Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Although electromagnetic waves differ in their wavelengths, they all travel at the
speed of light, which is ____. a. | 300,000 km/s | c. | 100 km/s | b. | 6,000
km/h | d. | 10,000
km/s | | | | |
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2.
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In a
____ telescope, light passes through convex lenses. a. | reflecting | c. | refracting | b. | Hubble | d. | shuttle | | | | |
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3.
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A
rocket is a motor that can burn fuel without requiring ____. a. | water | c. | electricity | b. | air | d. | fire | | | | |
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4.
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The
trouble experienced with the Hubble Space Telescope dealt with ____. a. | its launch into
space | b. | its deployment into space | c. | a mistake made
when the mirror was shaped | d. | its position in the space shuttle | | |
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5.
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The
phase of the Moon that immediately precedes the new Moon is the ____. a. | waxing
crescent | c. | waning
crescent | b. | first quarter | d. | third quarter | | | | |
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6.
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A
____ occurs when the Moon moves directly between the Sun and Earth and throws a shadow on
Earth. a. | solar
eclipse | c. | waning
gibbous | b. | lunar eclipse | d. | waxing gibbous | | | | |
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7.
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The
yearly orbit of Earth around the Sun is called its ____. a. | rotation | c. | revolution | b. | ellipse | d. | tilt | | | | |
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Completion
Complete each sentence or
statement.
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8.
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Reflecting telescopes and refracting telescopes are both ____________________
telescopes.
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9.
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Most
____________________ telescopes used by professional astronomers are housed in
observatories.
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10.
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A(n)
____________________ telescope uses concave mirrors to focus light.
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11.
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In
a(n) ____________________ telescope, light passes through convex lenses.
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12.
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The
twin Keck ____________________ telescopes have segmented mirrors 10 m wide.
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13.
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Hours
of daylight and nighttime are equal during a(n) ____________________.
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14.
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Earth
is ____________________ the Sun in January.
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15.
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Most
of the time, the Sun is north or south of the ____________________.
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16.
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The
Moon revolves around ____________________.
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17.
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Earth
is shaped like a(n) ____________________.
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18.
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The
spinning of Earth on its axis is called ____________________.
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19.
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Earth
____________________ on its axis and ____________________ around the Sun.
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True/False
Indicate whether the sentence or statement is true
or false.
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20.
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A
total solar eclipse can be seen only by people in the area of Earth within the Moon's
umbra.
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21.
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Earth
rotates on its axis about once every year.
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22.
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Night
and day on Earth are caused by Earth's revolution around the Sun.
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23.
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Daylight hours are shorter for the hemisphere that is tilted toward the Sun during the
solstice.
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24.
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A
lunar eclipse occurs when Earth's shadow falls on the Moon.
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25.
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If
you followed a compass needle pointing north, you would end up at the geographical north pole of
Earth.
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