Chapter 18 Test Review 2 Question Preview (ID: 14802)
Moon Phases
The Sun.
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The phrase “a giant, hot ball of gases held together by gravity” best describes a:
a) planet.
b) meteorite.
c) star.
d) moon.
An electrically-charged mixture of protons and electrons given off by the Sun is known as:
a) a sunspot.
b) a wind sock.
c) a magnetic storm.
d) solar wind.
Areas on the Sun representing cooler areas are called:
a) coronas.
b) auroras
c) sunspots.
d) solar constants.
Which letter of the picutre points to the photosphere?
a) Which letter of the picutre points to the photosphere?
b) D
c) A
d) B
Which letter in the picture points to the region of the sun where nuclear fusion takes place?
a) Which letter in the picture points to the region of the sun where nuclear fusion takes place?
b) D
c) C
d) B
Which letter in the picture points to a solar flare?
a) Which letter in the picture points to a solar flare?
b) D
c) E
d) B
Based on the picture, at which position would a full moon be seen from an observer on Earth?
a) Based on the picture, at which position would a full moon be seen from an observer on Earth?
b) A
c) D
d) E
Based on the picture, at which position would the moon NOT be visible from an observer on Earth at night?
a) Based on the picture, at which position would the moon NOT be visible from an observer on Earth at night?
b) C
c) D
d) E
What astronomical cycle is most directly responsible for one calendar year?
a) The rotation of Earth on its axix
b) The revolution of the Moon around Earth
c) The rotation of the Moon on its axis
d) The revolution of Earth around the Sun
The currently accepted theory about the formation of the Moon says the Moon formed:
a) during a period of very fast Earth rotation, splitting off a piece of Earth.
b) somewhere else and moved close enough to be captured by Earth’s gravity.
c) from smaller chunks of “space junk” when the solar system formed.
d) when Earth collided with a large body that broke off a piece of Earth’s mantle.
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