Astronomy Test: Can You Pass?

100 Questions | Total Attempts: 156

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Astronomy Quizzes & Trivia

Astronomy is a natural science, and it's applies maths, physics, chemistry and geography, Let's start and know more about it!


Questions and Answers
  • 1. 
    The basic unit of length in the metric system is the
    • A. 

      Micron

    • B. 

      Meter

    • C. 

      Mile

    • D. 

      Kilometer

  • 2. 
    Which of the following numbers has the same meaning as 8670  
    • A. 

      8.67 x 10 ^ 3

    • B. 

      8.67 x 10 ^ 2

    • C. 

      8.67 x 10 ^ 1

    • D. 

      0.867 x 10 ^ 3

  • 3. 
    The distance traveled by light or by an object is equal to speed times
    • A. 

      Frequency

    • B. 

      Meters

    • C. 

      Mass

    • D. 

      Time

  • 4. 
    The procedure of writing numbers as a decimal value between 1 and 10 times 10 raised toa n integer power (e.g., 2.4 x 10 ^4) is called
    • A. 

      The scientific method

    • B. 

      Mathematical precision

    • C. 

      Scientific notation

    • D. 

      Astronomical designation

  • 5. 
    A light-year is defined as the
    • A. 

      Speed of light in a vacuum

    • B. 

      Average distance from the Earth to the Sun

    • C. 

      Length of the Solar Year

    • D. 

      Distance light travels in one year

  • 6. 
    Which unit of measure, often used by astronomers, is not a preferred SI unit of combination?
    • A. 

      Meter

    • B. 

      Second

    • C. 

      Kg/m^3

    • D. 

      Km/s

    • E. 

      Angstrom

  • 7. 
    In space light travels about
    • A. 

      3 m/s

    • B. 

      300 m/s

    • C. 

      300 km/s

    • D. 

      300,000 km/s

  • 8. 
    The process of breaking light down into its component colors creates a(n)
    • A. 

      Image

    • B. 

      Hologram

    • C. 

      Spectrum

    • D. 

      Pulse

  • 9. 
    Ancient astronomers divided the sky into regions containing distinct groups of stars called
    • A. 

      Clusters

    • B. 

      Coordinates

    • C. 

      Constellations

    • D. 

      Galaxies

    • E. 

      Nebula

  • 10. 
    Scientific results must be
    • A. 

      Hyptothetical

    • B. 

      Reproducible

    • C. 

      Controversial

    • D. 

      Believed by at least 50% of scientists

  • 11. 
    The Earth's atmosphere shields us from most kinds of electromagnetic radiation. The exceptions are
    • A. 

      Visible light and radio waves.

    • B. 

      X-rays and ultraviolet radiation.

    • C. 

      Only visible light frequencies.

    • D. 

      X-rays and gamma rays

    • E. 

      X-rays and radio waves.

  • 12. 
    Compared with visible-light photons, a photon of radio waves has
    • A. 

      Less energy.

    • B. 

      More energy

    • C. 

      The same energy

    • D. 

      Redder energy

    • E. 

      AM energy.

  • 13. 
    The type of electromagnetic radiation with a wavelength just longer than that of red light is
    • A. 

      Radio waves.

    • B. 

      X-rays.

    • C. 

      Infrared radiation.

    • D. 

      Gamma rays.

    • E. 

      Ultraviolet radiation.

  • 14. 
    The rule describing the relationship between the temperature of a material and the wavelength of its peak emittedradiation is
    • A. 

      The blackbody rule.

    • B. 

      The quantum theory.

    • C. 

      Planck's law.

    • D. 

      The Stefan-Boltzmann law.

    • E. 

      Wien's law.

  • 15. 
    The rule describing the relationship between the total radiant energy emitted by a blackbody to its temperature is
    • A. 

      The blackbody rule.

    • B. 

      The quantum theory.

    • C. 

      Planck's law.

    • D. 

      The Stefan-Boltzmann law.

    • E. 

      The Wien displacement law.

  • 16. 
    The atomic model that places electrons in definite orbits around the nucleus but allows only certain orbits to exist isthe
    • A. 

      Bohr model.

    • B. 

      Einstein model.

    • C. 

      Feynman model.

    • D. 

      Rutherford model.

    • E. 

      Thomson model.

  • 17. 
    If electrons are or removed from a neutral atom the atom is said to be
    • A. 

      Nuclear.

    • B. 

      Ionized.

    • C. 

      Doubly neutral.

    • D. 

      Electronic.

    • E. 

      A proto-atom.

  • 18. 
    The lowest possible energy state of an atom is called the
    • A. 

      Excited state.

    • B. 

      Ground state.

    • C. 

      Neutral state.

    • D. 

      Photon level.

    • E. 

      Balmer level.

  • 19. 
    When a gas removes energy at a particular wavelength from radiation passing through it, it creates a(n)
    • A. 

      Continuous spectrum.

    • B. 

      Emission line.

    • C. 

      Stellar spectrum.

    • D. 

      Absorption line.

    • E. 

      Black hole.

  • 20. 
    In a spectrum, bright lines that appear at wavelengths where there is more radiation than at neighboring wavelengthsare called
    • A. 

      Absorption lines.

    • B. 

      Emission lines.

    • C. 

      Fraunhofer lines.

    • D. 

      Continuum lines

    • E. 

      Stellar lines.

  • 21. 
    A curved lens or mirror can form an image by bringing light to a(n)
    • A. 

      Aberration.

    • B. 

      Focus.

    • C. 

      Resolution.

    • D. 

      Divergence.

    • E. 

      Ray.

  • 22. 
    A reflecting telescope that uses a secondary mirror to reflect light to the side of the telescope is called a(n)
    • A. 

      Newtonian.

    • B. 

      Cassegrain.

    • C. 

      Schmidt.

    • D. 

      Gregorian.

    • E. 

      Halleyan.

  • 23. 
    All other things being equal, and ignoring atmospheric effects, a reflecting telescope with a large objective mirror willhave, compared with a telescope with a smaller mirror,
    • A. 

      Better light-gathering power only

    • B. 

      Better resolution only.

    • C. 

      Better light-gathering power and better resolution.

    • D. 

      Better light-gathering power but poorer resolution.

    • E. 

      Better infrared sensitivity.

  • 24. 
    Today, sites for new large ground-based telescopes are selected primarily on the basis of all the following except
    • A. 

      Proximity to universities and research centers

    • B. 

      Elevation above sea level.

    • C. 

      The characteristics of the atmosphere above the proposed site.

    • D. 

      Ability to see the southern sky.

    • E. 

      Dark sky.

  • 25. 
    The Hubble Space Telescope is a(n)
    • A. 

      Ground-based refracting telescope

    • B. 

      Ground-based reflecting telescope.

    • C. 

      Orbiting refracting telescope.

    • D. 

      Orbiting reflecting telescope.

    • E. 

      Orbiting radio telescope.

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