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Topic Conservation of energy
Asked 3 times across 3 UPSC exams over 8 years (2014–2022), peaking in 2014.
Key insights
- Most tested in CAPF — 1 of 3 PYQs
- Most asked in 2014
- Recurs across 3 years (2014–2022)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CAPF 2014 → CDS 2015 → GEO 2022
How the concept evolved
Long-running — most appearances (2 of 3) predate 2016, and it still returns.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2022
Which one of the following is the conservation law from which the Bernoulli's equation for fluid flow is derived?
- A Conservation of momentum
- B Conservation of volume
- C Conservation of mass
- D Conservation of energy ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
CDS2015
A body is falling freely under the action of gravity alone in vacuum. Which one of the following remains constant during the fall?
- A Potential energy
- B Kinetic energy
- C Total linear momentum
- D Total mechanical energy ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
CAPF2014
According to the principle of energy conservation, when a piston in an automobile engine compresses the gas in a cylinder, which of the following must occur ?
- A Kinetic energy of gas must increase ✓
- B The gas must undergo a change of state
- C The gas must undergo a chemical change
- D None of the above
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
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