What do we mean when we say that the Sun is in gravitational equilibrium?
A)The Sun maintains a steady temperature.
B)There is a balance within the Sun between the outward push of pressure and the inward pull of gravity.
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 produced by nuclear fusion in the core of the Sun and the inward pull of gravity. This balance keeps the Sun's size and temperature stable. Choice A is not necessarily related to gravitational equilibrium. Choice C is not a concept related to gravitational equilibrium. Choice D is incorrect, as the Sun loses mass over time through nuclear fusion, solar wind, and other processes.

What Do We Mean When We Say That the Sun