Academic Practice #3

50 Questions | Total Attempts: 19

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Academic Practice #3

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Questions and Answers
  • 1. 
    The moon's diameter is 2160 miles, roughly ________ percent of that of the earth's.
    • A. 

      50

    • B. 

      30

    • C. 

      10

    • D. 

      15

  • 2. 
    Some smooth plains on the moon's surface are old craters filled with lava or volcanic ash.  These are known as 
    • A. 

      Oceans.

    • B. 

      Mascons

    • C. 

      Lake beds

    • D. 

      Maria

  • 3. 
    Phases of the moon are caused by
    • A. 

      Light reflected off the earth

    • B. 

      relative positions of the sun, earth and moon.

    • C. 

      the moons motion in its orbit about the earth.

    • D. 

      Both light reflected off the earth and the moons in its orbit are correct.

  • 4. 
    Moonquakes... 
    • A. 

      Cause the moon to vibrate for extended periods

    • B. 

      Have severe tremors lasting only a few seconds.

    • C. 

      Are non-existent.

    • D. 

      Are new to this century

  • 5. 
    A ________________ occurs when the moon passes through the shadow of the earth. 
    • A. 

      Lunar eclipse

    • B. 

      Waning

    • C. 

      Solar eclipse

    • D. 

      Blackout

  • 6. 
    One cause of erosion on the Moon is from crashing meteorites. These crashing meteorites spray the surface with broken rocks called...
    • A. 

      Mascons

    • B. 

      Tektites

    • C. 

      Breccia

    • D. 

      Atomic Particles

  • 7. 
    The Moon has no atmosphere.  Thus there is 
    • A. 

      A gradual daily temperature change from hot to cold

    • B. 

      No daily temperature change from hot to cold.

    • C. 

      a drastic change in daily temperature (243 degrees F to -261 degrees F).

    • D. 

      No daily temperature change

  • 8. 
    The igneous rocks that are on the surface of the Moon were formed by
    • A. 

      solidification of molten magma.

    • B. 

      Magnesium and crystals

    • C. 

      hot platinum.

    • D. 

      Carbon

  • 9. 
    Some scientists believe it possible that the Moon 
    • A. 

      Has an exterior of hot molten rock.

    • B. 

      Has a cold interior core.

    • C. 

      Has a hot exterior shell

    • D. 

      has deposits of water ice.

  • 10. 
    The surface of the Moon is covered by breccia.  There is also a layer of dust made up of tiny pieces of glass.  What is this glass called? 
    • A. 

      Lithosphere

    • B. 

      Tektites

    • C. 

      Mare

    • D. 

      Macsons

  • 11. 
    When the visible moon begins to get smaller after the full moon, the moon is said to
    • A. 

      Wax

    • B. 

      Phase

    • C. 

      Shrink

    • D. 

      Wane

  • 12. 
    At new moon what is the alignment of the Earth, Moon, and Sun? 
    • A. 

      The Sun is between the Earth and the Moon

    • B. 

      The Earth is between the Sun and the Moon

    • C. 

      The Moon is between the Earth and the Sun

    • D. 

      None of the answers are correct

  • 13. 
    Sunspots have been known to last as long as 
    • A. 

      A year and a half

    • B. 

      A day

    • C. 

      A week

    • D. 

      A month

  • 14. 
    Earth receives less than one two-billionth (1/2,000,000,000) of the Sun's energy. The remainder of the Sun's energy
    • A. 

      Is used to form natural satellites

    • B. 

      Is lost in space

    • C. 

      Produces hydrogen

    • D. 

      Is trapped inside the Sun.

  • 15. 
    There are huge numbers of charged particles which have been trapped by the Earth's magnetic field.  These particles circle the earth in four doughnut shaped regions.  Two are? 
    • A. 

      Inner and Outer Van Allen radiation belts

    • B. 

      magnetopause and repelopause

    • C. 

      Starfish ring and Oyster ring

    • D. 

      Stable and unstable trapping region

  • 16. 
    The average distance from the Sun to the Earth, about 93 million miles, is called one
    • A. 

      Solar distance unit

    • B. 

      Parsec

    • C. 

      Astronomical unit

    • D. 

      Light year

  • 17. 
    Which is the outermost layer of the sun's atmosphere? 
    • A. 

      Core

    • B. 

      Photosphere

    • C. 

      Chromosphere

    • D. 

      Corona

  • 18. 
    Sunspots are visible because 
    • A. 

      as they cool they appear lighter than the hotter environment behind them.

    • B. 

      as they cool they appear darker than the hotter environment behind them.

    • C. 

      as they surface they take on a bright white color

    • D. 

      As they surface their temperatures rise to one million degrees + they take on a bright orange appearance.

  • 19. 
    The sun's energy passes through space by the process of 
    • A. 

      Radiation

    • B. 

      Time

    • C. 

      Fusion

    • D. 

      Fusion fields

  • 20. 
    The light giving "surface" of the sun is called the 
    • A. 

      Photosphere

    • B. 

      Magnetosphere

    • C. 

      Coronagraph

    • D. 

      Chromosphere

  • 21. 
    The lowest layer of the sun's atmosphere is called the 
    • A. 

      Photosphere

    • B. 

      Magnetosphere

    • C. 

      Chromosphere

    • D. 

      Coronasphere

  • 22. 
    Electrically charged sunspot gases which escape the sun's chromosphere and enter the earth's atmosphere near the magnetic north pole cause the 
    • A. 

      Auroras Borealis.

