Limiting Friction Problems In Physics -Multiple Choice Questions Quiz

Interactive MCQs on “Limiting Friction Problems In Physics”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is limiting friction?

(a) The maximum frictional force that can be exerted between two surfaces
(b) The minimum frictional force that can be exerted between two surfaces
(c) The average frictional force between two surfaces
(d) The frictional force between two surfaces at rest

Question 2: What factors affect the magnitude of limiting friction?

(a) Surface area of the objects
(b) Speed of the objects
(c) Weight of the objects
(d) Nature of the surfaces and the normal force between them

Question 3: The coefficient of limiting friction is represented by:

(a) μ
(b) α
(c) β
(d) θ

Question 4: What happens if the applied force on an object is less than the limiting friction?

(a) The object moves with constant velocity
(b) The object accelerates in the direction of the applied force
(c) The object remains at rest
(d) The object moves with decreasing velocity

Question 5: Which of the following statements is true about limiting friction?

(a) It is always greater than kinetic friction
(b) It depends on the speed of the objects
(c) It remains constant regardless of the nature of the surfaces
(d) It acts in the same direction as the applied force

Question 6: A block of mass 5 kg is on a rough horizontal surface. If the coefficient of limiting friction is 0.4, what is the maximum force that can be applied to the block horizontally before it starts to move?

(a) 10 N
(b) 20 N
(c) 25 N
(d) 50 N

Question 7: Which of the following is a practical application of limiting friction?

(a) Reducing energy loss in mechanical systems
(b) Increasing the speed of vehicles on roads
(c) Reducing the wear and tear of surfaces in contact
(d) Eliminating the need for lubricants in machines

Question 8: How does the coefficient of limiting friction affect the magnitude of limiting frictional force?

(a) It has no effect on the limiting frictional force
(b) Higher coefficient results in higher limiting frictional force
(c) Lower coefficient results in higher limiting frictional force
(d) It changes the direction of limiting frictional force

Question 9: Which of the following statements is true regarding the direction of limiting frictional force?

(a) It always acts in the direction of motion
(b) It always acts in the direction opposite to motion
(c) It can act in any direction relative to motion
(d) It does not exist unless there is motion

Question 10: What is the force required to keep an object moving at a constant velocity on a rough surface with limiting friction?

(a) Zero force
(b) Equal to the applied force
(c) Less than the limiting frictional force
(d) Equal to the limiting frictional force