Star Life Cycle And Star Classification Question Preview (ID: 56734)


Use Your Knowledge Of Earth Science To Answer All Questions In The Data Set. You Will Need Your Earth Science Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck. TEACHERS: click here for quick copy question ID numbers.

Which process generates the energy that is released by stars?


a) nuclear fusion
b) thermal conduction
c) convection currents
d) radioactive decay

Which star color indicates the hottest star surface temperature?
a) blue
b) white
c) yellow
d) red

Barnard's Star has a surface temperature of about
a) 300 ºC
b) 3000 ºC
c) 5000 ºC
d) 10,000 ºC

In order to position a star on an H-R diagram you must know at least the star's
a) color and apparent brightness
b) color, apparent brightness and distance
c) apparent brightness and age
d) color and distance

Which process produces the energy radiated by the star when it becomes a main sequence star?


a) radioactive decay
b) nuclear fusion
c) conduction
d) convection

During which stage of development does the star have a cool surface temperature and the greatest luminosity?


a) protostar
b) main sequence
c) giant
d) white dwarf

By using a spectroscope an astronomer can
a) measure the size of a star
b) measure the altitude of a star
c) identify elements in the atmosphere of a star
d) measure the diameter of a star

Which characteristics best describe the star Betelgeuse?
a) reddish orange with low luminosity and high surface temperature
b) reddish orange with high luminosity and low surface temperature
c) blue white with low luminosity and low surface temperature
d) blue white with high luminosity and high surface temperature

Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
a) Polaris
b) Betelgeuse
c) Procyon B
d) Sirius

Giant stars have greater luminosity than our sun mainly because they are
a) hotter
b) farther away
c) larger
d) older

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