
Stellar Properties and Classification

Interactive Video
•
Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary difference between stellar magnitude and luminosity?
Magnitude is measured in watts, while luminosity is a unitless scale.
Magnitude and luminosity are both unitless scales.
Magnitude is a measure of distance, while luminosity is a measure of size.
Magnitude is a unitless scale, while luminosity is measured in watts.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Stefan-Boltzmann's law relate to in terms of a star's properties?
The star's color and distance.
The star's radius and temperature.
The star's mass and volume.
The star's age and brightness.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is emissivity in the context of stars?
A measure of a star's distance from Earth.
A measure of a star's gravitational pull.
A measure of a star's rotational speed.
A measure of a star's ability to emit photons.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is setting the emissivity to one considered an error in the gaseous model of stars?
Because it assumes all stars have the same mass.
Because it ignores the true lattice structure of stars.
Because it assumes all stars are the same color.
Because it assumes all stars are the same size.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the color of a star indicate?
Its distance from Earth.
Its age.
Its apparent temperature.
Its size.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which filter system is most commonly used to determine the color of a star?
RGB scheme.
CMYK scheme.
UVB scheme.
XYZ scheme.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'U' in the UVB filter system stand for?
Ultra
Unique
Universal
Ultraviolet
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