Physics Work & Energy ETEA 2010
PMDC Verified Question 104 of 108
The gravitational potential energy per unit mass is called:
A
Gravitational potential
B
Absolute P.E
C
P.E
D
Potential hill
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Gravitational potential
Concept:

Gravitational potential at a point in a gravitational field is defined as the work done per unit mass to bring a test mass from infinity to that point.

Formula:

$$ V_g = \frac{U}{m} = \frac{mgh}{m} = gh $$

Solution:

  • Potential Energy (\( U \)) is energy associated with a specific mass \( m \).


  • When we divide this energy by the mass (\( U/m \)), we get a property of the field itself, independent of the test mass. This is called Gravitational Potential.


Why other options are incorrect:

Absolute P.E and regular P.E are measures of total energy (Joules), not energy per unit mass (Joules/kg). A potential hill is a visual analogy, not the physical quantity.

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