distance between waves of radiation - short and long
What is a wavelength?
100
gravitational forces
What force causes stars to contract?
100
A theory how the universe started- it is widely accepted
What is the Big Bang theory?
100
planetary nebula
What happens to a sun-like star after it is a red giant?
100
iron
What is the element found in the final stages of a huge or giant stars' life?
200
True
Gamma rays have short wavelengths? True or False
200
elements are formed by nuclear fusion. lighter elements fuse to make heavier elements. nuclei of atoms fuse (come together) to make a new element
What is nuclear fusion?
200
13.7 billion years ago
How many years ago did the Big Bang occur?
200
stable state
What stage is the sun in now? What is the state when the gravitational forces pulling inward within a star are equal to the heat being generated by the core pushing outward?
200
carbon
What is the building block of life? What is formed in the core of a red giant or super red giant?
300
false -- red shift
Longer wavelengths moving away from an object shows a blue shift? true or false
300
neutron star
What is a very dense star?
300
expanding
According to Hubble's Law, is the universe expanding or contracting?
300
100,000 -200,000 degrees Celsius
What temperature is a white dwarf before it becomes a black dwarf?
300
300,000 kilometers per second
What is the speed that light travels through a vacuum?
400
radio wavelength
What form of radiation has the LONGEST wavelength?
400
hydrogen
What is the primary material from which stars are made?
400
creationism
What is one theory that refutes the Big Bang?
400
black hole
What happens to a giant red star after it is a supernova?
400
black hole
What is the star in which light cannot escape because of its immense gravitational pull at its surface?
500
violet
What color of light has the highest energy level?
500
Doppler effect
What is the change in a wavelength of an object as it moves away or closer to the observer?
500
proxima centuri
What is star is closet to us after the sun?
500
1. gravity
2. nuclear fusion
3. clouds of dust and gas
4. hydrogen
What does a stellar nursery have to have to create a star?