Extra Questions for Class 8 Science Chapter 12 Friction Gurukul of Excellence
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.
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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.
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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:
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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
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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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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
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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.
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The NCERT Exemplar for Class 8 Science Chapter 12 covers questions such as Friction Class 8 MCQs, Friction quiz with answers, Friction Class 8 extra questions, Friction Class 8 worksheets, Friction Class 8 CBSE important questions, numerical problems and practice questions. Students must understand these concepts and work on them on a regular.
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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
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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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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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In the pursuit of a comprehensive understanding of CBSE Class 8 Science Chapter 12 "Friction," practicing extra questions emerges as a valuable strategy. Students are suggested to go through each and every question for better concept coverage. Very Short Answer Type Questions Q.1 What is force of friction? Ans.
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(a) Magnetic force (b) Muscular force (c) Frictional force (d) Electrostatic force 3 . Force of friction is dependent on____ (a) roughness of surface (b) smoothness of surface (c) inclination of surface (d) all of these Important Questions For Class 8 Science Chapter 12 Friction are given here.
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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.
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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.