Space Review

he planets in part A of this diagram have more moons than the planets in part B.

• True

• False

Answer explanation

less

The inner planets have greater densities than the outer planets.

• True

• False

The outer planets are also known as Jovian planets.

• True

• False

All the gas giants in our solar system have rings.

• True

• False

When the core of a star collapses forever, the extremely dense object that remains is called a(n) black dwarf.

• True

• False

Answer explanation

white dwarf

Absolute magnitude takes distance into account when indicating the surface temperature of a star.

• True

• False

Answer explanation

brightness

The Hertzsprung-Russell diagram (H-R) diagram, first plotted in the nineteenth century, demonstrates the relationship of luminosity and mass.

• True

• False

Answer explanation

temperature

Stars are assigned a spectral type, with M (red stars) being the hottest stars.

• True

• False

Answer explanation

coldest

A lunar eclipse occurs when the Earth passes between the Sun and Moon.

• True

• False

Satellites can be manmade or natural.

• True

• False