Universe & HR Diagram, STARs  REVIEW

Universe & HR Diagram, STARs REVIEW

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Flashcard

Science

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Main Sequence in the HR Diagram?

Back

The Main Sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. Most stars, including the Sun, are found in this region.

2.

FLASHCARD QUESTION

Front

What is the relationship between a star's temperature and its brightness?

Back

The hotter the star, the more brightly it burns. This means that temperature and brightness are directly related.

3.

FLASHCARD QUESTION

Front

What are the stages in the life cycle of a star?

Back

The stages are: Nebula, Protostar, Average Star, Red Giant, and White Dwarf.

4.

FLASHCARD QUESTION

Front

What are the three main types of galaxies?

Back

The three main types of galaxies are Spiral, Irregular, and Elliptical.

5.

FLASHCARD QUESTION

Front

How does a star's size affect its life cycle?

Back

Larger stars have shorter life cycles and evolve into supernovae, while smaller stars like the Sun have longer life cycles and end as white dwarfs.

6.

FLASHCARD QUESTION

Front

What is a nebula?

Back

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

7.

FLASHCARD QUESTION

Front

What is a protostar?

Back

A protostar is a young star that is still in the process of forming, where the material is collapsing under gravity.

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