Answer: Elastic potential energy.
- A Kinetic energy according to conventional understanding
- B Nuclear energy in routine practice
- C Elastic potential energy
- D Chemical energy overall
Correct answer: C. Elastic potential energy
Explanation: Stretched rubber band stores elastic potential energy due to deformation.
As a pendulum swings, total mechanical energy (KE+PE) stays constant: at the highest points A and C, all energy is potential (zero speed); at the lowest point B, all of that energy has converted into kinetic energy (maximum speed).
Concept context
Work-energy theorem, potential energy, conservation of energy, collisions.