Question

Question 3 of 10

Which statement describes the law of conservation of energy?
A. Energy can only change from nuclear energy to chemical energy
B. There is only one form of energy.
C. The total energy in a system can only increase.
D. When an energy transformation happens, no energy is destroyed
or created.

Answer 1

Answer: D

Explanation: not A because energy can also change from chemical to mechanical or nuclear to mechanical. Not B because there are many types of energy eg, mechanical, nuclear, chemical... Not C because The total energy of a system is constant(conservation of energy).

Answer 2

D. When an energy transformation happens, no energy is destroyed or created.
This is the correct answer because the law of conservation of energy is energy cannot be created nor destroyed