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Twelfth Grade (Grade 12) Stars Questions

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Grade 12 Stars
Based on the Hertzsprung-Russell Diagram below, Betelgeuse can be classified as a                     .
  1. cool and bright star
  2. cool and dim star
  3. hot and bright star
  4. hot and dim star
Grade 12 Stars
Which of these stars is hottest?
  1. Red Star
  2. Yellow Star
  3. Orange Star
  4. Blue Star
Grade 12 Stars
Which star is the coldest?
  1. Yellow Star
  2. Red Star
  3. Orange Star
  4. Blue Star
Grade 12 Stars
Examining the H-R diagram below, which of the following observations about Proxima Centauri's star is most likely accurate?
  1. Proxima Centauri's Star is less bright than the Sun and has a surface temperature below 3,400 K.
  2. Proxima Centauri's Star is brighter than the Sun and has a surface temperature below 4,000 K.
  3. Proxima Centauri's Star is less bright than the Sun and has a surface temperature above 3,400 K.
  4. Proxima Centauri's Star is brighter than the Sun and has a surface temperature above 4,000 K.
Grade 12 Stars
Which star type is generally considered hotter?
  1. Giants
  2. White Dwarfs
Grade 12 Stars
What else can the H-R Diagram tell us besides the luminosity and temperature?
  1. Size, color and element make up
  2. Location and distance from Earth
  3. Constellation structures
  4. None of the above
Grade 12 Stars
Which of the following best describes a star?
  1. It composed of rock and metal with a very high density.
  2. It rotates on an axis and revolves around the Sun.
  3. It is too big to be an asteroid, but too small to be a planet.
  4. It is composed of gases that emit light due to nuclear reactions.
Grade 12 Stars
What are the three types of galaxies?
  1. spiral, elliptical, and ambiguous
  2. spiral, elliptical, and irregular
  3. whirlpool, ellipse, and irregular
  4. none of the above
Grade 12 Stars
Based on the Hertzsprung-Russell Diagram below, Sirius can be classified as a                     .
  1. cool and bright star
  2. cool and dim star
  3. hot and bright star
  4. hot and dim star