Kinetic Friction-Multiple Choice Questions Quiz

Interactive MCQs on the topic “Kinetic friction”:

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 kinetic friction?

(a) Friction experienced by an object at rest
(b) Friction experienced by an object in motion
(c) Friction experienced by an object moving in a circular path
(d) Friction experienced by an object on an incline

Question 2: Which of the following factors affect the magnitude of kinetic friction?

(a) Mass of the object
(b) Surface area of the object
(c) Speed of the object
(d) Type of surface in contact with the object

Question 3: What is the direction of kinetic frictional force acting on a moving object?

(a) In the same direction as the object's motion
(b) In the opposite direction to the object's motion
(c) Perpendicular to the object's motion
(d) It depends on the angle of the surface

Question 4: What is the formula for calculating the magnitude of kinetic friction?

(a) Ff = μsN
(b) Ff = μkN
(c) Ff = mg
(d) Ff = ma

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

(a) Kinetic friction is greater than static friction.
(b) Kinetic friction is less than static friction.
(c) Kinetic friction is independent of the weight of the object.
(d) Kinetic friction only occurs between two solid surfaces in contact.

Question 6: What is the unit of the coefficient of kinetic friction?

(a) Newtons
(b) Meters per second
(c) Joules
(d) No unit

Question 7: Which of the following factors can increase the coefficient of kinetic friction between two surfaces in contact?

(a) Decreasing the speed of the object
(b) Increasing the area of the surfaces in contact
(c) Increasing the temperature of the surfaces
(d) Decreasing the roughness of the surfaces

Question 8: Which of the following statements is true about the direction of the normal force acting between two surfaces in contact?

(a) It always acts perpendicular to the surfaces in contact
(b) It always acts in the direction of motion of the object
(c) It always acts opposite to the direction of motion of the object
(d) It always acts parallel to the surfaces in contact

Question 9: What is the minimum force required to keep an object in motion at a constant velocity on a level surface?

(a) The weight of the object
(b) The force of kinetic friction acting on the object
(c) The force of static friction acting on the object
(d) The net force acting on the object

Question 10: Which of the following factors can increase the magnitude of kinetic friction between two surfaces in contact?

(a) Decreasing the speed of the object
(b) Decreasing the surface area of the object
(c) Decreasing the temperature of the surfaces
(d) Increasing the weight of the object


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