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# NCERT Solutions for Class 8 Science Chapter 12- Friction

NCERT Solutions for Class 8 Science Chapter 12-Friction are comprehensive and will help you score better in the CBSE exams. They cover all concepts of CBSE NCERT Class 8 Science Chapter 12 with requisite examples and illustrative diagrams. Some of the important concepts covered in this chapter include the force of friction, factors affecting friction, wheels reduce friction, fluid friction, increasing and reducing friction, types of friction, application of friction and disadvantages of frictional force.

Our smart and systematic NCERT Solutions are completely accurate and have been drafted by our expert science teachers. These solutions have been prepared on the basis of the updated CBSE Class 8 Science Syllabus and updated CBSE NCERT Class 8 Science Book. Chapter 12-Friction help you build a robust conceptual foundation. They help you gain an in-depth understanding of the chapter and enable you to become adequately thorough with the chapter. Our smart study tips and tricks help you learn faster.

Our subject matter experts make sure that these NCERT Solutions for Chapter – ‘Friction’ facilitate quick, efficient, effective, and easy learning. If you learn Chapter 12 – Friction from our NCERT Solutions for Class 8, you enjoy learning new concepts. Our Solution helps you clear all your doubts and questions instantly, no matter how big or small they are. They give you a good practice of various question types that can be asked in your CBSE Class 8 Science exams. No matter where you are in your learning journey, we help you unleash your full potential.

## NCERT Solutions for Class 8th Science Chapter 12 – Friction

In this chapter, you will learn about the friction and different factors that affect friction. Here in NCERT Solutions for Class 8 Science Chapter 12-Friction various important concepts related to friction have been covered.some of them are given below.

• Force of Friction

In this section of NCERT Class 8 Science Chapter 12 – Friction, you will be taught about the force of friction and how the external force opposes the relative motion. You will also be given details on how friction acts on the surface of contact with bodies. Here you will learn what exactly is relative motion and how it functions.

• Factors Affecting Friction

In this section of NCERT Solutions for Class 8th Science Chapter 12, you are provided with the detailed information of the different factors that impact friction and how the factors are affect friction. Friction can exist between two surfaces, for example, rubber and glass. In the later part of Class 8 Science Friction, you will also read about the nature of the surface in contact, how to calculate frictional force using a spring balance, polishing surfaces in contact to change friction, normal reaction force

• Types of Friction

This part of the chapter elaborates about different types of friction, such as static friction and kinetic friction. It teaches you that the kind of friction that occurs while objects are moving or in motion is termed as kinetic friction. On the other hand, the kind of friction that takes place between a body at rest and a surface in contact is termed as static friction. Examples of kinetic friction include sliding friction and rolling friction.

• Friction: A Necessary Evil

In this branch of CBSE NCERT Class 8 Science book, you will learn the disadvantages of friction force. You shall also see how mankind cannot live without friction in day to day life. You will be explained about life without frictional force with related examples to give you a clear idea of the importance of friction in our lives. Some examples of various applications of friction include friction between the road and the wheel, pedalling a cycle

• Increasing and Reducing Friction

In this segment of CBSE NCERT Class 8 Science Chapter 12, you will read about how the friction increases when there is no support and how friction decreases when there is support. You will also learn why friction produces heat and various applications of friction. Some examples of the application of friction in our NCERT Solutions for Class 8 Science Chapter 12-Friction are walking, writing and matchstick usage.

• Wheels Reduce Friction

In this section of CBSE NCERT Class 8 Science Chapter 12, you will be taught on how wheels reduce friction on various objects. Here, we are learning more on rolling and using treads to change friction. This section also covers the concept of rolling friction. It teaches you that rolling friction has less friction when compared to sliding friction.

• Fluid Friction

In NCERT CBSE Class 8 Science Chapter 12, you will learn about the fluid friction and how to drag force on an object depending on the speed. You shall see more details on the body and nature of the fluid and why drag force is affected. You will learn these concepts with relevant examples like buoyancy, drag, thrust and weight.

## NCERT CBSE Class 8 Science Chapter 12-Friction Exercise

In NCERT CBSE Class 8 Science Chapter 12, we have one exercise with 10 questions in it.

• Question 1 is fill in the blanks question. It covers quite a number of topics in the chapter.
• Question 2 and question 3 are application-based questions. Here, you will be given four statements from which you have to pick up one correct statement.
• Question 4 is also an application based question. In this question, you will be provided with a scenario, and you have to explain your answer with the help of a diagram.
• Question 5 is a short answer question. It is also a scenario-based question.
• Question 6 is a short answer, which covers the topic force of friction.
• Question 7 is a scenario-based question, where you are given a situation and through this, you have to brief about the force which is used here.
• Question 8 covers the topic of static friction and sliding friction. It is a direct question.
• Question 9 is also a direct question from the topic friction: a necessary evil.
• Question 10 is from the topic of fluid friction, and this is a short-answer question and a direct question.
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