Stars, Galaxies, and Universe Test Review

Front

What is a dark spot on the photosphere of the sun?

Back

A sunspot is a temporary phenomenon on the photosphere of the Sun that appears as spots darker than the surrounding areas.

Front

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

Back

A nebula is a giant cloud of dust and gas in space, often the birthplace of stars.

Front

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

Back

The life cycle of a star typically follows this sequence: main sequence, red giant, white dwarf.

Front

Order these objects from smallest to largest: Planets, solar system, galaxy, universe.

Back

The correct order from smallest to largest is: Planets, solar system, galaxy, universe.

Front

What is a large grouping of stars, dust, and gas bound together by gravity?

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, all bound together by gravity.

Front

What is the term for the study of the universe and its contents?

Back

Cosmology is the scientific study of the large scale properties of the universe as a whole.

Front

What is a supernova?

Back

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

Front

What is the difference between a planet and a star?

Back

A planet is a celestial body that orbits a star, while a star is a massive, luminous sphere of plasma held together by gravity.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system, characterized by its spiral shape.

Front

What is a black hole?

Back

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