Space Unit Test

How many stars do we have in our solar system?

• 1
• Millions
• it is impossible to know
• 5

The motion of a body orbiting another body in space is called _____.

• revolution 
• period of revolution
• rotation
• period of rotation

Our galaxy is called the

• Earth Nebula
• The Hubble Galaxy
• The Milky Way
• The Snickers

Place these objects in order from smallest to largest.

• Planets, solar system, universe, galaxy
• Solar system, planets, galaxy, universe
• Planets, solar system, galaxy, universe
• Galaxy, solar system, planets, universe

A small, hot star near the end of its life is a star called a

• white dwarf
• red dwarf
• supergiant
• protostar

All stars begin as a __________?

• giant
• black hole
• white dwarf
• nebula

What is a large spherical body that orbits a star?

• Meteorite
• Black hole
• Planet
• Nebula

What type of star runs out of energy last on the HR diagram?

• Large main sequence stars
• Average size main sequence stars
• Small main sequence stars
• They all run out at the same time

Which star has the lowest temperature?

• A
• B
• C
• D

Which star has the lowest luminosity?

• A
• B
• C
• D