Deck 59: The H-R Diagram

Question 1

A plot of temperature vs. luminosity for stars is known as the ______.

A) Einstein graph
B) HR diagram
C) mass graph
D) luminosity graph

Answer 1

HR diagram

Question 2

_____ of stars will lie on the main sequence.

A) 45%
B) 50%
C) 75%
D) 90%

Answer 2

90%

Question 3

__________ are small bright dead cores of stars like our sun.

A) Neutron stars
B) Black holes
C) White holes
D) White dwarfs

Answer 3

White dwarfs

Question 4

A main sequence star has a luminosity class of

A) III
B) IV
C) V
D) Ib

Question 5

Our sun belongs to the luminosity class ____.

Question 6

Ordinary Giants are luminosity class ____.

Question 7

Most stars are not on the main sequence.

Question 8

Stars on the main sequence that are more luminous are smaller in size.