Stars

Front

What color of star is the coolest?

Back

Red stars are the coolest in temperature.

Front

What color of star is the hottest?

Back

Blue stars are the hottest in temperature.

Front

What is luminosity in relation to stars?

Back

Luminosity is a measure of how bright the star is.

Front

Define apparent brightness of a star.

Back

Apparent brightness is the brightness of a star as seen from Earth.

Front

What is the name of the star in our solar system?

Back

The Sun is the star in our solar system.

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.

Front

What is the main component of stars?

Back

Stars are primarily composed of hydrogen and helium.

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages: nebula, main sequence, red giant, and supernova or white dwarf.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a star's life cycle.

Front

What is a black hole?

Back

A black hole is a region of space where gravity is so strong that nothing can escape from it.