P9 â€“ Origins of the Universe By the end of this topic I will be able to: q q q q q
Describe the current evidence which supports the Big Bang theory Explain how red-shift provides evidence for the Big Bang theory Describe how galaxies that are further away have a bigger red-shift Describe how galaxies that are moving faster have a bigger red-shift Describe how cosmic microwave background radiation (CMBR) provides evidence for the Big Bang theory
Using the notes page fill in the gaps: We currently believe that the universe is e__________ and the universe began with a b____ b_____. In this big bang we believe that matter and s________ expanded rapidly from a very small initial point. We know this because when we look at distant g_________ the light reaching us from them, has a lower f_____________ and a larger ______________ then we would expect. This is called the r____ shift, because the colour of the light is shifted towards the r____ end of the electromagnetic s__________. This tells us that these galaxies are moving a________ from us at great speed and that the universe is e___________. There are two pieces of evidence which support the Big Bang theory. They are _____ - ______ and _____________________________________________ (CMBR).