Universe

Universe

Assessment

Flashcard

Science

12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the brightest star in the night sky?

Back

Sirius, also known as the Dog Star.

2.

FLASHCARD QUESTION

Front

What is a white dwarf?

Back

A white dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel.

3.

FLASHCARD QUESTION

Front

What unit of measurement do astronomers use for vast distances in space?

Back

Light Years.

4.

FLASHCARD QUESTION

Front

What determines the lifespan of a star?

Back

The mass of the star.

5.

FLASHCARD QUESTION

Front

What type of galaxy has a smooth, featureless light profile?

Back

Elliptical galaxy.

6.

FLASHCARD QUESTION

Front

What is the main component of stars?

Back

Hydrogen, which undergoes nuclear fusion to form helium.

7.

FLASHCARD QUESTION

Front

What is the process by which stars generate energy?

Back

Nuclear fusion.

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