Question

On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy, some of the energy is also transformed into______?
A)kinetic energy

B)light energy

C)solar energy

D)heat energy

Answer 1

D)heat energy but for people who are in K12  the answer switches and D tuns into A

Answer 2

The answer is: D) heat energy.

In this example energy is transformed from chemical energy to thermal energy (heat).

The law of conservation of energy states that the total energy of an isolated system remains constant.

Energy can neither be created nor destroyed; it can only be transformed or transferred from one form (in this example chemical energy) to another (in this example thermal energy).