Test 2

Question 1 (2.5 points)

The HR diagram is a plot of _________.
Student response: Percent
Value Correct
Response Student
Response Answer Choices a. luminosity versus mass versus weight b. apparent brightness versus interior star temperature
100.0%

c. luminosity versus surface temperature of a star versus size in solar radii d. radius versus weight

Score: 2.5 / 2.5

Question 2 (2.5 points)

What factor caused different planets to form out of different types of material?
Student response: Percent
Value Correct
Response Student
Response Answer Choices a. The angular momentum of the forming planet.
0.0%
b. The quantity of dust particles in the solar nebula. c. The variation in temperature throughout the solar nebula. d. none of the above

Score: 0 / 2.5

Question 3 (2.5 points)

Earth crossing asteroids are termed-
Student response: Percent
Value Correct
Response Student
Response Answer Choices
100.0%

a. Apollo Asteroids b. Amor Asteroids c. Jovian asteroids d. Aten Asteroids

Score: 2.5 / 2.5

Question 4 (2.5 points)

Unlike the terrestrial planets, the planetismals that formed the jovian planets were made up of _________ materials.
Student response: Percent
Value Correct
Response Student
Response Answer Choices
100.0%

a. icy b. extremely hot c. extremely dense d. none of the above

Score: 2.5 / 2.5

Question 5 (2.5 points)

What are comets made of?
Student response: Percent
Value Correct
Response Student
Response Answer Choices a. Silica. b. Metallic dust particles. c. Methane, ammonia, and water ice.
100.0%

d. All of the above

Score: 2.5 / 2.5

Question 6 (2.5 points)

What are the two most important intrinsic properties used to classify stars?
Student