    • B. 

      corona of the sun to be visible.

    • C. 

      sun to increase in luminosity.

    • D. 

      Eclipse of the sun in the polar regions

  • 23. 
    A total eclipse of the sun is called a 
    • A. 

      Lunar eclipse

    • B. 

      solar eclipse

    • C. 

      Magnetic eclipse.

    • D. 

      Sunspot eclipse

  • 24. 
    What is it called when hydrogen gases are transformed into helium? 
    • A. 

      Solar fusion

    • B. 

      Fission process

    • C. 

      Nuclear fusion

    • D. 

      Hydrogen process

  • 25. 
    The closest star to the earth is 
    • A. 

      The Sun

    • B. 

      Alpha Centauri.

    • C. 

      The Andromeda galaxy

    • D. 

      Polaris, the North Star.

  • 26. 
    The time it takes a planet to go around the Sun is
    • A. 

      Orbital period.

    • B. 

      Retrograde Motion.

    • C. 

      Eliptical movement.

    • D. 

      Axis rotation

  • 27. 
    • A. 

      Earth

    • B. 

      Mar

    • C. 

      Venus

    • D. 

      Mercury

  • 28. 
    • A. 

      Saturn

    • B. 

      Jupiter

    • C. 

      Uranus

    • D. 

      Neptune

  • 29. 
    • A. 

      Jupiter

    • B. 

      Neptune

    • C. 

      Saturn

    • D. 

      Pluto

  • 30. 
    • A. 

      Earth

    • B. 

      Uranus

    • C. 

      Jupiter

    • D. 

      Saturn

  • 31. 
    • A. 

      Pluto, Venus, Jupiter, and Mars

    • B. 

      Mars, Saturn, Venus, and Jupiter

    • C. 

      Mercury, Mars, Saturn, and Pluto

    • D. 

      Saturn, Jupiter, Mars, and Uranus

  • 32. 
    The planet which can be seen as a bright early evening or morning star because of its orbit between the Earth and the Sun is
    • A. 

      Venus

    • B. 

      Mercury

    • C. 

      Mars

    • D. 

      Jupiter

  • 33. 
    • A. 

      Venus

    • B. 

      Earth

    • C. 

      Mercury

    • D. 

      Mars

  • 34. 
    • A. 

      Earth

    • B. 

      Venus

    • C. 

      Mercury

    • D. 

      Pluto

  • 35. 
    • A. 

      Mercury and Venus

    • B. 

      Mercury and Pluto

    • C. 

      Venus and Pluto

    • D. 

      Jupiter and Saturn

  • 36. 
    • A. 

      Pluto

    • B. 

      Venus

    • C. 

      Mercury

    • D. 

      Jupiter

  • 37. 
    About three-fourths of which planet's surface is covered by iron oxide dust?
    • A. 

      Mars

    • B. 

      Saturn

    • C. 

      Pluto

    • D. 

      Jupiter

  • 38. 
    The term usually used to refer to the apparent backward motion of a planet in its orbit (as seen on earth) is
    • A. 

      Ephemeris.

    • B. 

      Retrograde.

    • C. 

      Heliocentric path.

    • D. 

      Almanac

  • 39. 
    • A. 

      Jupiter

    • B. 

      Mercury

    • C. 

      Saturn

    • D. 

      Pluto

  • 40. 
    • A. 

      Jupiter

    • B. 

      Mars

    • C. 

      Neptune

    • D. 

      Saturn

  • 41. 
    The exploration of this planet by the Pioneer and Voyager spacecraft is considered to be among the greatest scientific achievements of the twentieth century.
    • A. 

      Neptune

    • B. 

      Jupiter

    • C. 

      Saturn

    • D. 

      Uranus

  • 42. 
    • A. 

      Neptune and Pluto

    • B. 

      Mercury and Venus

    • C. 

      Venus and Mars

    • D. 

      Uranus and Neptune

  • 43. 
    Planets orbit the sun in a(n)  _______ path.
    • A. 

      Orbital

    • B. 

      Elliptical

    • C. 

      Arched

    • D. 

      Linear

  • 44. 
    The gravitational force of the ________ keeps planets in their orbits.
    • A. 

      Sun

    • B. 

      Moon

    • C. 

      Earth

    • D. 

      Stars

  • 45. 
    A chart that serves as a timetable for movement and location of planets is known as a(n) ___________.
    • A. 

      Almanac

    • B. 

      Star Chart

    • C. 

      Atlas

    • D. 

      Celestial Map

  • 46. 
    Astronomers believe that meteoroids originated from the fragments of a shattered planet within the
    • A. 

      Meteor belts

    • B. 

      Sun zones.

    • C. 

      Auroias zones.

    • D. 

      Asteroid belt.

  • 47. 
    • A. 

      Asteroids

    • B. 

      Comets

    • C. 

      Aerolites

    • D. 

      Tektites

  • 48. 
    • A. 

      Asteroids

    • B. 

      Comets

    • C. 

      Meteoroids

    • D. 

      Areolites

  • 49. 
    Minor planets revolving around the Sun, mostly between Mars and Jupiter, are called
    • A. 

      Comets

    • B. 

      An Asteroid Belt

    • C. 

      Tektites

    • D. 

      Asteroids

  • 50. 
    Comets are believed to be composed of
    • A. 

      Hydrogen and oxygen.

    • B. 

      Frozen gases and dust.

    • C. 

      nitrogen and sodium.

    • D. 

      frozen dust and carbon.