERT Science book:
Click here to access and download the NCERT class 6 science.
NCERT class 6 science Chapter 9 ‘Electricity and Circuits’ overview:
NCERT Class 6 Science Chapter 9 ‘Electricity and Circuits’ is an important chapter that introduces you to the basic concepts of electricity and circuits. The chapter is divided into five sections: Electric Cell, Electric Bulb, Electric Circuit, Switches, and Conductors and Insulators.
In the first section, you will learn about electric cells, which are devices that convert chemical energy into electrical energy. You will also learn about the different parts of an electric cell and how it works.
The second section explains how electric bulbs work. You will learn about the different parts of a bulb and how they work together to produce light.
The third section introduces you to electric circuits, which are paths that allow electricity to flow. You will learn about the different components of a circuit, including conductors, insulators, and switches.
The fourth section deals with switches, which are devices that can be used to turn a circuit on or off. You will learn about different types of switches and how they work.
The fifth section explains the difference between conductors and insulators. You will learn about different materials that can be used as conductors and insulators.
NCERT class 6 science Chapter 9 ‘Electricity and Circuits’ questions and answers:
Question 1:
Fill in the blanks :
(a) A device that is used to break an electric circuit is called _______________.
(b) An electric cell has _______________ terminals.
Answer:
(a) A device that is used to break an electric circuit is called switch.
(b) An electric cell has two terminals.
Question 2:
Mark ‘True’ or ‘False’ for following statements:
(a) Electric current can flow through metals.
(b) Instead of metal wires, a jute string can be used to make a circuit.
(c) Electric current can pass through a sheet of thermo Col.
Answer:
(a) Electric current can flow through metals. (True)
(b) Instead of metal wires, a jute string can be used to make a circuit. (False)
(c) Electric current can pass through a sheet of thermo Col. (False)
Question 3:
Explain why the bulb would not glow in the arrangement shown in Fig.
Answer:
The bulb would not glow in the arrangement because the handle of the screw driver is an insulator and hence the circuit is not complete.
Question 4:
Complete the drawing shown in Fig to indicate where the free ends of the two wires should be joined to make the bulb glow.
Answer:
To complete the circuit, one end of the wire should be connected to the free terminal of the battery and and the other to the free terminal of the bulb.
Question 5:
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
Solution:
- The purpose of an electric switch is to complete or break the circuit.
- Electrical gadgets that have switches built into them are fans, bulbs, ovens, television, refrigerators etc.
Question 6:
Would the bulb glow after completing the circuit shown in Fig. 12.14 if instead of a safety pin we use an eraser?
No, the bulb will not glow, since the eraser is an insulator.
Question 7:
Would the bulb glow in the circuit shown in Fig.
No, the bulb will not glow, since the circuit is not complete.
Question 8:
Using the “conduction tester” on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.
Answer:
Since the bulb glows, the object is a conductor. Bulb will glow only when the circuit is completed by a conducting material.
Question 9:
Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.
Answer:
- An electrician should use rubber gloves while repairing an electric switch at your home because rubber gloves are insulators and do not conduct electricity.
- This protects him against any electric shocks.
Question 10:
The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?
Answer:
The handles of the tools like screwdrivers and pliers used by electricians for repair work have plastic or rubber covers on them because plastic and rubber are insulators and electricity does not pass through them and hence protects him from any electric shocks.
Accessing All Chapters of the Book:
If you’d like to explore more chapters from the NCERT Class 6 Science book, you can easily access them on our website. We’ve organized all the chapters in one convenient location, making it effortless for you to navigate and study at your own pace. Simply click on the link below to access the page containing links to all the chapters of the book.
NCERT class 6 science questions and answers
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Accessing the Questions and Answers:
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