Stars Motion – Astronomy Exam

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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


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