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Satellite Motion and Kepler's Laws Flashcards | StudBud
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Satellite Motion and Kepler's Laws
Satellite Motion and Kepler's Laws
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A #physics #review on #satellite #motion and #kepler's #laws.
Flashcards
28 cards
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Questions
28
Answers
1
You know T and R of Jupiter’s moon Io. Which Kepler's law helps you find the Kepler constant?
Kepler's 1st Law
Kepler's 3rd Law
Kepler's 2nd Law
Kepler's 4th Law
2
These are two fixed points in an ellipse
foci
perigee
apogee
eccentricity
3
The formula you'd use to find the linear speed of Earth around the sun.
2πT
T
2πr / T
2πr
4
A satellite has a TE of 9500MJ with respect to Earth. If its PE is 6000MJ, What's its KE?
15500MJ
3000MJ
3500MJ
Not enough information.
5
Where in an elliptical orbit is the speed of a satellite minimum?
Apogee
Perigee
6
Do all celestial objects have the same Kepler value?
No
Yes
7
What is the period of the Earth as it orbits the sun?
24 hours
365 days
60 seconds
60 minutes
8
Which are the outer planets?
Jupiter, Saturn, Uranus, Neptune
Mercury, Venus, Earth, Mars
9
What is the seventh planet furthest from the sun?
Jupiter
Uranus
Neptune
Saturn
10
Farthest distance away from the sun in an elliptical orbit w/ the sun at one focus.
Perigee
Apogee
Orbital Radius
Foci
11
The closed path taken by a point where the sum of its dist. from 2 fixed points is constant.
Eccentricity
Foci
Ellipse
Circle
12
The sum of PE + KE for a satellite is constant when its in an elliptical orbit.
Yes
KE and PE have nothing to do with Satellite Motion.
No
Not Enough Information
13
What's the mathematical relationship btwn. a planet's orbital period & its dist. from the sun?
The period and the orbital radius aren't related
R3 is proportional to T2
T3 is proportional to R3
T3 is proportional to R2
14
What is Kepler's Second Law?
Period squared is proportional to orbital radius cubed
Planets travel in elliptical orbits with the sun at one foci
A planet sweeps equal areas in equal amts of time
None of the above
15
What is the Kepler constant for all objects orbiting the sun?
3.35 x 108
3 x 108
3 x 1018
3.35 x 1018
16
Where in an elliptical orbit is the speed of a satellite maximum?
Apogee
Perigee
17
What's Kepler's third law state?
Equal Areas in Equal amounts of time
Period squared is proportional to the orbital radius cubed
None of the above
Planets travel in elliptical orbits w/ the sun at one foci.
18
What is escape speed?
Min. speed required for an obj to escape from a planet
The overall speed req. for an obj to escape from a planet
Avg. speed required for an obj to escape from a planet
Max speed required for an obj to escape from a planet
19
Which are the inner planets?
Jupiter, Saturn, Uranus, Neptune
Mercury, Venus, Earth, Mars
20
Does T of a satellite in circular orbit increase or decrease as its dist. from Earth increases?
Decreases
Not enough information
Increases
Stays the same
21
Which planet has the greatest orbital period?
Uranus
Saturn
Jupiter
Neptune
22
Find the speed Earth revolves around the sun. Dist. = 9.4 x 10
11
m and T = 3.15 x 10
7
s
2.98 x 104 m/s
2.98 x 108 m/s
3 x 102 m/s
4 x 103 m/s
23
How does the dir. of a satellite in circular orbit compare w/ the curve of Earth’s surface?
It's perpendicular to the surface
It's not related
It changes
It's parallel with the surface
24
What's the period of the moon as it orbits the Earth?
365 days
42 hrs
24 hrs
27 days
25
Which planet is the closest to the sun?
Venus
Earth
Mars
Mercury
26
What is Kepler's 1st Law also known as?
None of the above
Law of Equal Areas and Equal times
Law of Elliptical Orbits
Law of Harmonies
27
What is a period?
The time required for 1 orbit
The frequency of an object's orbit
The orbital radius
The time required for 5 orbits
28
What is the unit for Kepler's Constant?
No units
m/s
m3/s2
m2/s3
