Physics Practice Tests – Friction (Questions with Answers and Explanations)

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Physics Practice Tests – Friction (Questions with Answers and Explanations)

Hello and Welcome to Physics Practice Test – Friction

  1. You are to attempt 5 random objectives questions ONLY.
  2. Supply Your Full Name and Location in the text box below and begin immediately.
  3. You can attempt as many times as possible
1. 



The diagram above illustrates a body of mass 50 kg being pulled by a horizontal force F. If the body accelerates at 2.0 ms-2 and experiences a frictional force of 5 N, calculate the coefficient of kinetic friction. [g = 10 ms-2] (WASSCE 2014)

A. 0.1   B. 0.2   C. 0.3   D. 0.4

2. 



The acceleration of the system shown above is ______ (JAMB 1995)

A. 2 ms-2     B. 4 ms-2     C. 6 ms-2     D. 8 ms-2

3. 


A block of wood of weight 5 N is pulled by a spring balance which indicates a horizontal force of 3 N just before it moved. Calculate the coefficient of static friction. (NECO 2023)

A. 1.67      B. 0.6      C. 0.4      D. 0.3

4. 


If an object just begins to slide a surface inclined at 30° to the horizontal, the coefficient of friction is _____ (JAMB 2003)

A.      B.      C.       D .

5. 



A block at rest on a horizontal surface is pulled by a horizontal force F as shown in the figure above. Which of the following statements are correct?

The force of friction ______

I. is directed to the right
II. is directed to the left
III. increases as F increases until the block starts to move
IV. increases if a second identical block is placed on top of the block

A. I and III only
B. II and IV only
C. II and III only
D. II, III and IV only

 

 

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