Question

According to the law of conservation of energy, energy is not created or destroyed. It changes form or is transformed. What energy transformation(s) is/are depicted here?

1) electrical energy ‡’ light energy
2) potential energy ‡’ kinetic energy ‡’ light energy
3) chemical energy ‡’ electrical energy ‡’ light energy
4) chemical energy ‡’ electrical energy ‡’ heat and light energy

Answer 1

The correct option representing the energy transformations is option 4) chemical energy ‡’ electrical energy ‡’ heat and light energy. (option 4)

Step-by-step explanation:

In the given options, option 4 correctly depicts a series of energy transformations. The process starts with the conversion of chemical energy, likely from a chemical reaction, into electrical energy. This electrical energy can further transform into both heat and light energy. This aligns with common occurrences in various systems, such as the operation of a light bulb. When electricity flows through a filament in the bulb, it heats up, producing both heat and light.

The law of conservation of energy dictates that the total energy in a closed system remains constant. While energy can change forms, it is neither created nor destroyed. In the context of option 4, the chemical energy stored in a substance undergoes transformations into electrical energy and then into heat and light energy, adhering to the principle of energy conservation.

Understanding these energy transformations is essential in various fields, from physics to engineering, providing a foundation for designing efficient systems and technologies.(option 4)