Astronomy Pre-Test

What is most likely to be found in a nebula?

• Asteroids
• Planets
• Gas Clouds
• Salt Crystals

Beginning with a nebulae, which is the next stage in the life cycle of a star?

• Supernova
• White Dwarf
• Protostar
• Red Giant

Galaxies have all of the following shapes EXCEPT —

• irregular
• spiral
• conical
• elliptical

The name of the galaxy that contains the Sun and its components is —

• the Zodiac
• Perseus
• the Milky Way
• Andromeda

What would happen if the Earth was not tilted on its axis?

• It would be warm all of the time.

• It would be the same temperature everywhere.

• There would be no seasons

What word best describes a full revolution of the Earth around the Sun?

• day

• year

• eclipse

What is an astronomical unit?

• A telescope

• The distance between the Earth and the sun

• 200 billion kilometers

Planet X and Planet Y are the same size. X is much farther from the star they orbit than Y is. Which planet has more gravitational pull from its star?

• x

• Y

• The gravitational pull is the same.

• The planets create their own gravitational pull and are not affected by the star

Which of the following is the smallest type of star?

• Red giant

• Red super giant

• White dwarf

• Blue dwarf

What, in theory, started the expansion of the universe?

• Solar eclipse

• Gravitational pull

• Quick compression

• Big bang