Potential energy per unit volume is given by · Work & Energy MDCAT Past Paper MCQ

Physics Work & Energy MDCAT 2016

PMDC Verified Question 98 of 108

Potential energy per unit volume is given by

$ mgh $

$ gh $

$ \frac{mgh}{\rho} $

$ \rho gh $

Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:

Option D: $ \rho gh $

Concept:

Density ($ \rho $) is defined as mass per unit volume ($ m/V $). We can substitute this into the standard potential energy formula.

Formula:

$$ \frac{P.E}{V} = \frac{mgh}{V} $$

Solution:

Gravitational Potential Energy = $ mgh $

Divide by Volume ($ V $): $ \frac{mgh}{V} $

Since mass/volume ($ \frac{m}{V} $) is density ($ \rho $), the expression becomes $ \rho gh $.

Why other options are incorrect:

Option A is total potential energy. Option B is potential energy per unit mass. Option C wrongly divides by density instead of multiplying.

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 Work & Energy 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