Physics MCQs with Answers

This is Physics MCQs section with detailed explanations for preparation of screening tests, interviews for government jobs. In this section candidate will learn MCQs on variety of topics from the subject.

1. 41 When velocity time graph is a straight line parallel to time axis then__________________
   

   1. acceleration is const

   2. acceleration is variable

   3. acceleration is zero

   4. velocity is zero

   See Answer

   Added By: Ak Aamir

   Answer

   : acceleration is zero

   Explanation

   :
   N/A

2. 42 Slope of velocity time graph is_____________________
   

   1. acceleration

   2. distance

   3. force

   4. momentum

   See Answer

   Added By: Ak Aamir

   Answer

   : acceleration

   Explanation

   :
   N/A

3. 43 Which law of motion is also called law of inertia
   

   1. 1st law

   2. 2nd law

   3. 3rd law

   4. all 1st, 2nd and 3rd laws

   See Answer

   Added By: Ak Aamir

   Answer

   : 1st law

   Explanation

   :
   N/A

4. 44 Newtons laws do not hold good for particles_______________
   

   1. at rest

   2. moving slowly

   3. move with high velocity

   4. move with velocity comparable to velocity of light

   See Answer

   Added By: Ak Aamir

   Answer

   : move with velocity comparable to velocity of light

   Explanation

   :
   N/A

5. 45 2nd law of motion gives the definition of________________
   

   1. force

   2. acceleration

   3. velocity

   4. both force and acceleration

   See Answer

   Added By: Ak Aamir

   Answer

   : acceleration

   Explanation

   :
   N/A

6. 46 Momentum depends upon__________________
   

   1. force acts on the body

   2. mass of the body

   3. velocity of the body

   4. both mass and velocity of the body

   See Answer

   Added By: Ak Aamir

   Answer

   : both mass and velocity of the body

   Explanation

   :
   N/A

7. 47 When a body moves in a straight line then its displacement coincides with__________________
   

   1. distance

   2. force

   3. acceleration is zero

   4. both A and B

   See Answer

   Added By: Ak Aamir

   Answer

   : distance

   Explanation

   :
   N/A

8. 48 Motorcycle safety helmet extends the time of collision hence decreasing the________________
   

   1. chance of collision

   2. force acting

   3. velocity

   4. impulse

   See Answer

   Added By: Ak Aamir

   Answer

   : impulse

   Explanation

   :
   N/A

9. 49 During long jump, athlete runs before taking the jump. By doing so he__________________
   

   1. provide him a larger inertia

   2. decreases his inertia

   3. decreases his momentum

   4. increases his momentum

   See Answer

   Added By: Ak Aamir

   Answer

   : increases his momentum

   Explanation

   :
   N/A

10. 50 A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10
    

    1. 14 m

    2. 20 m

    3. 5 m

    4. 25 m

    See Answer

    Added By: Ak Aamir

    Answer

    : 14 m

    Explanation

    :
    N/A