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Section 8.3
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1
A star’s luminosity is a measure of…
A)its brightness compared to other stars.
B)the colour of the surface of the star.
C)the total amount of energy radiated per second.
D)the total amount of energy radiated per year.
2
When comparing colours of stars, which colour indicates a cool surface temperature?
A)orange
B)red
C)yellow
D)blue
3
Which of the following characteristics make the Sun unusual compared to other stars?
A)the Sun’s surface temperature
B)the Sun’s large solar mass
C)not being part of a binary star system
D)the yellow colour of the Sun
4
Which of the following can a star evolve into during its final stages of life?
A)neutron star
B)red supergiant
C)Nebula
D)supernova
5
A black hole has…
A)volume and strong gravitational forces.
B)no volume and a strong gravitational force.
C)no mass and a strong gravitational force.
D)no volume and no mass.





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