Mechanics Test

5 Questions | Total Attempts: 118

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Mechanics Test

Take this Quiz to test how thorough you are with the concepts of Mechanics! All the Best!


Questions and Answers
  • 1. 
    Using a stop-watch, Tom measured the time for a motor car to pass through 2 streetlights. The reading was 1.2 s. If the reaction time of Tom is 0.2 s, what is the maximum possible percentage error of his measurement?
    • A. 

      8.33%

    • B. 

      16.7%

    • C. 

      33.3%

    • D. 

      66.7%

  • 2. 
    A boy throws a ball vertically upwards as shown.  What is the displacement of the ball when it returns to its starting point? 
    • A. 

      0 m

    • B. 

      5 m

    • C. 

      5 m upwards then 5 m downwards

    • D. 

      10 m

  • 3. 
    In the following figure, a ball runs on a smooth rail from P to Q. Which of the following graphs best represents the variation of the distance d travelled by the ball with time t?
    • A. 

      Graph A

    • B. 

      Graph B

    • C. 

      Graph C

    • D. 

      Graph D

  • 4. 
    Balls A and B are thrown vertically upwards and downwards respectively. If their initial speeds are the same, which of the following statements is/are correct when they meet? (1)  Their displacements should be the same. (2)  Their speeds should be the same. (3)  Their accelerations should be the same.
    • A. 

      (1) only

    • B. 

      (3) only

    • C. 

      (1) and (2) only

    • D. 

      (1) and (3) only

  • 5. 
    The following graph shows that quantity X is directly proportional to time t. Which of the following can be the quantity X? (1)  Velocity of a freely falling object with negligible air resistance. (2)  Displacement of an object moving at constant velocity. (3)  Distance travelled by an object moving with constant acceleration.
    • A. 

      (1) and (2) only

    • B. 

      (1) and (3) only

    • C. 

      (2) and (3) only

    • D. 

      (1), (2) and (3)