Stars
Practice Test
1.
From Earth, stars appear to shift in position, which is called __________.
a.
binary
b.
parallax
c.
circumpolar
d.
apparent magnitude
2.
Constellations that can be seen all year long from a certain location are __________.
a.
binary
b.
cluster
c.
circumpolar
d.
seasonal
3.
On the summer solstice, the Sun is directly above the __________, and the number of daylight hours for the northern hemisphere is __________.
a.
tropic of Cancer, at a maximum
b.
tropic of Capricorn, at a minimum
c.
equator, at a maximum
d.
tropic of Capricorn, at a minimum
4.
The objects that eventually formed planets by colliding and merging are called __________.
a.
asteroids
b.
planetesimals
c.
solar nebula
d.
stars
5.
What is the composition of Saturn's atmosphere?
a.
sulfuric acid and hydrogen
b.
helium and oxygen
c.
hydrogen and helium
d.
hydrogen, helium, and ammonia ice
6.
Which planets in the figure have solid surfaces?
a.
9
b.
1-4
c.
1-4 and 9
d.
5-8
7.
What layer of the Sun's atmosphere is above the chromosphere?
a.
photosphere
b.
corona
c.
troposphere
d.
stratosphere
8.
The Earth Moon is __________ in size and has an orbit_________ its planet relative to other moons in the solar system.
a.
smaller, farther from
b.
larger, closer to
c.
smaller, closer to
d.
larger, farther from
9.
Why do no maria exist on the far side of the Moon?
a.
There were no impacts on the far side.
b.
The crust is half as thin on the far side.
c.
The crust is twice as thick on the far side.
d.
Lava did not fill in the far side.
10.
Which image of the moon in the figure shows a gibbous?
a.
17
b.
16
c.
15
d.
18
11.
Why does Jupiter have a banded appearance?
a.
the Great Red Spot causes the bands
b.
it's rings
c.
due to it's four moons
d.
flow patterns in its atmosphere
12.
What is the distance between the Sun and Earth called?
a.
1 light year
b.
1 astronomical unit
c.
1 mile
d.
1 year
13.
What is the Sun's average density similar to?
a.
the density of the entire solar system
b.
the density of the gas giant planets
c.
the density of water
d.
the density of the rocky planets
14.
What is Olympus Mons?
a.
a composite volcano on Venus
b.
one of Mars' moons
c.
a scarp on Mercury
d.
a large shield volcano on Mars
15.
How is electromagnetic radiation arranged on the electromagnetic spectrum?
a.
by wavelength and frequency
b.
by velocity
c.
by oscillations
d.
by color
16.
How is the composition of a white dwarf determined?
a.
by the size of the supernova
b.
by its luminosity
c.
by the size of its planetary nebula
d.
by how many reaction phases it went through
17.
Comets are bodies that are __________ that orbit __________.
a.
icy, each planet
b.
ice and rock, the Sun
c.
helium gas, the Sun
d.
larger than Earth, Earth
18.
From what does a star form?
a.
a spectra
b.
a main sequence
c.
a nebula
d.
a binary
19.
What is the Sun-centered model of our solar system called?
a.
geocentric
b.
eccentric
c.
epicycle
d.
heliocentric
20.
The Very Large Array is an example of __________.
a.
an infrared telescope
b.
a refracting telescope
c.
a refracting telescope
d.
interferometry
