
Stellar Parallax
Presentation
•
Science
•
9th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
25 Slides • 17 Questions
1
2
3
4
Multiple Choice
Stellar parallax is used to measure the
sizes of stars.
distances of stars.
temperature of stars.
radial velocity of stars.
brightness of stars.
5
Multiple Choice
The angle of stellar parallax for a star gets larger as the
distance to the star increases.
size of the star increases.
length of the baseline increases.
wavelength of the light increases.
6
7
Multiple Choice
In a model of the solar system in which the Sun is a marble, what is Earth?
a grain of sand orbiting 1 m away.
a grain of rice orbiting 1 m away
a grain of sand orbiting 270 m away
a grain of rice orbiting 270 m away
8
9
Multiple Choice
Luminosity (_____) is a measure of the total power radiated by a star.
absolute magnitude
absolute brightness
proper magnitude
proper brightness
10
11
12
Multiple Choice
Apparent luminosity is measured using a magnitude scale which is related to
the color of the star.
the distance of the star from Earth.
our perception.
temperature of the star.
13
14
Multiple Select
Which of the following do we need to calculate a star's absolute luminosity?
*There are 2 correct answers.
its apparent magnitude
its proper magnitude
its distance from Earth (us)
its direction from Earth (us)
15
16
Multiple Choice
The color of a star is an indication of the star's
age.
composition.
temperature.
orbit.
17
Drag and Drop
18
19
20
Multiple Choice
Stellar spectra are NOT as informative as blackbody curves.
This statement is FALSE.
This statement is TRUE
21
22
23
Match
Match the following
Radius between 10 and 100 times that of the Sun's
Radius that is MORE than 100 times the Sun's
Radius that is equal to, or LESS than the Sun's
Giant Star
Supergiant Star
Dwarf Star
Giant Star
Supergiant Star
Dwarf Star
24
25
26
Multiple Choice
The darkened curve on the H-R diagram is called the ___ sequence.
color
main
temperature
stellar
27
Multiple Choice
The H-R diagram plots Stellar Luminosity against
star color.
star mass.
surface composition.
surface temperature.
28
29
30
Multiple Choice
What percentage of stars lie on the Main Sequence of the H-R diagram?
9%
10%
90%
100%
31
32
Reorder
Reorder the Spectroscopic Parallax steps in the correct order:
Measure the star's apparent magnitude and spectral class
Use the spectral class to estimate luminosity
Apply the inverse-square law to find distance
33
34
35
Multiple Choice
Visual binary stars can be measured
directly.
indirectly.
when in transit.
when they wobble.
36
37
38
39
Multiple Choice
What is the MAIN determinant of where a star will be on the Main Sequence?
color
orbit
mass
temperature
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42
Drag and Drop
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