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- 1. Multiple Choice
Since Earth has an elliptical orbit, the...
Distance between the Sun and the Earth varies
Distance between the Sun and the other focus varies
Distance between Earth’s aphelion and perihelion varies
Length of Earth’s period of revolution varies
- 2. Drop Down
The orbit of a comet is shown below. At which point in the orbit would the comet's speed be the fastest? (a)
ABCDE - 3. Multiple Choice
The table below illustrates data on Kepler's 3rd Law for the first 6 planets. Use it to estimate the orbital period of Asteroid Baade which has an orbital radius (a) of 2.55 AU.
19.2 years
4.07 years
0.77 years
50.2 years
1.67 years
- 4. Multiple Choice
The orbit of a comet around the sun is shown below. If the comet takes 2 years to move from point 1 to point 2 and 1 year to move from point 3 to point 4, then the green area must be _______ the red area.
larger than
smaller than
equal to
- 5. Multiple Choice
Which of the graphs best represents orbital velocity versus distance from the sun for planets?
A
B
C
D
- 6. Multiple Choice
What happens to the period of orbit as distance from the star increases?
Increases
Decreases
Stays the same
- 7. Multiple ChoiceWhich diagram shows a planet with the least eccentric orbit?1234
- 8. Multiple Choice
As distance between the foci increases the eccentricity...
increases
decreases
remains the same
decreases than increases
- 9. Multiple Choice
Where is the planet moving faster?
Position A to BPosition B to CPosition H to IPosition I to J - 10. Multiple ChoiceWhat is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?The area between A, B and the Sun is the largest.The area between H, I and the Sun is the largestBoth areas are equal in sizeThere is not enough information to determine the areas
- 11. Multiple Choice
Which statement best describes Kepler’s 2nd Law of Planetary Motion?
Planets revolve around the sun over equal areas in equal time intervals.
Planetary orbits are in the shape of an ellipse.
A planet’s orbital period is proportionate to its distance from the sun.
- 12. Multiple Choice
Which statement best describes Kepler’s 3rd Law of Planetary Motion?
The closer a planet is to the sun, the shorter the orbital period is.
Planetary orbits are in the shape of an ellipse
The closer a planet is to its star, the lesser its orbital velocity.
- 13. Multiple Choice
A planet moving counterclockwise in its orbit will be increasing speed at position _?_.
P1
P2
P3
P4
- 14. Multiple Choice
Kepler’s first law states that
the sun is the center of the solar system.
planets orbit the sun in elliptical orbits, with the sun located at one focus.
planets orbit the sun in circular orbits, with the sun located at the center.
gravity provides the force that holds the planets in orbit about the sun.
- 15. Multiple Choice
According to Kepler's 3rd law, the square of the time it takes a planet to orbit (T) is directly related to the cube of half the distance across the orbital ellipse (a). This means the further away from the sun a planet orbits, _?_.
the larger the constant k is.
the smaller the constant k is.
the longer the orbital period is.
the shorter the orbital period is.
- 16. Labeling
On the diagram, label where the planet is moving the fastest, second fastest, and slowest.
answer choicesfastest
second fastest
slowest
- 17. Multiple ChoiceThis model best illustrates which of the following laws?Kepler's 2nd Law of MotionNewton's 1st Law of MotionKepler's 3rd Law of MotionNewton's Law of Universal Gravitation
- 18. Multiple Choice
What is the eccentricity of this ellipse?
3.00
4.00
.25
0.33
- 19. Multiple Choice
Which object would have an eccentricity closest to 1?
Red
Green
Blue
Yellow
Pink
- 20. Multiple Choice
How does Venus' eccentricity (0.007) compare to Mercury's (0.206)?
Venus is more eccentric
Mercury is more eccentric
- 21. Multiple Choice
In the figure shown, what is the point “B” called?
Perihelion
Aphelion
Foci
Center
- Answer choicesTagsAnswer choicesTags