Create an account
Big Bang Theory
theory which states that the universe began about 15 billion years ago with the explosive expansion of a singularity
steady state theory
theory which states that there was no beginning to the universe and that the universe does not change in appearance
reactions involving the breaking of bonds between particles protons and neutrons inside the nuclei of atoms. a
temp at which the particles that mark up and object or substance have no kinetic energy approx -273.15C
big crunch theory
a theory which proposes that the universe will snap back on itself resulting in another singularity
big chill theory
a theory which proposes that the universe will continue indefinitely until the stars use up their fuel and burn out
observed change in frequency of a wave when the wave source and observer are moving in relation to each other
light from a source separated out into the sequence of colours, showing the different frequencies
shift of lines of a spectral pattern towards the red end when the source is moving away from the observer
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together