What do we mean when we say that the Sun is in gravitational equilibrium?
A) There is a balance within the Sun between the outward push of pressure and the inward pull of gravity.
B) The Sun maintains a steady temperature.
C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward.
D) The Sun always has the same amount of mass, creating the same gravitational force.

Question

Quizplus · Accepted Answer

Gravitational equilibrium refers to the balance between the outward pressure and inward pull of gravity in a star. In the case of the Sun, the fusion of hydrogen in its core produces an outward pressure that is counterbalanced by the force of gravity pulling the matter inward. This balance allows the Sun to maintain a stable size and shape over time.

What Do We Mean When We Say That the Sun