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Solar System & Orbits Review Flashcards | StudBud
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Solar System & Orbits Review
Solar System & Orbits Review
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1
List the 3 planets and Earth's Moon in order of increasing equatorial diameter:
Earth's Moon, Mercury, Mars, Venus
Mars, Mercury, Earth, Earth's Moon
Earth's Moon, Earth, Mars, Mercury
Mercury, Mars, Earth's Moon, Earth
2
How do Jupiter's density and period of rotation compare to Earth's?
Jupiter is more dense and has a longer period of rotation.
Jupiter is less dense and has a longer period of rotation.
Jupiter is less dense and has a shorter period of rotation.
Jupiter is more dense and has a shorter period of rotation.
3
Compare the eccentricity of Halley's Comet to the eccentricity of Saturn and Jupiter.
Their eccentricities are the same.
Saturn is more eccentric than Jupiter/Halley's Comet
Halley's Comet is more eccentric than Saturn/Jupiter.
Jupiter and Saturn are more eccentric than Halley's Comet.
4
Compared to Jupiter and Saturn, Venus and Mars have greater:
periods of revolution
orbital velocities
mean distances from the Sun
equatorial diameters
5
Why does the diameter of the Sun appear to be greater during our winter than our summer?
Earth is closer to the Sun during the winter
The Northern Hemisphere is tilted towards the Sun in winter
Earth is revolving around the Sun faster during winter
The Sun expands during winter
6
The asteroid belt is located btwn Mars&Jupiter. How far is the Sun from the asteroid belt?
850 million km
390 million km
110 million km
220 million km
7
Which planet has an orbital eccentricity most like the orbital eccentricity of the Moon?
Venus
Mercury
Saturn
Mars
8
Distance F
1
- F
2
is 42,000 km. Distance
A
-
C
is 768,000 km. What is the eccentricity?
0.94
0.055
0.81
0.18
9
Thanksgiving in the United States was started in which city?
Lincoln, Nebraska
Elizabeth, West Virginia
Plymouth, Massachusetts
Williamsburg, Virginia
10
Which member of the solar system has an equatorial diameter of 3.48 x 10
3
km?
Earth
Mercury
Moon
Sun
11
When viewed from the planet, the moon has the greatest apparent diameter at point
D
C
A
B
12
Planet
A
has a greater distance from the Sun than Planet
B
. Which statement is true?
Planet A's speed of rotation is greater.
Planet A's day is longer.
Planet A's revolution period is longer.
Planet A is larger.
13
This diagram represents our solar system. It is best classified as:
heliocentric, with elliptical orbits
geocentric, with elliptical orbits
heliocentric, with circular orbits
geocentric, with circular orbits
14
The diagram shows Earth's orbital path around the Sun. Which values are equal within the orbit?
The shaded sections of the diagram are equal in area.
The gravitational force is the same at points B and C.
The orbital velocity of Earth at A = orbital velocity at C.
The distance from the Sun to the Earth is the same at A & D.
15
Which planet would float if it could be placed in water?
Earth
Pluto
Saturn
Mercury
16
In addition to Earth, which planets are represented by the diagram?
Saturn and Pluto
Uranus and Neptune
Jupiter and Mars
Mercury and Venus
17
At which of the points in its orbit does Halley's Comet have the greatest orbital velocity?
B
D
A
C
18
Earth's orbit around the Sun is best described as
a slightly eccentric ellipse
a very eccentric ellipse
an oblate spheroid
a perfect circle
19
As the moon moves from
D
to
B
, the force of gravitational attraction btwn the moon & the planet
decreases only
decreases, then increases
increases only
increases, then decreases
20
Terrestrial planets move more rapidly in their orbits than the Jovian planets because they are
rotating on a tilted axis
more massive
more dense
closer to the Sun
21
The Sun is located at 1 focal point. Which letter is the location of the 2nd focal point?
C
A
D
B
