Stars, Galaxies, and Universe Test Review

Front

What category does our Sun belong to?

Back

Main Sequence

Front

What is the correct sequence of a star's life cycle?

Back

main sequence, red giant, white dwarf

Front

What is a large cloud of dust and gas where new stars are formed or stars explode?

Back

nebula

Front

What type of galaxy has no definite shape and is made up of gas, dust, and new stars?

Back

irregular galaxy

Front

Can our star (the Sun) ever become a Supergiant?

Back

No

Front

What is a star?

Back

A massive, luminous sphere of plasma held together by gravity, undergoing nuclear fusion.

Front

What is a galaxy?

Back

A system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Front

What is a supernova?

Back

A powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is a black hole?

Back

A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is a quasar?

Back

An extremely luminous active galactic nucleus, powered by a supermassive black hole.