ASTRONOMY EXAM 8 QUESTIONS AND ANSWERS
The sun's light and heat are generated by_____ in it's core - nuclear reaction
The gravitational domination of planets by the sun - solar system
The Sun is mostly made up of - hydrogen and helium
Mercury, Venus, earth, and mars are small bodies with relatively thin or no atmospheres - the
inner planets
Jupiter, Saturn, Uranus, and Neptune are gaseous liquid - the outer planets
(Mercury to Mars) are so-named are so-named_________ because of their resemblance to
Earth - terrestrial planets
(Jupiter to Neptune) are named for their resemblance to Jupiter - jovian planets
Is an object that orbits the sun, is massive enough that gravity compresses it into an spherical
shape, but has not swept its orbital region clear of other objects that add up to a mass
comparable to its own mass. - dwarf planet
Rocky or metallic bodies, the largest of which is the dwarf planet. - astroids
Most of the asteroids orbit the sun in a belt between the orbits of _______and________ a
region called the asteroid belt. - mars, jupiter
Beyond Neptune, extending to perhaps 50 AU from the sun, is a region called the - kuipter belt.
