Flashcard on Stars

Front

What are Supergiants?

Back

Supergiants are the most massive stars according to the H-R diagram, known for their large size and brightness.

Front

What is one factor used to describe stars?

Back

Size is one of the factors used to describe stars, indicating how large or small they are.

Front

Do all stars have the same size?

Back

No, stars vary greatly in size, from small dwarfs to massive supergiants.

Front

What color are cooler stars?

Back

Cooler stars are red in color.

Front

What is NOT true about stars?

Back

All stars are the same size is NOT true; stars vary greatly in size.

Front

What is the H-R diagram?

Back

The H-R diagram is a graph that plots stars according to their brightness and temperature.

Front

What is the relationship between a star's size and its mass?

Back

The size of a star often indicates its mass; larger stars tend to have greater mass.

Front

What are Main Sequence Stars?

Back

Main Sequence Stars are stars that are in the stable phase of their life cycle, fusing hydrogen into helium.

Front

What are White Dwarfs?

Back

White Dwarfs are small, dense stars that are the remnants of stars that have exhausted their nuclear fuel.

Front

What is a Red Giant?

Back

A Red Giant is a star that has expanded and cooled after exhausting the hydrogen in its core.