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12. Friction Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
12. Friction Additional Questions With Solutions – Complete NCERT Book Solutions for Class 8 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 12. Friction Additional Questions With Solutions to help you master concepts and score higher.
12. Friction Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 8 Science play an important role in helping students understand the concepts of the chapter 12. Friction clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 8 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 12. Friction is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 8 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
12. Friction
Additional Questions With Solutions
Additional - Question:
Que: What is the force of friction?
Ans: The force acting on a moving object equal and opposite to the direction of motion is called force of friction.
Que: What is the cause of friction?
Ans: The irregularities on the two surfaces in contact is the cause of friction.
Que: What is the force responsible for wearing out of bicycles tyres?
Ans: Frictional force.
Que: Why are wheels of vehicles made circular?
Ans: Rolling friction is less than sliding friction.
Que: What is the direction of force of friction acting on a moving object?
Ans: Opposite to the direction of moving objects.
Que: Why do pieces of luggage fitted with rollers?
Ans: To reduce friction and to pull them easily.
Que: Why does a matchstick catch fire when rubbed on the rough surface of the box?
Ans: Due to friction between the stick and rough surface a matchstick catches fire.
Que: What is the name of special shape given to objects moving in fluids?
Ans: Streamlined.
Que: Which surface does produce more friction—smooth or rough surface?
Ans: Rough surface
Que: Why is fine powder sprinkled on the carrom board?
Ans: In order to reduce friction powder is sprinkled on carrom board.
Que: Why is it difficult to walk on the wet marble floor?
Ans: The wet marble floor has less friction. So it is difficult to move on it.
Que: Why does the jar of a mixer become hot when it is run for few minutes?
Ans: It becomes hot due to friction.
Que: Name the types of friction.
Ans:
- Static friction
- Sliding friction
- Rolling friction
- Fluid friction
Que: Which force helps us to write on the paper or blackboard?
Ans: Frictional force
Que: What is drag?
Ans: The frictional force exerted by fluids is called drag.
See other sub-topics of this chapter:
1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions