Stars, Galaxies, and the Universe

Front

Which star has the lowest luminosity?

Back

D

Front

Which star is considered a Main Sequence Star? Options: A, B, C, D

Back

A

Front

What process takes place inside a star to generate energy?

Back

Nuclear fusion

Front

What do the initial moments after the Big Bang have in common with the universe as it exists now?

Back

The universe began expanding then, and it is still expanding today.

Front

Order the main parts of an average star's life cycle.

Back

protostar>
main sequence>
red giant >
white dwarf

Front

A star at the stage in its life cycle when it stops fusing hydrogen, begins fusing helium, and expands to a large, low-density star. What stage in the life cycle does this describe? Options: Supernova, Black Hole, Main Sequence, Red Giant or Red Supergiant

Back

Red Giant or Red Supergiant

Front

Who discovered that the galaxies were moving away from one another?

Back

Edwin Hubble

Front

Which piece of evidence supports the Big Bang theory?

Back

The more distant galaxies are moving the quickest

Front

If Star X is 30 times as far from the sun as Carinae V602, which is 8.9 light years away, how far is Star X from the sun, to the nearest light year?

Back

267

Front

Which type of star is the hottest according to the Hertzsprung-Russell diagram?

Back

Blue main sequence