5. A star on the upper left-hand part of the main sequence will right-hand part of the main sequence.
a. have a longer lifetime b. be hotter c. be smaller d. be less luminous e, be dimmer
6. A red giant of spectral type M will be luminosity. than a main sequence star of the same
a. hotter b. Bigger c. more luminous d. all of the above 7.
Two stars that have the same luminosity will also have the same a. absolute magnitude.
b. apparent magnitude. c. both a and b. d. neither a nor b.
8. If the temperature of a star increases without a change in the stars size, its point on the H-R diagram moves...
a. horizontally to the left b. up and to the left c. down and to the left d. down and to the right
9. A red main sequence star would most likely be which spectral type?
a. 0 b. M c. F d. B e. G
10. White dwarf stars do not:
a. have high temperatures. b. have high luminosities. c. belong to O spectral type. d. have large absolute magnitude numbers.