Stars Motion – Astronomy Exam
The key terms of Astronomy Exam include, stars, motion, composition, fusion, Role.
Emission lines are lines that are made when wavelengths of light are given off by cooling gases
False
______________ may explode with such intensity that they become part of other objects
Massive stars
What is the Morgan-Keenan Spectral Classification system?
A method of classifying stars by their temperatures and compositions
Sky maps show celestial spheres, including constellations
True
Which color of flames would represent the HOTTEST temperature emitted from a star?
Blue
The Big Dipper and the Little Dipper are officially named what?
Ursa Major and Ursa Minor
It is hard to see the motion of stars because of their extreme distance from us
True
Gravity makes a nebula more stable in a newly formed star
False
The H-R diagram is a comparison between what?
A star’s absolute magnitude and temperature
Stars emit different light types based on the ______________
Elements that they absorb
Hydrogen atoms do NOT repel each other within a star
True
What is responsible for making stars shine?
Photons
A star has __________________; it appears to be moving across the sky as a night progresses
Apparent motion
What happens during the main-sequence stage of a star’s life?
It cycles, appearing brighter and dimmer in turns
Emission lines are lines that are made when wavelengths of light are given off by cooling gases
False
______________ may explode with such intensity that they become part of other objects
Massive stars
What is the Morgan-Keenan Spectral Classification system?
A method of classifying stars by their temperatures and compositions
Sky maps show celestial spheres, including constellations
True
Which color of flames would represent the HOTTEST temperature emitted from a star?
Blue
The Big Dipper and the Little Dipper are officially named what?
Ursa Major and Ursa Minor
Emission lines are lines that are made when wavelengths of light are given off by cooling gases
False
______________ may explode with such intensity that they become part of other objects
Massive stars
What is the Morgan-Keenan Spectral Classification system?
A method of classifying stars by their temperatures and compositions
Sky maps show celestial spheres, including constellations
True
Which color of flames would represent the HOTTEST temperature emitted from a star?
Blue
The Big Dipper and the Little Dipper are officially named what?
Ursa Major and Ursa Minor
It is hard to see the motion of stars because of their extreme distance from us
True
Gravity makes a nebula more stable in a newly formed star
False
The H-R diagram is a comparison between what?
A star’s absolute magnitude and temperature
Stars emit different light types based on the ______________
Elements that they absorb
Hydrogen atoms do NOT repel each other within a star
True
What is responsible for making stars shine?
Photons