Light and Big Bang
HR Diagram
Misc
Fusion
Stars
100
what absorbs heat better? dark colors or light colors
dark colors
100
what is represented on the x-axis of the HR diagram?
temperature
100
what does ROY G BIV mean?
red, orange, yellow, green, blue, indigo, violet
100
what is the definition of fusion?
when 2 atoms combine to form a new atom
100
low mass stars have __________ lives
long
200
what color in visible light wave is the longest?
red
200
which star has the highest temperature? a Red Giant or a blue main sequence star?
blue main sequence
200
which part of the electromagnetic spectrum has the highest frequency?
gamma rays
200
what is the element that has only 1 proton?
hydrogen
200
high mass stars have __________ luminosity
high
300
How is the universe "moving"?
It's expanding.
300
which star has a higher mass? a yellow main sequence star or a blue main sequence star?
blue main sequence
300
What's the most common type of star?
main sequence
300
what is the element that has 2 protons?
helium
300
true or false
A low mass star turns into a super red giant.
false
400
this is hydrogen's emission spectrum. do you expect to see more or less lines in the spectrum of carbon?
more
400
which letter shows the dimmest stars
D
400
What's the luminosity of the sun?
1
400
How can we tell if a star is young?
(what is it primarily made of?)
it is made primarily of hydrogen and helium
400
where are all stars born?
in a nebula
500
What are the 2 pieces of evidence for the Big Bang?
red shift and cosmic background microwaves
500
comparing letters C and A - which one is brighter?
C
500
The HR Diagram classifies what 4 properties about stars?
color, temperature, size, luminosity
500
what 2 things are needed for fusion to take place
high pressure low pressure high temp low temp
high pressure/gravity and high temperature
500
which type of star goes from a supernova to a black hole?
high mass star