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Astronomy Review #2

Last updated over 6 years ago

8 questions

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Question 1

1.

According to the HR diagram above, an example of a star with a relatively high surface temperature but is not very bright would be

Sirius B

Spica

Antares

Wolf 359

Question 2

2.

Low mass stars end their lives as

planetary nebula

neutron stars or possibly a black hole

Red giants

White dwarves

Question 3

3.

According to Hubble's Law

Higher mass stars are found in more distant galaxies

The farther away galaxies are receding faster than closer galaxies

Closer galaxies are moving toward us at increasing speeds

Closer galaxies are moving away faster than farther away galaxies

Question 4

4.

The formation of elements heavier than Iron can only be explained by the action of

Thermonuclear fusion in main sequence stars

The collapse of a red giant star

Supernovea explosions

Black holes

Question 5

5.

The age of our universe is

65 million years

4.6 Billion years

13.7 Billion years

Question 6

6.

Light coming from a galaxy the hydrogen red line at 705 nm. If the hydrogen red line in the lab is confirmed at 656 nm, at what percent of the speed of light is the galaxy receding?

7.0%

7.5%

9.0%

90%

Question 7

7.

The most common isotope of Chlorine has how many protons, neutrons, and electrons?

Question 8

8.

Draw the electron configuration for Nitrogen.