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Motion — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceMotion1 Mark
MCQ
Uniform circular motion is called continuously accelerated motion mainly because its:
  • A
    Direction of motion changes
  • B
    Speed remains the same
  • C
    Velocity remains the same
  • D
    Direction of motion does not change
✓

Answer

  1. Direction of motion changes

Explanation:

An accelerating body is an object that is changing its velocity.

And since velocity is a vector that has both magnitude and direction, a change in either the magnitude or the direction constitutes a change in the velocity.

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