Light
Light travels as what?
A Wave
Stars are initially formed in what?
Nebula
Where was the modern classification system created?
Harvard Observatory
This part of the H-R diagram describes how bright a star is
Luminosity
Nucleosynthesis is the creation of new atomic nuclei. What is the element that this process starts at?
Hydrogen
The highest frequency part of visible light is what?
Violet
After it is formed, a star will spend 90% of its life as what?
A main sequence star
What classification does our Sun have?
G2 star
On an HR diagram, in what direction does temperature increase?
From Right to left
What two traits of stars make it possible to fuse elements together?
High Pressure and Temperature
Frequency has a direct correlation with what other property of light?
Energy
If a massive star runs out of fuel, what big explosion can happen?
A supernova
M Stars are normally this color
Red
If two stars have the same temperature, and one of them is brighter, what can be said about the brighter star?
It is larger
What Element is created after hydrogen atoms are fused together?
Helium
This form of light has the lowest energy
Radio Waves
When a smaller star dies, what stage is a hot core that cools over time?
White Dwarf
An extremely hot star would have this coloration
Blue
What type of star exists on the main sequence in a long band that cuts from top left to bottom right?
Main Sequence
What element does nucleosynthesis stop at in stars?
Iron
This part of light is used for sterilization
UV light
A star running out of hydrogen and beginning to fuse heavier elements will result in what?
A Red giant
Describe the Harvard system with its letters from hottest to coolest
O,B,A,F,G,K,M
What kind of stars have low temperatures but very high luminosities?
Red Giants
How are Humans connected to stars?
The elements in our bodies were once formed in stars.