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The Inner Planets

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Our Solar System is in the Milky Way galaxy.  What type of galaxy is it?
a.
an irregular galaxy
c.
an elliptical galaxy
b.
a spiral galaxy
d.
a classic galaxy
 

 2. 

Who used his telescope to help prove that the Sun was in the center of the Solar System?
a.
Ptolemy
c.
Copernicus
b.
Galileo
d.
Aristotle
 

 3. 

The model of the solar system that says the Earth is in the center.
a.
geocentric
c.
Galilean
b.
heliocentric
d.
Big Bang
 

 4. 

A red shift in the spectrum of the light from an object indicates the object is moving ____ you.
a.
away from
c.
at a right angle from
b.
toward
d.
none of the above
 

 5. 

Rotation causes
a.
a year to pass
c.
day and night
b.
the seasons
d.
eclipses
 

 6. 

The distances to nearby stars can be measured by using ____.
a.
millions of miles
c.
lightyears
b.
temperature
d.
a tape measure
 

 7. 

The model that says the Sun is the center of the Solar System is...
a.
the geocentric model
c.
based upon Ptolemy’s idea
b.
the heliocentric model
d.
what Aristotle believed
 

 8. 

This object is so dense that nothing, including light, can escape its gravity field.
a.
supernova
c.
black hole
b.
white dwarf
d.
supergiant
 

 9. 

The ____ states that around 15 billion years ago, the universe began expanding out of an enormous explosion.
a.
H-R diagram
c.
Big Bang theory
b.
binary star theory
d.
"big crunch" theory
 

 10. 

What contains over 99% of the mass found in the Solar System?
a.
the planets
c.
Earth and the Moon
b.
Jupiter
d.
the Sun
 

 11. 

What are the inner planets?
a.
they are the inner cores of other planets
c.
they are the first five planets
b.
they are Mars, Earth, Venus, and Mercury
d.
they are the planets on the outside of the asteroid belt
 

 12. 

Which is the largest of the inner planets?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 13. 

Which inner planet is almost the same size as Earth?
a.
Pluto
c.
Venus
b.
Mercury
d.
Mars
 

 14. 

Besides Earth, which of the Inner planets has a moon?
a.
Mercury
c.
Venus
b.
Mars
d.
Ceres
 

 15. 

Which of the inner planets is the densest?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 16. 

Which of the inner planets is the hottest?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 17. 

Which of the inner planets has an atmosphere of poisonous gases and acid rain?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 18. 

Which of the inner planets has a surface that is the color of oxidized iron?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 19. 

Which of the inner planets has an orbit of only 88 days?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 20. 

Which of the inner planets has a year that is longer than an Earth year?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 



 
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