The Physics of Astrophysics (Option E) Part 1

29 questions on Topics 10.1 to 10.4 of HL Astrophysics. Requires knowledge of magnitudes of the universe, the stellar types and star types as well as equations and definitions of related subtopics. 

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1. The observed movement of the stars at night is due to...?

  • The motion of our solar system
  • The rotation of the earth on its axis
  • The movement of the stars round the earth
  • The movement of the earth around the sun
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2. The observed retrograde motion of planets is caused by...? (Need help? search 'retrograde motion')

  • The relative orbits of the earth and the observed planet
  • The rotation of the earth on its axis
  • The elliptical orbits of the planets
  • The gods

3. Precession caused by the gravitational pull of the sun on the earth (being a non-perfect sphere) is observed on the earth as...?

  • The rotation of the axis on which the earth spins
  • The rotation of the earth on its axis
  • The orbit of the moon around the earth
  • The elliptical orbit of the earth

4. Asteroids and Comets are two names which are used for the same thing.

  • False
  • True

5. Physicists recognize constellations as being physically related.

  • False
  • True
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