5 Written Questions

1. a diagram showing the relationship between temperature and absolute magnitude
2. A star that explosively increases in brightness.
3. A star of extremely high density.
4. A cloud of dust and gas in space.
5. The magnitude telling the brightness of a star as viewed from Earth.

5 Matching Questions

1. Hubble's Law
2. red giant
3. galaxy cluster
4. pulsar
5. big bang

1. a A large, cool, bright star.
2. b the more distant a galaxy, the faster it is moving away
3. c A source of regular radio pulses.
4. d The theory for the origin of the universe.
5. e a group of galaxies held together by gravity

5 Multiple Choice Questions

1. A star that has exhausted most of its nuclear fuel and is believed to be near its final stage.
   1. white dwarf
   2. big bang
   3. irregular
   4. Milky Way
2. A VERY large, VERY bright, cool star.
   1. supergiant
   2. apparent
   3. supernova
   4. red giant
3. An exploding star that increases in brightness many thousands of times.
   1. spiral
   2. nova
   3. supergiant
   4. supernova
4. a galaxy made of young and old stars
   1. parallax
   2. pulsar
   3. spiral
   4. nova
5. a galaxy made of young stars
   1. pulsar
   2. irregular
   3. nebula
   4. protostar

5 True/False Questions

1. binary star → A star of extremely high density.

   True        False

2. protostar → A source of regular radio pulses.

   True        False

3. red shift → produced by a light source that is moving away from the observer

   True        False

4. elliptical → a galaxy made of old stars

   True        False

5. main sequence → The magnitude telling the actual brightness of a star.

   True        False