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The life and death of stars

Terms in this set (20)

All stars
a.
reflect light from the sun.
c.
produce their own light.
b.
appear to wander off their star paths.
d.
All of the above.


Please select the best answer from the choices provided

A
B
C
D
c produce their own light
Most stars are at what point in their life cycles?

a.
supergiant
c.
main sequence
b.
giant
d.
white dwarf



Please select the best answer from the choices provided


A
B
C
D
c main sequence
In stars, energy is produced primarily as hydrogen atoms are combined to form
a.
helium atoms.
c.
oxygen atoms.
b.
carbon atoms.
d.
nitrogen atoms.


Please select the best answer from the choices provided

A
B
C
D
a helium atoms
Not including the sun, the closest stars to Earth are
a.
4.3 light-years away.
c.
430 light-years away.
b.
43 light-years away.
d.
4300 light-years away.


Please select the best answer from the choices provided

A
B
C
D
4.3 light years away
Stars are held together by
a.
ionic forces.
c.
electrical forces.
b.
magnetic forces.
d.
gravitational forces.


Please select the best answer from the choices provided

A
B
C
D
d gravitational forces
A star's apparent brightness is dependent upon
a.
temperature.
c.
size.
b.
distance from Earth.
d.
All of the above.


Please select the best answer from the choices provided

A
B
C
D
d all of the above
The surface temperature of a star can be estimated based on the star's
a.
size.
c.
age.
b.
color.
d.
mass.


Please select the best answer from the choices provided

A
B
C
D
b color
The surface temperature of a star can be estimated based on the star's
size.
age.
color.
mass.
color
What does the absolute magnitude of a star depend on?
a.
Brightness
c.
Energy output
b.
Distance from Earth
d.
Color of a star


Please select the best answer from the choices provided

A
B
C
D
c energy output
Extremely high temperatures and pressures are necessary for fusion reactions to take place in stars.


Please select the best answer from the choices provided

T
F
t
A light-year is a unit of
a.
time.
c.
mass.
b.
distance.
d.
density.


Please select the best answer from the choices provided

A
B
C
D
b distance
What color does the star Alpha Centauri appear to be?
a.
Red
c.
Blue
b.
Yellow-white
d.
Blue-orange


Please select the best answer from the choices provided

A
B
C
D
b yellow- white
The sun is
a.
an unusually hot star.
c.
a typical star.
b.
a very cool star.
d.
None of the above.


Please select the best answer from the choices provided

A
B
C
D
a typical star
Supergiant stars
a.
form from red giants.
c.
form planetary nebulae.
b.
fuse hydrogen into carbon.
d.
form supernovas.


Please select the best answer from the choices provided

A
B
C
D
d form supernovas
In stars, energy is produced primarily as hydrogen atoms are combined to form
a.
helium atoms.
c.
oxygen atoms.
b.
carbon atoms.
d.
nitrogen atoms.


Please select the best answer from the choices provided

A
B
C
D
a helium atoms
The surface temperature of a star can be estimated based on the star's
a.
size.
c.
age.
b.
color.
d.
mass.


Please select the best answer from the choices provided

A
B
C
D
b color
A star's apparent brightness is dependent upon
a.
temperature.
c.
size.
b.
distance from Earth.
d.
All of the above.


Please select the best answer from the choices provided

A
B
C
D
d all the above
Most of the stars in the Milky Way will end their lives as
a.
white dwarfs.
c.
supernovas.
b.
black holes.
d.
red giants.


Please select the best answer from the choices provided

A
B
C
D
a white dwarfs
Stars are held together by
a.
ionic forces.
c.
electrical forces.
b.
magnetic forces.
d.
gravitational forces.


Please select the best answer from the choices provided

A
B
C
D
d gravitational forces
What does the absolute magnitude of a star depend on?
a.
Brightness
c.
Energy output
b.
Distance from Earth
d.
Color of a star


Please select the best answer from the choices provided

A
B
C
D
c energy output
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