Stars
Practice Test
1.
What explains why the Sun governs the motion of all planets in our solar system?
SC.E.1.4.1
a.
Kepler's third law
b.
telescopic observations of the planets
c.
retrograde motion of planets
d.
the law of universal gravitation
2.
What causes the wavelength of a star's spectral lines to shift?
SC.E.2.4.1
a.
the composition of the star
b.
motion between the star and the observer
c.
the apparent magnitude of the star
d.
the temperature of the star
3.
The plane of Earth's orbit around the Sun is called __________.
SC.E.1.4.1
a.
the altitude
b.
the ecliptic
c.
the revolution
d.
the solar day
4.
What layer of the Sun's atmosphere is above the chromosphere?
SC.E.1.4.1
a.
corona
b.
troposphere
c.
photosphere
d.
stratosphere
5.
What is albedo?
SC.E.1.4.2
a.
the amount of sunlight a surface absorbs
b.
the light areas of the Moon
c.
the amount of sunlight a surface reflects
d.
meandering valleylike structures
6.
What are Jupiter's moons composed of?
SC.E.1.4.2
a.
rock and ice
b.
iron and ice
c.
sulfuric acid
d.
hydrogen and helium
7.
What is the Sun-centered model of our solar system called?
SC.E.1.4.1
a.
epicycle
b.
geocentric
c.
eccentric
d.
heliocentric
8.
From Earth, stars appear to shift in position, which is called __________.
SC.E.2.4.2
a.
circumpolar
b.
binary
c.
parallax
d.
apparent magnitude
9.
What theory of formation is most widely accepted for Earth's moon?
SC.E.1.4.2
a.
the simultaneous formation
b.
the impact theory
c.
the capture theory
d.
the plate tectonic theory
10.
What causes Uranus' blue appearance?
SC.E.1.4.2
a.
surfuric acid in its atmosphere
b.
the vast oceans
c.
the methane in its atmosphere
d.
the ammonia ice droplets
11.
What is Olympus Mons?
SC.E.1.4.2
a.
a composite volcano on Venus
b.
one of Mars' moons
c.
a scarp on Mercury
d.
a large shield volcano on Mars
12.
The objects that eventually formed planets by colliding and merging are called __________.
SC.E.1.4.2
a.
planetesimals
b.
asteroids
c.
solar nebula
d.
stars
13.
On the summer solstice, the Sun is directly above the __________, and the number of daylight hours for the northern hemisphere is __________.
SC.E.1.4.1
a.
equator, at a maximum
b.
tropic of Capricorn, at a minimum
c.
tropic of Capricorn, at a minimum
d.
tropic of Cancer, at a maximum
14.
The inner four planets of our solar system are called the __________ planets and the next four are called the __________ planets.
SC.E.1.4.2
a.
rocky, gas-like
b.
gas giant, terrestrial
c.
hard, soft
d.
terrestrial, gas giant
15.
From what does a star form?
a.
a spectra
b.
a binary
c.
a main sequence
d.
a nebula
16.
How is the composition of a white dwarf determined?
a.
by how many reaction phases it went through
b.
by its luminosity
c.
by the size of the supernova
d.
by the size of its planetary nebula
17.
What determines the light-collecting power of a microscope?
a.
the configuration of the lenses
b.
the shape of the opening
c.
the number of mirrors
d.
the area of the opening
18.
Where are most asteroids located?
SC.E.1.4.2
a.
between Earth and Venus
b.
between Mars and Jupiter
c.
orbiting all planets
d.
outside of Pluto's orbit
19.
A __________ telescope uses lenses to bring visible light to a focus.
SC.E.2.4.6
a.
Very Large Array
b.
interferometry
c.
refracting
d.
reflecting
20.
Which zone of the Sun moves energy through radiation?
SC.E.1.4.1
a.
radiative
b.
corona
c.
convective
d.
photosphere
