What is a stellar spectrum?
Stellar Spectra

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Science
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9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A stellar spectrum is the range of electromagnetic radiation emitted by a star, which can be analyzed to determine its composition, temperature, density, and motion.
2.
FLASHCARD QUESTION
Front
What are the main types of spectra?
Back
The main types of spectra are continuous spectra, emission spectra, and absorption spectra.
3.
FLASHCARD QUESTION
Front
What is the difference between emission and absorption spectra?
Back
Emission spectra are produced when atoms emit light at specific wavelengths, while absorption spectra occur when atoms absorb light at specific wavelengths.
4.
FLASHCARD QUESTION
Front
How do you determine the composition of a star using its spectrum?
Back
By analyzing the absorption lines in a star's spectrum, scientists can identify the elements present based on their unique spectral signatures.
5.
FLASHCARD QUESTION
Front
What is the significance of the Doppler effect in astronomy?
Back
The Doppler effect helps determine the motion of stars and galaxies by observing shifts in the wavelengths of their emitted light.
6.
FLASHCARD QUESTION
Front
What is the relationship between wavelength and frequency?
Back
Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.
7.
FLASHCARD QUESTION
Front
What is the electromagnetic spectrum?
Back
The electromagnetic spectrum is the range of all types of electromagnetic radiation, including visible light, radio waves, X-rays, and gamma rays.
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