Physics · Chapter 4 of 11

Energy: BPSC & UPPCS Prelims PYQs

4 previous-year questions on Energy. Each one opens to its answer and explanation.

1. 1. 71st BPSC Prelims 2025

   The potential energy of a freely falling body continuously decreases.

   1. AThe principle of conservation of energy is not violated
   2. BThe principle of conservation of energy is violated
   3. CGravitational force is violated
   4. DGravitational force is not violated
   Answer and explanation →

2. 2. 71st BPSC Prelims 2025

   A pair of Oxen exerts a force of 140 newton while ploughing the field. The field ploughed is 15 meter long. The work done in ploughing the length of the field is:

   1. A2000 Joule
   2. B1900 Joule
   3. C2100 Joule
   4. D2200 Joule
   Answer and explanation →

3. 3. 68th BPSC Prelims 2023

   Which of the following energy changes involves frictional force?

   1. AKinetic energy to heat energy
   2. BPotential energy to sound energy
   3. CChemical energy to heat energy
   4. DMore than one of the above
   5. ENone of the above
   Answer and explanation →

4. 4. UPPSC Prelims 2016

   In wind power which form of energy is converted into electrical energy?

   1. AKinetic energy
   2. BPotential energy
   3. CSolar energy
   4. DRadiant energy
   Answer and explanation →