Physics Force & Motion BUMHS 2022
PMDC Verified Question 77 of 137
The third law of motion explains:
A
The effect of force
B
The existence of force
C
The existence of two forces
D
The existence of a pair of forces in nature
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: The existence of a pair of forces in nature
Concept:

Newton's Third Law states: To every action, there is always an equal and opposite reaction.

Solution:

  • The profound implication of this law is that a solitary, isolated force physically cannot exist in the universe.


  • Forces result entirely from interactions between two separate objects.


  • Therefore, forces ALWAYS occur in action-reaction pairs. The third law fundamentally declares the existence of this dual-pairing nature of forces.


Why other options are incorrect:

The effect of force is explained by the Second Law (\( F=ma \)). The existence of a single force conceptually traces back to the First Law. "Two forces" is vague, while "pair of forces" explicitly covers the action-reaction mutual relationship.

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.

Previous Question All Force & Motion MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App