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Movements In Space Part 3
Test Description: How do objects move in space?
Instructions: Answer all questions to get your test result.
1) Which of the following space objects is a satellite?
A
the moon only
B
both Earth and the moon
C
Earth only
D
neither Earth nor the moon
2) When a satellite always keeps the same side toward the object it is orbiting, the satellite is
A
tidally locked
B
axially tilted
C
artificial
D
natural
3) Which of the following natural phenomena is partly caused by Earth's revolution around the sun?
A
eclipses, seasons, and solstices
B
solstices only
C
eclipses only
D
seasons only
4) According to Kepler's third law of planetary motion,
A
the cube of a planet's orbital period is directly proportional to the square of its average distance from the sun
B
the square of a planet's orbital period is inversely proportional to the cube of its average distance from the sun
C
the square of a planet's orbital period is directly proportional to the cube of its average distance from the sun
D
the cube of a planet's orbital period is inversely proportional to the square of its average distance from the sun
5) According to Kepler's first law of planetary motion,
A
a planet's orbit is elliptical, with the sun moving back and forth between the ellipse's two foci.
B
a planet's orbit is circular, with the sun at the center of the circle.
C
a planet's orbit is elliptical, with the sun at one focus of the ellipse.
D
a planet's orbit is elliptical, with the sun at the center of the ellipse.
6) _________ observed “orbital anomalies” such as when Mars moved backward in its orbit.
A
Kepler
B
Brahe
C
Newton
D
Galileo
7) ____________ is credited with developing the telescope which magnified objects up to 3X.
A
Kepler
B
Brahe
C
Lippershey
D
Galileo
8) ___________ designed and built his own telescope. This telescope could magnify objects up to 20X.
A
Brahe
B
Kepler
C
Galileo
D
Newton
9) Kepler was Brahe’s assistant and they didn’t get along very well. Because of this, Brahe set Kepler the task of understanding the orbit of _________.
A
Earth
B
Mars
C
Venus
D
Mercury
10) If the planets closer to the sun don't_______________, they'll fall into the sun.
A
move faster
B
maintain a constant speed
C
none of the above
D
move slower
*select an answer for all questions
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