According to our theory of solar system formation,which law best explains why the central regions of the solar nebula got hotter as the nebula shrank in size?
A)the law of conservation of angular momentum
B)Newton's third law
C)the two laws of thermal radiation
D)the law of conservation of energy

Question

Quizplus · Accepted Answer

The law of conservation of energy best explains why the central regions of the solar nebula got hotter as the nebula shrank in size. As the nebula shrank, its gravitational potential energy was converted into kinetic energy, causing the gas particles to move faster and collide with each other more frequently. This increased collision rate in turn increased the thermal energy and temperature of the central regions of the nebula. The conservation of energy means that energy cannot be created or destroyed, only transferred from one form to another, so the energy released from the gravitational collapse of the nebula was converted into heat energy.

According to Our Theory of Solar System Formation,which Law Best