Scin 134 Final Examination Questions and Answers

SCIN 134 Final Examination Questions and Answers

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SCIN 134 Final Examination Questions and Answers

Question 1 of 36

2.0 Points

A star that is spectral class A is hotter than a star of spectral class O.

True

False

Question 2 of 36

2.0 Points

It can take hundreds of billions of years for a red dwarf to convert all of its hydrogen completely to helium.

True

False

Question 3 of 36

2.0 Points

Red stars are relatively “cold”, with low surface temperatures.

True

False

Question 4 of 36

2.0 Points

A white dwarf is approximately the same size as the Earth.

True

False

Question 5 of 36

2.0 Points

Fusion only occurs on the surface of the Sun.

True

False

Question 6 of 36

2.0 Points

In the conversion from hydrogen to helium, four protons are converted to one helium nucleus.

True

False

Question 7 of 36

2.0 Points

Occam’s razor is the idea that the most simple and most straightforward explanation of observations in nature is most likely to be the correct one.

True

False

Question 8 of 36

2.0 Points

Sunspots are dark because they are hotter than the surrounding material on the Sun.

True

False

Question 9 of 36

2.0 Points

All of the terrestrial planets have plate tectonics with converging and spreading plates similar to Earth’s.

True

False

Question 10 of 36

2.0 Points

Red stars are hot and blue stars are cold.

True

False

Question 11 of 36

2.0 Points

The Galaxy rotates like a solid disk, like a CD or DVD.

True

False

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