Question 1. What is the force of friction? Answer: The force acting on a moving object equal and opposite to the direction of motion is called force of friction. Question 2. What is the cause of friction? Answer: The irregularities on the two surfaces in contact is the cause of friction. Question 3. Here is the list of Extra Questions for Class 8 Science with Answers based on latest NCERT syllabus prescribed by CBSE. Chapter 1 Crop Production and Management Class 8 Extra Questions Chapter 2 Microorganisms: Friend and Foe Class 8 Extra Questions Chapter 3 Synthetic Fibres and Plastics Class 8 Extra Questions
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Friction Class 8 Science Chapter 12 Extra Questions and Answers are provided here. We prepared these extra questions based on the latest NCERT Class 8 Science Book. CBSE Class 8 Science Chapter 12 Friction Extra Questions will help you to properly understand a particular concept of the chapter. Class 8 Science Chapter 12 Friction Extra Questions Exercise Questions 1. Fill in the blanks. (a) Friction opposes the _____________ between the surfaces in contact with each other. (b) Friction depends on the _____________ of surfaces. (c) Friction produces __________. (d) Sprinkling of powder on the carrom board ________ friction. (e) Sliding friction is ___________ than the static friction. Soln: Class 8 Science Chapter 12 extra questions and important questions discuss the topic of friction and various factors affecting it. These questions are designed by subject experts at Vedantu as per the guidelines of CBSE. Question 1. Friction is a (a) non-contact force (b) contact force (c) magnetic force (d) electrostatic force Answer Question 2. Which of the following produces least friction? (a) Sliding friction (b) Rolling friction (c) Composite friction (d) Static friction Answer Question 3. Friction always (a) opposes the motion (b) helps the motion
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Solution: (a) relative motion (b) smoothness (or irregularities or nature) (c) heat (d) reduces (e) less Question 2. Four children were asked to arrange forces due to rolling, static and sliding frictions in decreasing order. Their arrangements are given below. Choose the correct arrangement. (a) rolling, static, sliding Answer. Question 6. Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play. (a) only if the objects are solid. (b) only if one of the two objects is liquid. (c) only if one of the two objects is gaseous. (d) irrespective of whether the objects are solid, liquid or gaseous. Class 8 Science Chapter 12 Extra Questions and Answers - Friction. Here in this Page Class VIII Students can Learn Extra Questions & Answer 12th Chapter Science fully Inside. We Provided Here Friction Science Chapter 12 Long Answer Type Question, Very Short Type Questions (VSA) / MCQ Type Questions, Short Type Questions (SA).. Important questions of Class 8 Science Chapter 12 Friction is given below. These important questions will help students while preparing for the exam. Practising these important questions will analyse their performance and work on their weak points. Score well in exam of Class 8 Science by going through these important questions.
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Chapter 12 Friction NCERT Solutions for Class 8 Science - Notes. • Friction is a force that opposes the relative motion between two surfaces of objects in contact. The force of friction always acts in a direction opposite to that of the applied force. • Friction is caused by the irregularities on the two surfaces in contact. There are 18 chapters included in the Class 8 Science syllabus that covers vivid topics related to pollution, astronomy, light, natural phenomena, sound, force, friction, etc. These chapters need the highest attention from the students to complete preparing the syllabus.
Question 1. What is the force of friction? Answer: The force acting on a moving object equal and opposite to the direction of motion is called force of friction. Question 2. What is the cause of friction? Answer: The irregularities on the two surfaces in contact is the cause of friction. Question 3. Friction Class 8 Extra Questions Short Answer Type 2. Question 1. Give any two methods each to increase and decrease friction. Answer: Methods to increase the friction: (a) By making the surfaces rough. (b) By removing the lubrication between the two surfaces. (c) By changing the rolling friction to sliding friction.
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Chapter 12 - Friction Chapter 13 - Sound Chapter 14 - Chemical Effect of Electric Current Chapter 15 - Some Natural Phenomena Chapter 16 - Light Chapter 17 - Stars And Solar System Chapter 18 - Pollution of Air and water Importance of Extra Questions for 8 Science If you have any query regarding CBSE Class 8 Science Important Extra Questions and Answers, drop a comment below and we will get back to you at the earliest. Filed Under: CBSE Class 8. RS Aggarwal Solutions. RD Sharma Solutions. RS Aggarwal Class 10. RD Sharma Class 10. RS Aggarwal Class 9. RD Sharma Class 9. RS Aggarwal Class 8.
