Question

The significance of the law of conservation of energy lies in its application to which of the following?

• A. Creating new forms of energy from raw materials.
• B. Improving the efficiency of machines by understanding how energy is transformed.
• C. Completely preventing all energy loss in closed systems.
• D. Directly determining the absolute amount of energy in the universe.

Answer 1

Answer:

B. Improving the efficiency of machines by understanding how energy is transformed.

• Understanding how energy is conserved but changes form is essential for improving machines and technologies to minimize energy loss to waste heat or other forms.