MCQ practice · SSC Physics Board questions · Chapter 2: Motion
The rate of increase of the velocity of a freely falling object is called-
Think it through first, then pick an option.
- a work
- b speed
- c acceleration
- d acceleration due to gravity
Answer and explanation
Correct answer: d acceleration due to gravity
The velocity of a freely falling object rises by 9.8 m/s every second. This fixed rate is called the acceleration due to gravity, g.
Why the other options are wrong
- a work: Work is not a rate of increase of velocity; it is a quantity connected with force and displacement.
- b speed: Speed is the rate of change of distance, not the rate of increase of velocity.
- c acceleration: The rate of increase of velocity is called acceleration in general, but for a freely falling object it has its own special name.
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