Test Your Knowledge On Astronomy! Trivia Quiz

50 Questions | Total Attempts: 831

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Test Your Knowledge On Astronomy! Trivia Quiz

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Questions and Answers
  • 1. 
    The term Zodiac refers to 
    • A. 

      The light from Saturn's rings

    • B. 

      A method for making astrological predictions

    • C. 

      A group of constellations lying near the ecliptic

    • D. 

      The head of the Celestial Empire

    • E. 

      All constellations named after animals

  • 2. 
    In current scientific opinion, Stonehenge is considered to have been
    • A. 

      The site of ancient fertility rite

    • B. 

      An ancient burial ground

    • C. 

      All answers are acceptable

    • D. 

      an astronomical observatory.

    • E. 

      The site of early Christian rituals

  • 3. 
    If the Moon is very close to a certain star in the sky, how long will it be before the Moon is again close to the same
    • A. 

      24 hours

    • B. 

      One year

    • C. 

      One week

    • D. 

      one month

    • E. 

      23 hours 56 minutes

  • 4. 
    In ancient times, how did people primarily tell the difference between planets and stars?
    • A. 

      The planets moved relative to the stars.

    • B. 

      None of the other answers is correct

    • C. 

      The planets looked bigger.

    • D. 

      The planets showed phases.

    • E. 

      The planets didn't twinkle.

    • F. 

      All answers correct

  • 5. 
     Most Greek astronomers believed that the Earth is immobile but they could not explain with their theories.
    • A. 

      Eclipses of the Sun

    • B. 

      Retrograde motion of the planets

    • C. 

      All of the other answers are correct.

    • D. 

      Stellar motion.

    • E. 

      Parallaxes for the stars.

  • 6. 
    A planet moves fastest in its orbit 
    • A. 

      when it is in opposition.

    • B. 

      when it is closest to the Sun.

    • C. 

      The greater its mass.

    • D. 

      When it is farthest from the Sun

    • E. 

      The closer it is to its satellites.

  • 7. 
    In the geocentric concept if the universe, which direction does the celestial sphere appear to rotate about the stationary Earth? In the heliocentric universe, which direction does the earth rotate
    • A. 

      geocentric: east to west; heliocentric: west to east

    • B. 

      Geocentric: west to east; heliocentric: west to east

    • C. 

      Geocentric: west to east; heliocentric: east to west

    • D. 

      Geocentric: east to west; heliocentric: east to west

  • 8. 
    The rings of Saturn were discovered by
    • A. 

      Kepler

    • B. 

      Ptolemy.

    • C. 

      Copernicus

    • D. 

      Galileo

  • 9. 
    Aristotle concluded that the Earth is spherical from the curvature of its shadow on the
    • A. 

      Sun during a solar eclipse.

    • B. 

      Earth during a lunar eclipse

    • C. 

      Earth during a solar eclipse

    • D. 

      Moon during a lunar eclipse.

    • E. 

      Moon during a solar eclipse.

  • 10. 
    Sunspots were discovered by   
    • A. 

      Newton.

    • B. 

      Kepler

    • C. 

      Galileo.

    • D. 

      Copernicus.

  • 11. 
    Aristarchus argues
    • A. 

      For a flat Earth.

    • B. 

      For a heliocentric universe

    • C. 

      that planets move on epicycles.

    • D. 

      That the Sun is twice as large as the Moon

    • E. 

      For a geocentric universe

  • 12. 
     The higher the frequency of light
    • A. 

      The longer (larger) its wavelength

    • B. 

      The shorter (smaller) its wavelength

    • C. 

      The greater its velocity in a vacuum.

    • D. 

      the redder it will be

  • 13. 
    In order to account for the retrograde motion of the planets, Ptolemy introduced th
    • A. 

      Epicycle.

    • B. 

      Equant.

    • C. 

      Deferent.

    • D. 

      Center of eccentric.

    • E. 

      Ecliptic.

  • 14. 
    In the Copernican theory, day and night are accounted for by 
    • A. 

      The rotation of the Earth.

    • B. 

      The rotation of the celestial sphere.

    • C. 

      The revolution of the Sun about the Earth.

    • D. 

      The revolution of the Earth about the Sun.

    • E. 

      The rotation of the Sun.

  • 15. 
    Ptolemy and Copernicus both 
    • A. 

      Believed the Sun went around the Earth.

    • B. 

      Believed the Earth went around the Sun.

    • C. 

      Believed Mars would look faintest when at opposition.

    • D. 

      Used uniform circular motion to explain planetary motion.

    • E. 

      Made very accurate predictions of planetary motion

  • 16. 
    The Copernican model of the solar system allowed, for the first time, the measurement of 
    • A. 

      the relative distances of the planets.

    • B. 

      the mass of the Earth

    • C. 

      the relative masses of the planets.

    • D. 

      The distance of the Sun.

  • 17. 
     By using a Heliocentric model for the solar system, Copernicus was able to find for the first time the
    • A. 

      Distance to the Moon.

    • B. 

      Cause of tides in the Earth's oceans.

    • C. 

      Sidereal periods of the planets.

    • D. 

      Diameters of the planets.

    • E. 

      Synodic periods of the planets.

  • 18. 
     Which of the following planets never reaches opposition (as seen from the Earth)? 
    • A. 

      Venus

    • B. 

      Jupiter

    • C. 

      Saturn

    • D. 

      Mars

  • 19. 
    You are observing a star about 95 trillion km (10 lightyears) away. How old is the most recent information you can get about this star?
    • A. 

      300,000 seconds

    • B. 

      This can't be determined without having more information

    • C. 

      95 trillion seconds

    • D. 

      10 years

    • E. 

      100 years

  • 20. 
    Which of the following is the smallest? 
    • A. 

      The Earth

    • B. 

      The Universe

    • C. 

      A galaxy

    • D. 

      The Sun

  • 21. 
    The astronomer Tycho Brahe was known for his, 
    • A. 

      Use of the telescope

    • B. 

      Accurate observations of planet positions.

    • C. 

      Theory of epicycles.

    • D. 

      Observation of the Moon's features.

    • E. 

      measurement of the Earth's rotation.

  • 22. 
    The discovery that planets move in elliptical orbits with the Sun at the focus was made by
    • A. 

      Halley

    • B. 

      Giordano Bruno.

    • C. 

      Tycho Brahe.

    • D. 

      Kepler.

    • E. 

      Galileo.

  • 23. 
    Which of the following is NOT one of the four fundamental forces?
    • A. 

      Electromagnetism

    • B. 

      Gravity

    • C. 

      Strong nuclear force

    • D. 

      Weak nuclear force

    • E. 

      Angular Momentum

  • 24. 
    The four large moons around Jupiter were discovered by 
    • A. 

      Ptolemy.

    • B. 

      Kepler.

    • C. 

      Copernicus

    • D. 

      Galileo

  • 25. 
     If there had been no oceans on the Earth, the Earth's present atmosphere would be largely composed of 
    • A. 

      Water

    • B. 

      Nitrogen

    • C. 

      oxygen

    • D. 

      Carbon dioxide

    • E. 

      Carbon monoxide

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