WebClass 8 Science Lessons. Chapter 1 Crop Production and Management Class 8 CBSE Science Notes, Question Answers. Chapter 2 Microorganisms Class 8 Notes, Question Answers. Chapter 3 … WebThe tube and tyres are inflated which reduce friction. NCERT Solutions for Class 8 Science Chapter 12 – 3 Mark Questions and Answers. Question 1. Give examples to show that friction is both a friend and a foe. [NCERT] Answer: Friction is a friend in the following ways — it helps us to walk, to write on the blackboard and to apply the brakes ...

Force of Friction - Friction Class 8 Science - YouTube

WebOct 13, 2024 · 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 … WebJul 14, 2024 · The box will start moving and then the kinetic friction will act on the body. Question 8:A horizontal force of 50N is exerted on a box of 3Kg kept on the floor with the coefficient of static friction of 0.4 and a coefficient of kinetic friction is 0.2. Find the force of friction. Answer: Force of static friction is given by, disney mickey mouse bean bag chair

Force and pressure class 8 worksheets with answers pdf - Takshila …

WebImportant questions of Class 8 Science Chapter 11 Force and Pressure is given below. These important questions will help students while preparing for the. ... Answer: Friction is the force responsible for changing the … WebOct 3, 2024 · 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. WebAnswer: c) F = μN. Explanation: Frictional force is given by the formula F = μN. 4. The fluid friction in which the lubricant fluid separates two solid surfaces is known as _____. Skin … disney mickey mouse bookends michael graves