Big Bang Flashcards
explain the big bang
the big bang is how astronomers explain the beginning of the Universe. In simple words, the universe started from a singularity and then there was a bang, and all energy was created to matter which was created into our universe and etc. Our universe is still expanding
what happened in the big bang
energy was converted into mass and vice versa, setting off a chain of events in which matter was created/
what evidence is there for the big bang?
the red-shift, which is meant to be evidence for the universe expanding
how is the red-shift evidence for the expanding universe?
Red-shift is left by moving galaxies from years ago, due to radiowaves. This is because when an object is moving, the waves in front are shortened and the waves behind are stretched out compared to a stationary object where the waves are all evenly spaced out in all directions.
what is CMB
cosmic microwave radiation
how does CMB support the big bang
If the big bang, scientists theorised the universe should be full of CMB, it is like an afterglow of a huge explosion.
