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Earth In Space
Test Description: Astronomy
Instructions: Answer all questions to get your test result.
1) What is the shape of Earth's orbit?
A
eliptical
B
Round
C
slightly elipitcal
D
flat
2) Most objects in the solar system are
A
in regular and predictical motion
B
regular but not prediciticable
C
not in motion
D
motion is not regular or predictiable
3) Which object orbits Earth in both the Earth centered (geocentric) and Sun-centered (heliocentric) motdels of our solar system
A
the Sun
B
Venus
C
The Moon
D
Polaris
4) Compared to the terrestrial planets, the Jovian planets have
A
smaller diameters
B
greater than average densities
C
longer than periods of revolution
D
slower rates of rotation
5) A major belt of asteroids is located between Mars and Jupiter. Waht is the approximate average distance between the Sun and this major asteroid belt?
A
110 million kilometers
B
220 million kilometers
C
390 million kilometers
D
850 million kilometers
6) Scientists believe that a large asteroid struck Earth approximately 65 million years ago. It is often theorized that this event contributed to the
A
evolution of the first birds
B
end of the last ice age
C
breaking up of the supercontinent Pangea
D
extinction of the dinosaurs
7) There is evidence that an asteroid or a comet crashed into the Gulf of Mexico at the end of the Mesozoic Era. Conseqeuences of this impact event may explain the
A
appearance of great coal-forming forests
B
extinction of many kinds of marine animals
C
extinction of ammonoids and dinosaurs
D
appearance of the earliest birds and mammals
8) The Foucault pendulum provides evidence of Earth's
A
revolution around the Sun in a heliocentric solar system
B
revolution around the Sun in a geocentric solar system
C
rotation on its axis in a geocentric solar system
D
rotation on its axis in a heliocentric solar system
9) Comared to the average density of the terrestrial planets, the average density of the Jovian planets is
A
neither
B
more
C
the same
D
less
10) Terrestrial planets move more rapidly in their orbits than the Jovian planets because terrestrial planets are
A
closer to the sun
B
rotating on a tilted axis
C
more massive
D
more dense
*select an answer for all questions
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