Section #: 30.2
Measuring the Stars
Practice Test
1.
What causes the wavelength of a star's spectral lines to shift?
SC.E.2.4.1
a.
motion between the star and the observer
b.
the temperature of the star
c.
the apparent magnitude of the star
d.
the composition of the star
Hint
2.
What is the disadvantage of absolute magnitude?
SC.E.2.4.1
a.
It can only be calculated if a stars distance is known.
b.
It can only be calculated if the stars composition is known.
c.
It is only the apparent magnitude.
d.
It can't be calculated for the Sun.
Hint
3.
Why doesn't apparent magnitude actually measure the brightness of the star?
SC.E.2.4.1
a.
It doesn't account for energy output.
b.
It doesn't account for composition.
c.
It doesn't account for temperature.
d.
It doesn't account for distance.
Hint
4.
Energy output from the surface of a star is called __________.
SC.E.2.4.1
a.
luminosity
b.
spectra
c.
apparent magnitude
d.
absolute magnitude
Hint
5.
A __________ is visible light arranged according to wavelength.
SC.E.2.4.1
a.
spectrum
b.
solar flare
c.
emission spectrum
d.
auroras
Hint
6.
Constellations that can be seen all year long from a certain location are __________.
SC.E.2.4.2
a.
circumpolar
b.
seasonal
c.
cluster
d.
binary
Hint
7.
From Earth, stars appear to shift in position, which is called __________.
SC.E.2.4.2
a.
apparent magnitude
b.
binary
c.
circumpolar
d.
parallax
Hint
