2024 Force of friction depends on mcq

Force of friction depends on mcq

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August undefined, 2024

Web15 Questions Show answers. Question 1. 120 seconds. Q. A 220 Kg crate is pushed horizontally with a force of 700 N. If the coefficient of kinetic friction is 0.20, calculate the acceleration of the crate. answer choices. 1.02 m/s 2. WebFeb 9, 2024 · The rate of change of momentum is equal to the force applied. b. For every reaction, there is an opposite reaction. c. The body tends to be rotated if the force is applied tangentially. d. The body is rest until a force is applied. Ans8. (b) For every reaction, there is an opposite reaction.

What is friction? (article) Khan Academy

WebApr 2, 2024 · Now the friction between two bodies depends on the force with which they slide over one another. The mass of a body decides the gravitational force that one object applies on the other object. Therefore, greater the mass of the object, more is the friction due to weight of the object. WebThe force of friction is a force that resists motion when two objects are in contact. If you look at the surfaces of all objects, there are tiny bumps and ridges. Those microscopic peaks and valleys catch on to one another … tapping equiyty of investment propert

Why is the maximum friction (f=mu *Normal force

WebBlock A is kept on top of block B; the coefficient of static friction between A and B is 0.6 and between B and ground is 0.5. Also, the coefficient of kinetic friction between A and B is … WebStatic friction is the force holding an object in place on an incline, such as the cheese in Figure 1. The friction force points against the direction that the object would slide … WebCh 12 Science Class 8 MCQ Question 12. A toy car released with the same initial speed will travel farthest on. (a) muddy surface. (b) polished marble surface. (c) cemented surface. … tapping electrical wire

Class 8 Science MCQ Questions of Friction with Answers

Force Of Friction Multiple Choice Questions (MCQ’s)

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 … WebQuestion: Which of the following statements about friction is true? a) Kinetic friction is always greater than rolling friction. b) Frictional force is proportional to the area of … tapping electricityWebCorrect options are B) and C) The magnitude of the frictional force depends on the weight of the object and roughness of the surface in contact. If the roughness is increased, the … tapping electrical connections

"WebAug 23, 2024 · Answer: 1. Answer: (b) contact force Explanation: Friction is a contact force because the bodies need to get in contact with each other in order for the frictional force to act on the bodies. 2. Answer: (b) Rolling friction Explanation: Rolling friction produces the least friction. 3. Answer: (a) opposes the motion Explanation: Frictional force acts … " - Force of friction depends on mcq

Force of friction depends on mcq

Friction - Mechanical Engineering (MCQ) questions and answers

WebSep 5, 2024 · Answer: (a) Nature of surfaces in contact. weight of the object. the force of adhesion and deformati0n. (b) Shlain’s suggestion of keeping iron bar below the box will help the labour store Putting the iron bar below the box will make it to roll over the bar. As rolling friction is less than building. Webreduce the force acting between the 2 surfaces. reduce the roughness of the 2 surfaces coming in contact. use wax, grease or oil. all of the above are ways of reducing friction. Question 19. 30 seconds. Q. The amount of friction depends on the weight of the objects pressing together. answer choices.

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WebApr 21, 2024 · The friction force is then μW cos θ. The friction force always depends on the magnitude of the force normal to the surface because that is the force that actually … Webreduce the force acting between the 2 surfaces. reduce the roughness of the 2 surfaces coming in contact. use wax, grease or oil. all of the above are ways of reducing friction. …

WebMay 22, 2024 · MCQ worksheet – Friction or frictional force 1) Friction occurs because a. all surfaces have some roughness. b. surfaces in contact generate heat. c. chemical reactions take place when surfaces touch. d. none of the above 2 ) Which factors affect friction? a. roughness of the surfaces b. area of the surfaces WebFriction is a force that is dependent on external factors. Following are the two factors on which friction depends: 1. On the nature of the two surfaces that are in contact Friction is dependent on the smoothness or roughness of the two surfaces that are in …

WebThe force of static friction F s F_s F s F, start subscript, s, end subscript is a force between two surfaces that prevents those surfaces from sliding or slipping across each other. This is the same force that allows you to … WebJan 25, 2024 · The frictional force of an object depends upon various factors which are written as follows- The speed of the object with respect to the fluid The shape of the object The nature of fluid Let us discuss them one by one- 1. The speed of the object with respect to fluid The more the speed of object, the more the friction.

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Web1 Answer. Friction depends upon the nature of the surfaces in contact with each other and at the state of motion of the object on the surface. The irregularities on the surface lead to friction. Friction depends upon the surface of both the bodies in contact and not only one. The weight of the object, if the weight of the object is high then ... tapping emotional freedomWebA 5 kg box is at rest on the floor. The coefficient of static friction between the box and the floor is 0.4. A horizontal force of 50 N is applied to the box. Will it move? No, because … tapping exercise videoWebFree download in PDF Friction Multiple Choice Questions(mcqs) & Answers for competitive exams. ... 13 The force of friction depends … tapping exercises for anxiety youtube reeseWebMay 22, 2024 · 6 ) The moon orbits Earth rather than the sun because. a. the sun’s gravity is weaker than Earth’s. b. the moon is smaller than Earth. c. Earth already orbits the sun. d. … tapping exerciceWebMar 3, 2024 · (c) Friction is a force that only occurs on rough surfaces (d) Friction is a force that occurs only between solids Answer Question 4. Talcum powder should not be spilled on the floor of room because: (a) it will stain the floor (b) it may cause us to slip and fall (c) it is messy (d) none of these Answer Question 5. tapping exercises pdfWebHere, we are discussing 12 more MCQs of Fluid Dynamics in Physics. 1. What does fluid means? ... Cohesive force (d) Viscosity (e) None of these. Answer: (d) 5. The formula of friction force F in a liquid was first suggested by ... 10. Drage force between layers under consideration depends (a) The surface area of the layer (b) The distance ... tapping explainedWebOct 3, 2024 · Force and Pressure Class 8 MCQs Questions with Answers Choose the correct option. Question 1. The pressure which is exerted by air around us is known as (a) force (b) atmospheric pressure (c) muscular … tapping exercise for anxiety