Unit 8: Estrellas

Unit 8: Estrellas

Assessment

Flashcard

Science

11th Grade

Practice Problem

Hard

Created by

Amy Garner

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

Apparent Magnitude

Back

Archaic version of brightness where the more negative the value, the brighter the star.

2.

FLASHCARD QUESTION

Front

Absolute Magnitude

Back

Archaic version of luminosity where the more negative the value, the more luminous the star.

3.

FLASHCARD QUESTION

Front

Ptolemy

Back

Greek "Astronomer" who created the magnitude system. He couldn't cope with heliocentrism, so he invented the worst system to organize stars conceivable.

4.

FLASHCARD QUESTION

Front

Brightness

Back

The amount of light visible from Earth coming from a celestial object. Measured in Watts per square meter.

5.

FLASHCARD QUESTION

Front

Main Sequence Star

Back

Over 90% of stars in the universe are this type of star. These stars fuse hydrogen into helium in their core. They are very average.

6.

FLASHCARD QUESTION

Front

Supergiant Star

Back

Not always blue. These stars fuse a combination of hydrogen, helium, carbon, neon, oxygen, silicon, and iron in their cores, causing them to be very bright and very short-lived.

7.

FLASHCARD QUESTION

Front

Hypergiant Stars

Back

Not always yellow. So large and unstable they live for very short periods of time, continuously spewing large portions of their mass into space until they die explosively.

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