What is another name for a G-type main sequence star?
A yellow Dwarf Star.
100
What is a red giant star?
The last stage of stellar evolution
what a yellow star turns into
100
What is light?
A natural agent that make things visible
100
Why does outer space look black?
The absence if light.
100
What shape are black holes?
Spheres
200
What happens to the star as years go by?
It gets brighter
200
About how big can a red giant star be?
100 million or billion km
200
What is light made of?
Photons
Excess energy from heated electrons in atoms
200
Can you see a light even if it isn't pointing directly towards your eye?
Yes.
200
How many main parts are in a black hole?
3
Outer Event Horizon, Inner Event Horizon and the Singularity
300
What does a yellow dwarf star turn into afterwards?
A red giant star
300
Which stars live longer: Less massive stars or more massive stars?
Less massive stars
300
What is a refraction?
The change of speed or the bending of light due to an object
300
Why does the sun appear yellow? And the sky blue?
The colors in the sunlight scatter throughout our atmosphere.
300
What makes black holes suck things in?
Gravity.
400
What two elements combine to form stars?
Hydrogen and Helium
400
What happens after the star runs out of helium?
Hydrogen burns outward leaving behind helium ash
400
What is the measurement of how far light travels in a year?
A light year
400
Are we looking at stars that have already died? Why or why not?
Yes because it takes a long time for light to travel from stars to the Earth
400
We're not sure how a supermassive black hole forms but we do know that one is located in the center of______
The Milky Way
Our Galaxy
500
What is said to be the life span of yellow dwarf stars?
10 billion years
500
A red giant star is a dying star. What can happen when this star explodes or collapses?
Explodes: Supernova
Collapses: Black hole
500
Why do things appear in color?
Because of the light they are reflecting
500
Mr. Liegey told us about a star that we believed was behind and to the left of another. Turns out the star was right behind the other star. How is this possible?
Refraction/ light can bend in space
500
Describe a Stellar-mass black hole. How do they form?
They are made of stars that have used up all their energy