Stars
Practice Test
1.
From Earth, stars appear to shift in position, which is called __________.
SC.E.2.4.2
a.
parallax
b.
binary
c.
apparent magnitude
d.
circumpolar
2.
Where are most asteroids located?
SC.E.1.4.2
a.
orbiting all planets
b.
between Mars and Jupiter
c.
between Earth and Venus
d.
outside of Pluto's orbit
3.
From what does a star form?
a.
a main sequence
b.
a binary
c.
a nebula
d.
a spectra
4.
What is the disadvantage of absolute magnitude?
SC.E.2.4.1
a.
It can't be calculated for the Sun.
b.
It is only the apparent magnitude.
c.
It can only be calculated if a stars distance is known.
d.
It can only be calculated if the stars composition is known.
5.
What two elements make up 98.4 percent of the Sun's composition?
SC.E.1.4.1
a.
hydrogen and helium
b.
oxygen and helium
c.
hydrogen and nitrogen
d.
hydrogen and carbon dioxide
6.
Constellations that can be seen all year long from a certain location are __________.
SC.E.2.4.2
a.
cluster
b.
circumpolar
c.
seasonal
d.
binary
7.
How is the composition of a white dwarf determined?
a.
by its luminosity
b.
by how many reaction phases it went through
c.
by the size of the supernova
d.
by the size of its planetary nebula
8.
From where on the Sun does the solar wind escape?
SC.E.1.4.1
a.
photosphere
b.
sunspots
c.
solar flares
d.
coronal holes
9.
The Sun contains __________ percent of all the mass in our solar system.
SC.E.1.4.1
a.
1
b.
99
c.
100
d.
10
10.
Energy output from the surface of a star is called __________.
SC.E.2.4.1
a.
spectra
b.
apparent magnitude
c.
absolute magnitude
d.
luminosity
11.
Comets are bodies that are __________ that orbit __________.
SC.E.1.4.2
a.
icy, each planet
b.
ice and rock, the Sun
c.
helium gas, the Sun
d.
larger than Earth, Earth
12.
A __________ is visible light arranged according to wavelength.
SC.E.2.4.1
a.
spectrum
b.
auroras
c.
emission spectrum
d.
solar flare
13.
The objects that eventually formed planets by colliding and merging are called __________.
SC.E.1.4.2
a.
solar nebula
b.
planetesimals
c.
stars
d.
asteroids
14.
Look at the periodic table in the figure. What is unique about the two elements that compose most of the Sun's gases?
SC.E.1.4.1
a.
They're both radioactive.
b.
They're very heavy elements.
c.
They're both metals.
d.
They're the two smallest elements.
15.
What is the Sun's average density similar to?
SC.E.1.4.1
a.
the density of water
b.
the density of the rocky planets
c.
the density of the gas giant planets
d.
the density of the entire solar system
