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Re: Questions for Astronomy

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1. e       

   2. d

   3. b

   4. b       

   5. b

   6. a

   7. c

   8. d

   9. c

  10. b

  11. d

  12. b

  13. e

  14. a

  15. c

  16. d

  17. b

  18. b

  19. d

  20. c

  21. a

  22. c

  23. c

  24. a

  25. b

  26. e

  27. b

  28. d

  29. a

  30. a

  31. c

  32. c

  33. c

  34. c

  35. c



Sergio wrote:
> 
> Practice Questions for Astronomy I – EXAM 1  (answers in a later post)
> 
>     1. What is the maximum number of planets readily visible to the
> 
>        naked eye on a given night?
> 
>        a.  1
> 
>        b.  2
> 
>        c.  3
> 
>        d.  4
> 
>        e.  5
> 
>     2. Planets
> 
>        a.  move rapidly across the sky relative to the stars.
> 
>        b.  are stationary relative to the stars.
> 
>        c.  all move at the same rate relative to the stars.
> 
>        d.  move slowly relative to the stars.
> 
>        e.  can appear anywhere in the sky.
> 
>     3. The Moon
> 
>        a.  may appear anywhere in the sky.
> 
>        b.  always appears within a few degrees of the zodiac.
> 
>        c.  always appears within a few degrees of the celestial
> 
>            equator.
> 
>        d.  generally appears opposite the Sun.
> 
>     4. The most readily observed motion of a celestial object is
> 
>        produced by
> 
>        a.  the motion of the planets across the sky.
> 
>        b.  the rotation of the Earth.
> 
>        c.  the revolution of the Earth.
> 
>        d.  the motion of the Sun around the galaxy.
> 
>     5. An astronomical unit is the
> 
>        a.  distance from the Earth to the Moon.
> 
>        b.  distance from the Earth to the Sun.
> 
>        c.  distance from the Earth to the nearest star.
> 
>        d.  distance light travels in one year.
> 
>        e.  circumference of the Earth.
> 
>     6. Which of the following statements about planets is FALSE?
> 
>        a.  none are visible to observers on the Earth
> 
>        b.  they move relative to the stars
> 
>        c.  they are found along the zodiac
> 
>        d.  they do not twinkle as stars do
> 
>     7. Where must an observer be located on the Earth to view the
> 
>        entire sky over the course of a year?
> 
>        a.  the north pole
> 
>        b.  the south pole
> 
>        c.  the equator
> 
>        d.  anywhere on the Earth
> 
>     8. Diurnal motions are caused by
> 
>        a.  the rapid rotations of heavenly bodies.
> 
>        b.  the motion of the Moon about the Earth.
> 
>        c.  the motion of the Sun about the Earth.
> 
>        d.  the motion of the Earth on its rotation axis.
> 
>        e.  the precession of the Earth's axis.
> 
>     9. Suppose you are on a strange planet. Since you have had an
> 
>        astronomy class at the university, you are aware of the daily
> 
>        motion of stars about a fixed point in the sky. Furthermore,
> 
>        you notice that this fixed point is 30 degrees above the
> 
>        horizon. You then deduce that your latitude on this planet is
> 
>        a.  0ø.
> 
>        b.  15ø.
> 
>        c.  30ø.
> 
>        d.  45ø.
> 
>        e.  60ø.
> 
>    10. Precession is
> 
>        a.  the accuracy with which numbers are given in astronomy.
> 
>        b.  the slow motion of the Earth's rotation axis on the
> 
>            celestial sphere.
> 
>        c.  the apparent backward motion of planets on the celestial
> 
>            sphere.
> 
>        d.  the daily eastward motion of the Sun around the celestial
> 
>            sphere.
> 
>    11. Planet X has its rotation axis perpendicular to its orbital
> 
>        plane. Its seasons would be
> 
>        a.  shorter than those on Earth.
> 
>        b.  longer than those on Earth.
> 
>        c.  the same as those on Earth.
> 
>        d.  constant.
> 
>    12. If a solar eclipse occured 2 weeks ago, what would be the phase
> 
>        of the Moon today?
> 
>        a.  first quarter
> 
>        b.  full
> 
>        c.  third quarter
> 
>        d.  new
> 
>        e.  waxing crescent
> 
>    13. Eclipses do not occur each month because
> 
>        a.  the Moon is always in the ecliptic.
> 
>        b.  the Moon is never in the ecliptic.
> 
>        c.  the Earth's axis is tilted to the ecliptic.
> 
>        d.  the Moon's orbit is in the ecliptic.
> 
>        e.  the Moon's orbit is not in the ecliptic.
> 
>    14. In order for a solar eclipse to occur, the Moon must be
> 
>        a.  near new Moon.
> 
>        b.  near first or last quarter.
> 
>        c.  high in the sky.
> 
>        d.  near full Moon.
> 
>        e.  in a retrograde loop.
> 
>    15. The length of the tropical year is
> 
>        a.  equal to the length of the Earth's sidereal period.
> 
>        b.  equal to the length of the Earth's synodic period.
> 
>        c.  the time interval from one vernal equinox to the next.
> 
>        d.  twelve lunar months.
> 
>    16. If the Moon did NOT rotate we would observe
> 
>        a.  the same as we now observe.
> 
>        b.  only the lunar back side.
> 
>        c.  the lunar north polar region.
> 
>        d.  both the front and back side of the Moon.
> 
>    17. Aristotle
> 
>        a.  was the first great observational astronomer.
> 
>        b.  stated physical laws and then attempted to use them to
> 
>            explain how the universe works.
> 
>        c.  discovered the first four elements in the periodic table of
> 
>            elements.
> 
>        d.  taught Plato the basic laws of nature.
> 
>    18. Ptolemy
> 
>        a.  invented calculus and used it to predict the positions of
> 
>            the planets at any given time.
> 
>        b.  wrote books summarizing the astronomical knowledge of
> 
>            earlier cultures.
> 
>        c.  was the first of the great Greek astronomers.
> 
>        d.  was the first to detect stellar parallax.
> 
>    19. The Almagest was written by
> 
>        a.  Plato
> 
