WorksheetsPlanetary Motion
Total questions: 25
Worksheet time: 22mins
The spectral lines of planets moving away from Earth
Are redshifted
Are blueshifted
Are only shifted if the planetary motion reaches critical velocity.
The cosmological redshift value (z-value) of a planet moving away from Earth
Is negative
Is zero
Is positive
Light emission spectroscopy and IR spectroscopy data can help us determine
The elemental composition of a planet's atmosphere.
The lateral movement (left and right) of an individual planet.
A galaxy's movement towards or away from Earth's frame of reference.
Two of these.
As a galaxy moves towards us in space, the light waves emitted by that galaxy ____________ and are perceived as _____________.
Compress; redshifted
Stretch; redshifted
Compress; blueshifted
Stretch; blueshifted
Based on the z-values below, which of the planets has the overall fastest velocity.
-0.234
-0.163
0.121
0.181
A spectral line has a resting wavelength of 641 nm. If the z-value of this planet is 0.184, what is the observed wavelength of the spectral line?
823.1 nm
758.9 nm
611.3 nm
722.1 nm
A spectral line at rest is 7500 Angstroms. In motion, it is recorded as 7349 Angstroms. What is this galaxy's z-value?
-0.02
0.13
0.02
-0.13
According to the theory of geocentrism
The moon revolves around the Earth, but the Earth revolves around the Sun.
All planets in the Solar System revolve around the Sun.
Planets move in ellipses, called epicycles.
The Earth is at the center of the universe.
Occultation data helps us understand
Movement towards or away from Earth
A planet's lateral (leftward and rightward) movement in orbit
How long a galaxy spends in elliptical motion
The distance between a planet and a distant star
According to the occultation data, this moving planet took ______ seconds to pass in front of a distant star.
2
5
8
12
According to the occultation graph, does this moving planetary body have an atmosphere?
Yes
No
According to the occultation graph, does this moving planetary body have an atmosphere?
Yes
No
Which line on the ellipse describes the ellipse's semiminor axis?
AS
AB
SD
F1F2
Which line on the ellipse describes the ellipse's major axis?
AB
AS
CD
F2X
If F2X = 14 and F1X = 8, F2C =
6
10
11
13
If F2C = F1C = 20 and F1X = 11, F2X =
19
23
25
29
As a planet's distance to the Sun increases,
Its period decreases
The location of perihelion decreases.
Its velocity decreases
Its period remains constant.
According to Kepler's Third Law, these two planetary values are directly proportional.
The distance to the Sun and the velocity.
The orbital period and the average distance to the Sun.
The orbital period and the eccentricity.
The velocity and the inclination.
According to the chart, which of these planets has the overall slowest velocity?
1
2
3
4
According to the chart, which planets are moving away from Earth?
1 only
3 only
1 and 4
1, 2, and 4
According to Kepler's Second Law, the time it takes to move from position 3 to position 4
Is larger than the time it takes to move from position 1 to position 2
Is the same as the time it takes to move from position 1 to position 2
Is smaller than the time it takes to move from position 1 to position 2
According to the chart, which planet is the closest to Earth's orbit?
Mercury, first pause
Mercury, second pause
Venus, first pause
Venus, second pause
Mars' average distance to the Sun is 1.524 AU. Based on this information, its orbital period is approximately
1.524 years
1.881 years
2.332 years
3.540 years
According to the chart, Venus has a lower
Average distance to the Sun
Orbital period
Cosmological redshift
Eccentricity
According to the diagram, the ellipse with the highest eccentricity value is
I
II
III
IV
