The ultimate source of energy that powers the Sun is
A)chemical potential energy of hydrogen burning into helium.
B)mass energy of hydrogen fusing into helium.
C)gravitational potential energy of the contraction of the gas cloud that formed the Sun.
D)kinetic energy of the orbital motion of the Sun.
E)thermal energy of the hydrogen atoms in the Sun.

Question

Quizplus · Accepted Answer

The Sun's energy is produced through nuclear fusion, specifically the fusion of hydrogen atoms into helium. This process converts some of the mass of the hydrogen into energy in accordance with Einstein's famous equation E=mc2. Therefore, the ultimate source of energy that powers the Sun is the mass energy of hydrogen fusing into helium.

The Ultimate Source of Energy That Powers the Sun Is