Unit 6 The Universe Test Review

Front

What type of galaxy is disc-shaped with arms?

Back

Spiral galaxy.

Front

What is the final stage of our Sun’s life cycle?

Back

White dwarf.

Front

What is the main force that holds a galaxy together?

Back

Gravity.

Front

What were the original two elements in our universe?

Back

Hydrogen and Helium.

Front

What is the movement of galaxies in relation to us?

Back

The galaxies are moving away from us.

Front

What is a galaxy?

Back

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

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, and Irregular.

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 neutron star?

Back

A type of stellar remnant that is incredibly dense, formed from the remnants of a supernova explosion.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low or medium mass star after it has exhausted its nuclear fuel.