>        b.  Aristotle
> 
>        c.  Hipparchus
> 
>        d.  Ptolemy
> 
>        e.  Pythagorus
> 
>    20. The reason Copernicus became a "heliocentrist" was that
> 
>        a.  the evidence was overwhelmingly strong.
> 
>        b.  the evidence was weak but gaining strength.
> 
>        c.  it was philosophically pleasing to him.
> 
>        d.  the laws of physics as then understood indicated a
> 
>            heliocentric universe.
> 
>    21. Which one of the following statements about the Copernican
> 
>        model is FALSE?
> 
>        a.  it was more accurate than the Ptolemaic system in
> 
>            predicting planetary motions
> 
>        b.  relative planetary distances could be deduced from it
> 
>        c.  relative planetary speeds could be determined from it
> 
>        d.  retrograde motion could be easily explained by it
> 
>        e.  none: all of the above statements are true
> 
>    22. Tycho Brahe's principal contribution to astronomy was
> 
>        a.  his noble blood.
> 
>        b.  his suggested model for the solar system (which had a fixed
> 
>            Earth with the Sun revolving about it but the rest of the
> 
>            planets revolving about the Sun).
> 
>        c.  the accuracy of his observations and the completeness of
> 
>            his records.
> 
>        d.  his choice of Galileo as an assistant.
> 
>    23. Which of the following is a statement of Kepler's first law?
> 
>        a.  planets move in perfect circles with the Sun at the center
> 
>        b.  planets move along an elliptical path with the Sun at the
> 
>            center
> 
>        c.  planets move along an elliptical path with the Sun at one
> 
>            of the foci
> 
>        d.  planets move along an elliptical path with the Earth at one
> 
>            of the foci
> 
>    24. In simple language, Kepler's second law means that
> 
>        a.  a planet moves more rapidly when near the Sun than when
> 
>            farther away.
> 
>        b.  planets close to the Sun have shorter periods than those
> 
>            farther away.
> 
>        c.  the Sun is at the center of planetary orbits.
> 
>        d.  slowly moving planets are close to the Sun.
> 
>    25. In non-mathematical terms, Kepler's third law says that
> 
>        a.  a planet moves more rapidly when near the Sun than when
> 
>            farther away.
> 
>        b.  planets close to the Sun have shorter periods than those
> 
>            farther away.
> 
>        c.  the Sun is at the center of planetary orbits.
> 
>        d.  slowly moving planets are close to the Sun.
> 
>    26. Who is often considered to be the first truly modern scientist?
> 
>        a.  Brahe
> 
>        b.  Kepler
> 
>        c.  Copernicus
> 
>        d.  Aristotle
> 
>        e.  Galileo
> 
> 27. Which of the following did Galileo NOT observe?
> 
>        a.  sunspots
> 
>        b.  the moons of Mars
> 
>        c.  the phases of Venus
> 
>        d.  the craters on the Moon
> 
>    28. Which of the following has the greatest mass?
> 
>        a.  100 lbs of goose feathers
> 
>        b.  100 lbs of lead
> 
>        c.  a 100 lb person
> 
>        d.  they all have the same mass
> 
>    29. Acceleration is defined as
> 
>        a.  the rate of change of velocity.
> 
>        b.  the rate of change of position.
> 
>        c.  the rate of change of distance.
> 
>        d.  how fast an object moves.
> 
>        e.  how fast an object changes position.
> 
>    30. Which of the following would NOT occur if the Earth's mass were
> 
>        doubled? (NOTE: the radius remains the same)
> 
>        a.  your mass would double
> 
>        b.  your weight would double
> 
>        c.  the surface gravity would double
> 
>        d.  the escape velocity would increase
> 
>    31. While on the Moon, the Apollo astronauts demonstrated Galileo's
> 
>        experiment at the Leaning Tower of Pisa by dropping a feather
> 
>        and a hammer. They reached the ground at the same time because
> 
>        a.  the force of gravity is larger on the feathers than on the
> 
>            hammer.
> 
>        b.  the force of gravity has no effect on either object.
> 
>        c.  the acceleration of each object is the same.
> 
>        d.  the astronauts showed Galileo's experiment to be false.
> 
>    32. Take three identical bricks; strap two of them together. Which
> 
>        statement is true?
> 
>        a.  the combined bricks, when dropped, will fall twice as fast
> 
>            as the single brick
> 
>        b.  the combined bricks, when dropped, will fall four times as
> 
>            fast as the single brick due to the inverse square law of
> 
>            gravity
> 
>        c.  the gravitational force between the Earth and the combined
> 
>            bricks is twice as strong as the gravitational force
> 
>            between the Earth and the single brick
> 
>        d.  the gravitational force between the Earth and the combined
> 
>            bricks is the same as the gravitational force between the
> 
>            Earth and the single brick
> 
>    33. If in a violent moment you kick a wall, your foot will hurt.
> 
>        This is best explained by
> 
>        a.  Newton's first law of motion.
> 
>        b.  Newton's second law of motion.
> 
>        c.  Newton's third law of motion.
> 
>        d.  the universal law of gravity.
> 
>    34. Which of the following statements about the Earth's orbit is
> 
>        FALSE?
> 
>        a.  The orbit is elliptical
> 
>        b.  The average distance to between the Earth and the Sun is 1
> 
>            A. U.
> 
>        c.  The orbital velocity is constant
> 
>        d.  the period of the orbit is 1 year
> 
>    35. The escape velocity from a planet's surface depends upon
> 
>        a.  your mass and the planet's mass.
> 
>        b.  your mass and the planet's radius.
> 
>        c.  the planet's mass and radius.
> 
>        d.  your mass and the planets orbital period.
> 
>        e.  the planet's mass and orbital period.

