Quiz: Astronomy Practice Test For Students!

54 Questions | Total Attempts: 464

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Quiz: Astronomy Practice Test For Students! - Quiz

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Questions and Answers
  • 1. 
    Who of the following was NOT a proponent of the heliocentric model of the solar system?
    • A. 

      Newton

    • B. 

      Ptolemy

    • C. 

      Galileo

    • D. 

      Copernicus

  • 2. 
    Which of the following properties of an astronaut changes when he/she is standing on the Moon, relative to when the astronaut is standing on Earth?
    • A. 

      Weight

    • B. 

      Mass

    • C. 

      Inertia

    • D. 

      All of the above

  • 3. 
    Which of the following most closely approximtes the number of stras in the Milky Way?
    • A. 

      10 million

    • B. 

      10 billion

    • C. 

      100 million

    • D. 

      100 billion

  • 4. 
    Which of the following is true for an object in uniform circular motion?
    • A. 

      The acceleration of the object is zero.

    • B. 

      The velocity of the object is constant.

    • C. 

      The acceleration of the object is toward the center of motion.

    • D. 

      The angular momentum of the object is zero.

    • E. 

      The speed of the object is changing.

  • 5. 
    Which of the following is the largest?
    • A. 

      The diameter of Earth.

    • B. 

      The diameter of the moon.

    • C. 

      The distance from Earth to the Sun.

    • D. 

      The diameter of the Sun.

  • 6. 
    Which of the following is false?
    • A. 

      The phases of the Moon cycle with a period that is longer than its siderial period

    • B. 

      The observed phase of the Moon changes over the course of one night

    • C. 

      Everyone on Earth observes the same phase of the Moon on a given night

    • D. 

      In some phases, the Moon can be observed during the day

  • 7. 
    Which choice lists the objects in correct size from smallest to largest?
    • A. 

      Sun, Earth, solar system, Galaxy

    • B. 

      Earth, Sun, Galaxy, solar system

    • C. 

      Earth, Sun, solar system, Galaxy

    • D. 

      Earth, Galaxy, Sun, solar system

  • 8. 
    When the Earth catches up to a slower moving outer planet and passes it in its orbit like a faster runner overtakes a slower runner in an outside lane, the planet
    • A. 

      Decreases in brightness as it passes through the Earth's shadow

    • B. 

      Slows down because it feels the Earth's gravitational pull

    • C. 

      Exhibits retrograde motion

    • D. 

      Moves into a more elliptical orbit

  • 9. 
    When it is winter in the northern hemisphere, it is ____________ in the southern hemisphere.
    • A. 

      Summer

    • B. 

      Spring

    • C. 

      Winter

    • D. 

      Fall

  • 10. 
    When dropped from the same height (in a vacuum), when will a lead weight hit the ground compared to a less dense wood ball?
    • A. 

      Much later

    • B. 

      The same time

    • C. 

      Much sooner

  • 11. 
    What was one of Newton's contributions to astronomy?
    • A. 

      He developed a theory of gravity that could explain orbital motion.

    • B. 

      He said that the Earth is not at the center of the universe.

    • C. 

      He discovered that the planets move around the Sun in elliptical orbits.

    • D. 

      He used a telescope to observe the heavens, thereby reinforcing the moiton of heliocentricity.

    • E. 

      He made extensive and detailed observations of the positions of planets.

  • 12. 
    What does Kepler's second law indicate about the orbital speed of a planet?
    • A. 

      The orbital sspeed of each planet is constant.

    • B. 

      The orbital speed of a planet varies in no predictable way.

    • C. 

      A planet moves at its fastest when it is closest to the Sun.

    • D. 

      A planet moves at its slowest when it is closest to the Sun.

  • 13. 
    What did Newton determine is necessary for the force exerted by the Sun on the planets to yield elliptical orbits?
    • A. 

      The force must be attractive.

    • B. 

      The force must be repulsive.

    • C. 

      The force must vary inversely with distance.

    • D. 

      The force must vary inversely with distance squared.

    • E. 

      Both a and d above.

  • 14. 
    What causes summer here in the northern hemisphere? In the summer, at this point
    • A. 

      The Earth's northern hemisphere is tilted toward the Sun

    • B. 

      The Earth's northern hemisphere is tilted away from the Sun

    • C. 

      The Earth is closer to the Sun

  • 15. 
    What are the advantage(s) of placing telescopes in space?
    • A. 

      Better access to high energy radiation such as ultraviolet light and X-rays

    • B. 

      Better access to low energy radiation such as infrared and microwave radiation

    • C. 

      Avoids the blurring of images caused by the Earth's atmosphere

    • D. 

      All of the above

  • 16. 
    The ________________ is the point on the celestial sphere directly above any observer.
    • A. 

      Asterism

    • B. 

      Celestial equator

    • C. 

      South celestial pole

    • D. 

      Zenith

  • 17. 
    The twelve constellations the solar system bodies move through are the
    • A. 

      Stages of heaven

    • B. 

      Galactic equator

    • C. 

      Signs of the zodiac

    • D. 

      Nodes of the ecliptic

  • 18. 
    The shortest day of the year for a person living in the Northen Hemisphere is the
    • A. 

      Winter solstice

    • B. 

      Summer solstice

    • C. 

      Vernal equinox

    • D. 

      Autumnal equinox

  • 19. 
    The rotation of the Moon is tidally locked to its orbital motion around Earth because
    • A. 

      The Moon's orbit is elliptical

    • B. 

      Earth is far more massive than the Moon

    • C. 

      The Sun is far more massive than the Moon

    • D. 

      Earth's orbit around the Sun is elliptical

  • 20. 
    The most massive elements (such as those that make up rocky planets like Earth) were formed
    • A. 

      Inside stars and supernovae

    • B. 

      In the early universe

    • C. 

      In the core of Earth

  • 21. 
    The Moon's sidereal period is 2.2 days shorter than the period during which the Moon's phases change because
    • A. 

      The Moon always keeps the same side turned toward the Earth

    • B. 

      The Moon's orbit is tilted with respect to the Earth's rotational axis

    • C. 

      The Earth must rotate so an observer can see the Moon

    • D. 

      The Earth moves significantly in its orbit around the Sun during that time

  • 22. 
    The Moon undergoes synchronous rotation, and as a consequence the
    • A. 

      Rotational period of the Moon equals the orbital period of the Moon around the Earth

    • B. 

      Rotational period of the Moon equals the rotational period of the Earth

    • C. 

      Rotational period of the Moon equals the orbital period of the Earth around the Sun

    • D. 

      Moon does not rotate as it orbits the Earth

  • 23. 
    The five naked-eye planets and two telescopic planets that wander among the stars in the sky are always near the
    • A. 

      Celestial equator

    • B. 

      Sun.

    • C. 

      Ecliptic.

    • D. 

      Moon

    • E. 

      Horizon.

  • 24. 
    The eccentricity of the majority of the planetary orbits in our Solar System is approximately
    • A. 

      1

    • B. 

      0.2

    • C. 

      0.5

    • D. 

      0

  • 25. 
    The cosmological principle states that
    • A. 

      A unique center of the universe exists

    • B. 

      The universe looks the same everywhere as long as you look on large enough spatial scales

    • C. 

      Physical laws may change from place to place in the universe

    • D. 

      The universe is expanding in all directions at the same rate

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