Listen

Question

Which of the following explanations BEST describes the energy transformations within a closed system?

Question 2 options:

Chemical energy is converted into thermal energy through combustion, and thermal energy is then transformed into mechanical energy in a steam engine.

Light energy from the Sun is converted into mechanical energy in a solar-powered car, and mechanical energy is further transformed into electrical energy to power the car's systems.

Potential energy is converted into nuclear energy in the core of the Earth, and nuclear energy is then transformed into electromagnetic energy in the form of earthquakes.

Electrical energy is converted into kinetic energy in a wind turbine, and kinetic

Answer 1

The first option provides a clear and coherent description of energy transformations within a closed system:

"Chemical energy is converted into thermal energy through combustion, and thermal energy is then transformed into mechanical energy in a steam engine."

This explanation effectively illustrates a sequence of energy transformations. In the context of a closed system, this transformation highlights how different forms of energy interact and change from one to another, ultimately resulting in mechanical work.

The other options, while they describe transformations of energy, do not fit as well within the framework of a closed system or are less coherent in their depiction of energy transformations.