Stored energy.

• A. Potential energy
• B. Sound energy
• C. Electrical energy
• D. Thermal energy

Answer: (A)

Stored energy is energy kept in a system because of its position or arrangement, not because it’s currently moving. That kind of energy is called potential energy. A stretched spring or an object held at height stores energy that can do work later when it’s released or moved. When you let it go, that stored energy can become motion (kinetic energy) or other forms of energy.

Sound energy comes from vibrating objects and travels as waves; thermal energy is related to temperature and the random motion of particles; electrical energy involves moving charges or electric fields. These describe energy in different ways, not energy stored by position or configuration, which is why potential energy best fits “stored energy.”