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Questions for Astronomy Sergio <invalid@invalid.com> - 2016-07-21 22:07 -0500
  Re: Questions for Astronomy Sylvia Else <sylvia@not.at.this.address> - 2016-07-22 13:26 +1000
    Re: Questions for Astronomy Sergio <invalid@invalid.com> - 2016-07-22 12:45 -0500
      Re: Questions for Astronomy jimp@specsol.spam.sux.com - 2016-07-22 18:24 +0000
        Re: Questions for Astronomy Sergio <invalid@invalid.com> - 2016-07-22 15:39 -0500
          Re: Questions for Astronomy jimp@specsol.spam.sux.com - 2016-07-22 20:58 +0000
  Re: Questions for Astronomy The Starmaker <starmaker@ix.netcom.com> - 2016-07-22 00:00 -0700
    Re: Questions for Astronomy Sergio <invalid@invalid.com> - 2016-07-22 13:08 -0500
      Re: Questions for Astronomy The Starmaker <starmaker@ix.netcom.com> - 2016-07-22 12:37 -0700
        Re: Questions for Astronomy Sergio <invalid@invalid.com> - 2016-07-22 15:36 -0500
          Re: Questions for Astronomy The Starmaker <starmaker@ix.netcom.com> - 2016-07-22 13:43 -0700
    Re: Questions for Astronomy The Starmaker <starmaker@ix.netcom.com> - 2016-07-22 17:51 -0700
  Re: Questions for Astronomy Double-A <double-a3@hush.com> - 2016-07-22 14:09 -0700
    Re: Questions for Astronomy "hanson" <hanson@quick.net> - 2016-07-22 14:52 -0700

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