Big Bang Theory (review)

Front

The three pieces of evidence for our current theory of the universe are: blueshift, CMB, moon landing., redshift, IBM, Andromeda galaxy., redshift, CMB, distribution of elements., doppler effect, light spectra, fusion.

Back

redshift, CMB, distribution of elements.

Front

Galaxies that are redshifted are:

Back

moving away from us.

Front

The universe is expanding! This means that: all of the galaxies are spreading out., the universe must have started from a single point., the universe is cooling down., all of the above.

Back

all of the above.

Front

The CMB is:

Back

the remaining energy from the big bang.

Front

The only elements in the universe were hydrogen and helium until:

Back

stars began doing fusion.

Front

Our theory of the universe was confirmed by the discovery of: fusion., cosmic microwave background radiation., the Andromeda galaxy., the Doppler effect.

Back

cosmic microwave background radiation.

Front

Light waves that are stretched out by objects moving apart:

Back

appear more red.

Front

CMB stands for:

Back

Cosmic Microwave Background Radiation.

Front

The temperature of the universe:

Back

has cooled to about 2.7 Kelvin.

Front

The universe is ____________ years old.

Back

13.8 billion