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WorksheetsLight Spectra and what it can tell us
Total questions: 12
Worksheet time: 6mins
What is the correct order of the visible light spectrum starting with the longer wavelength?
Red, yellow, orange, blue, violet, indigo
Violet, indigo, blue, green, yellow, orange, red
Green, yellow, blue, indigo, red, orange
Red, orange, yellow, green, blue, indigo, violet
Which color has the longest wavelength?
Yellow
Red
Green
Purple
(or brightness)
What is found on the Y axis of an H-R diagram
Luminosity
(or brightness)
Temperature
Star Size
Distance
The luminosity value is assigned to a star based on...
How hot it is
Relative brightness compared to our Sun
Distance from Earth
Relative Temperature compared to our Sun
Which category is our Sun located in?
White Dwarfs
Supergiants
Main Sequence
Giants
Compared to the rest of the stars, our sun is considered...
Extremely Large and Cold
Small with a medium temperature
Medium size with medium temperature
What effect does fast rotational velocity of a star have on the spectrum produced?
The Spectra is spread out
The Spectra is narrower
The Spectra is blurred
The Spectra is shifted toward the red end of the spectrum
What effect does fast Star translational velocity have on the spectra observed?
Spectra is missing thin lines due to reemission from certain elements
Spectra is less bright
Spectra is blurred
Spectra produced appears to be shifted toward either the Blue or Red ends of the Spectrum
What evidence indicates the density of a star?
Blurring of absorbtion lines
Spreading of the Spectrum
Temperature of star
Size of star
