Physics Force & Motion PMDC 2021
PMDC Verified Question 100 of 137
An object is accelerating ____
A
Only when its speed changes
B
Only when its direction changes
C
When its speed or direction changes
D
If its velocity is large
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: When its speed or direction changes
Concept:

Velocity is a vector.

Solution:

  • Any change to magnitude or direction is acceleration.


Why other options are incorrect:

"Only" limits the definition.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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