Components of the Universe
Galaxy Types
Life Cycle of Stars
HR Diagrams
Micellaneous
100
What is the largest component within the universe?
A Galaxy
100
What are the three types of galaxies?
Spiral, elliptical, irregular
100
What is the name of the place where all stars form?
Nebulae
100
What color are the coolest stars on the HR diagram?
Red
100

What two forces are responsible for the movement of the components of the universe?

Gravity and inertia

200
If a star is more massive, then it would appear __________ in the sky.
Brighter
200
What type of galaxy is ours? Include the name of our galaxy.
The Milky Way is a spiral galaxy.
200
What quality of a star will determine it's life cycle?
It's mass
200
Where are the coolest stars found on the HR Diagram? The hottest?
Coolest- Right Hottest- Left
200

What two factors affect the amount of gravity an object has?

Mass and distance

300

Put the components of the universe below from smallest to largest?

Solar systems, planets, universe, stars, galaxies

Planets, stars, solar systems, galaxies, universe

300
Where is our solar system within the Milky Way?
On one of the outer spiral arm (Orion's Arm)
300
Our sun is a medium-low mass star, what will be it's life cycle from start to finish?
Nebulae-Main sequence- Red giant-Red Supergiant-White dwarf- Black dwarf
300
What does the word "Dim" mean and where can I find dim stars on the HR Diagram?
Not bright. They are found towards the bottom of the HR Diagram
300

Order these components by size, smallest to largest.

Moon, comet, universe, planet, star, galaxy, nebula

Comet, moon, planet, star, nebula, galaxy, universe

400
What is the region in space called that's so dense not even light can escape it?
A black hole
400
What measurement could you measure a galaxy in?
Light years
400

What will be the life cycle of a star the has high mass but is not the most massive of stars?

Nebulae-main sequence star- red giant- red supergiant- supernova- neutron star

400
Looking at the HR diagram what star is the giant with the highest surface temperature?
Capella
400

Since everything has been expanding for billions of years, everything is very far away from everything else, so we use this to measure distance in space.

Light years

500

What process happens in the core of a star that is the energy source for the star?

Fusion of hydrogen atoms together to make helium.

500
Which galaxies hold the old and dying stars and have little gas or dust?
Elliptical galaxies
500
Why do they call star life cycle a "cycle"?
When a star supernovas, its gas and dust go back out into the universe and could later form a nebulae from which a new star would be born.
500

What are all of the words that you 'could' see on the Y-axis of an HR Diagram and what do they all mean?

Luminosity, Brightness, Magnitude:: How shiny a star really

500

Where does the inertia of an object come from?

It's mass and speed

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