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Astronomy Test 4
Test Description: Space
Instructions: Answer all questions to get your test result.
1) Which statement best explains why the moon has more craters than Earth?
A
Weathering and erosion do not occur on the moon.
B
Earth has never been struck by rapidly moving debris.
C
The moon has a thicker atmosphere.
D
The moon is tectonically active.
2) Light cannot escape the intense gravitational pull of a ____.
A
black hole
B
red giant
C
black dwarf
D
main-sequence star
3) The sun can continue to exist in its present stable state for about another ____.
A
100 billion years
B
15.5 billion years
C
5.5 billion years
D
10 billion years
4) Which planet has a greater mass than the combined mass of all the remaining planets and their moons?
A
Saturn
B
Pluto
C
Jupiter
D
Venus
5) What will be the final stage in the sun’s life cycle?
A
red giant
B
black dwarf
C
white dwarf
D
planetary nebula
6) Most meteor showers are associated with the orbits of ____.
A
planets
B
comets
C
meteorites
D
satellites
7) During the period that the moon’s phases are changing from new to full, the moon is ____.
A
approaching Earth
B
waxing
C
waning
D
exhibiting retrograde motion
8) The relatively small, rocky bodies generally found orbiting between Mars and Jupiter are known as ____.
A
satellites
B
comets
C
asteroids
D
meteoroids
9) The name for the space cloud of gas and dust that will eventually form a star is ____.
A
nebula
B
black hole
C
red giant
D
supernova
10) Seasons are caused by ____.
A
Earth's tilted axis
B
Earth's distance from the sun
C
Earth's rotation
D
precession
*select an answer for all questions
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