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Eleventh Grade (Grade 11) Stars Questions

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Grade 11 Stars
Constellations are                                                .
  1. clusters of stars very near each other in space
  2. groupings of planets in the sky
  3. patterns of stars in the sky
  4. close associations of stars and visible planets
Grade 11 Stars
The parallaxes of nearby stars are produced by                                        .
  1. stellar motion across our line of sight
  2. stellar motion along our line of sight
  3. the rotation of the galaxy
  4. Earth's rotation on its axis
  5. Earth's revolution around the Sun
Grade 11 Stars
The parallax of a star is inversely related to its                .
  1. temperature
  2. distance
  3. luminosity
  4. diameter
  5. composition
Grade 11 Stars
When you view a Hertzsprung–Russell diagram, which of the following is true for most stars? Select all that apply.
  1. Surface temperature increases as absolute magnitude increases.
  2. It helps us measure the distance from Earth to a star.
  3. Most stars fall into the area called the main sequence.
  4. There is no pattern to where stars fall on the diagram.
Grade 11 Stars
If a star has a parallax of                      arcseconds, then its distance is                     .
  1. 0.2; 20 parsecs
  2. 0.04; 25 light years
  3. 0.1; 10 light years
  4. 0.25; 4 parsecs
  5. 0.5; 0.5 parsecs