Which of these correctly compares the masses of different objects in the universe?
A moon has less mass than a star and more mass than the planet it orbits.
G.A planet has less mass than a galaxy and more mass than the star it orbits.
H.A galaxy has less mass than a moon and more mass than a planet.
J.A star has less mass than a galaxy and more mass than a planet.
To compare the masses of different objects in the universe, we need to consider their relative sizes. Let's break down each option and analyze them one by one:
A. A moon has less mass than a star and more mass than the planet it orbits.
This statement doesn't hold true because stars are generally much more massive than moons. Additionally, a planet usually has significantly more mass than its moon.
B. A planet has less mass than a galaxy and more mass than the star it orbits.
This option seems more accurate. Galaxies are composed of billions or even trillions of stars, which makes them significantly more massive than individual planets. On the other hand, stars are generally much more massive than the planets orbiting them.
C. A galaxy has less mass than a moon and more mass than a planet.
This statement is incorrect. Galaxies are comprised of billions or even trillions of stars, making them significantly more massive than individual moons or planets.
D. A star has less mass than a galaxy and more mass than a planet.
This option is correct. Galaxies consist of numerous stars, making them more massive. Stars are typically more massive than the planets they have in their systems.
Therefore, the correct option is J: A star has less mass than a galaxy and more mass than a planet.