Space Science Exam 1 hard

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  1. 1) From the horizon to the observer's zenith is an angle of
    90 degrees for everyone on the Earth.
  2. The 26,000 year cycle that changes the poles and equinoxes is called
    Precession.
  3. 3) In the Kelvin scale, absolute zero lies at

     Zero K.
  4. 4) Which of these was NOT seen telescopically by Galileo?
    Stellar parallax
  5. 5) Into how many constellations is the celestial sphere divided?
    88
  6. 6) The time for the Moon to orbit Earth, relative to the stars is
    27.3 days.
  7. Image Upload
    The amplitude is 4 and the wavelength is 6.
  8. In an annular eclipse
    The Sun appears as a thin, bright ring.
  9. In Bohr's model of the atom, electrons
    Only make transitions between orbits of specific energies
  10. At what phase would you expect to find extremely high and low tides?
    Both new and full moons
  11. When a planet's orbit takes it closest to the Sun, it's called
    Perihelion.
  12. A solar eclipse can only happen during a
    New moon.
  13. Which of these is emitted when an electron falls from a higher to lower orbital?
    A photon
  14. The fact that the Earth has moved along its orbit in the time it took to rotate once is the reason for
    The difference between solar and sidereal time.
  15. TRUE/FALSE

    The frequency of a water wave gives us its height.
    False
  16. True/False

    A tropical year is the same as a sidereal year
    False
  17. TRUE/FALSE

    According to Newton's second law, if you double the force acting on a body, the acceleration will double
    True
  18. TRUE/FALSE

    A planet (or comet) will speed up as it approaches the Sun.
    True
  19. TRUE/FALSE

    The closest terrestrial analog to hours of right ascension is angle of longitude.
    True
  20. TRUE/FALSE

     In blackbody radiation, the energy is radiated uniformly in every region of the spectrum, so the radiating body appears black in color.
    False
  21. TRUE/FALSE

     The greater the disturbance of the medium, the higher the amplitude of the wave
    True
  22. TRUE/FALSE

    As a star's temperature increases, the frequency of peak emission also increases
    True
  23. TRUE/FALSE

     
    According to Newton's third law, when the Voyager probes passed Jupiter in 1979, they exerted exactly the same force on Jupiter as the giant planet did on them.
    True
  24. The time interval of 365.242 days is defined as the ________
    Tropical Year
  25. The apparent angular shift of any object across a distant background, when viewed from two different places, is called ________ shift.
    Parallax or Parallactic
  26. One of the requirements of the Scientific Method is that an experiment must be ________.
    Repeatable
  27. The product of the wavelength times the frequency of a wave is its ________.
    Velocity
  28. A featureless spectrum, such as a rainbow, is said to be ________.
    Continuous
  29. The most energetic photons are ________.
    Gamma Rays or Gamma
  30. A wave with a period of .01 seconds has a frequency of ________ Hz.
    100
  31. Galileo's discovery of four moons orbiting ________ provided new support for the ideas of Copernicus.
    Jupiter
  32. How is right ascension similar to longitude on Earth?
    Both measure positions east or west from a fixed point; Greenwich on Earth, the vernal equinox in the sky.
  33. How far above or below the ecliptic can the Sun move?
    The Sun follows the ecliptic eastward across the sky, never leaving it.
  34. What is meant by the astronomical unit?
    The astronomical unit, or AU, is the mean distance between the Earth and Sun
  35. What information about a star can be inferred from its Doppler shift?
    The Doppler shift gives the star's radial velocity, either towards or away from us
  36. What two regions of the electromagnetic spectrum are best utilized by ground-based astronomers, and why?
    The atmosphere is opaque to most radiation except visible and radio waves.
  37. Why was Copernicus' model much simpler than Ptolemy's?
    To duplicate retrograde motion, Copernicus merely had the planets lapping each other as they revolved around the Sun at varying speeds. Ptolemy needed a complex set of deferents and epicycles to explain retrograde motion in his geocentric model.

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Author:
jbz345
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328590
Filename:
Space Science Exam 1 hard
Updated:
2017-02-21 21:27:40
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Space science
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