The Universe Test consists of 19 questions. Correct answers will be provided after your answers have been submitted.

Have a fun learning experience!

1		The apparent magnitude scale of brightness uses larger numbers for __ ? __ stars as they appear in the sky.
			A)	brighter
			B)	dimmer
			C)	larger
			D)	smaller
2		More massive stars are fusing hydrogen to helium at __ ? __ rate as less massive stars.
			A)	a faster
			B)	a slower
			C)	the same
			D)	an unknown
3		The basic difference between the apparent magnitude scale and the absolute magnitude scale is that the absolute scale compensates for
			A)	the size of stars.
			B)	the temperature of stars.
			C)	distance differences.
			D)	composition differences.
4		The brightest, bluest stars are generally the
			A)	less massive.
			B)	most massive.
			C)	closest.
			D)	most distant.
5		A star with the greatest temperature will appear
			A)	bluish.
			B)	white.
			C)	yellow.
			D)	orange-red.
6		A star that experiences a supernova must be a star that had
			A)	a great mass.
			B)	a low mass.
			C)	a middle-range mass.
			D)	any mass.
7		In order to collapse into the theoretical ending known as a black hole a star must have
			A)	a great mass.
			B)	a low mass.
			C)	a middle-range mass.
			D)	any mass.
8		The basic unit of the universe is groups of stars called
			A)	main sequence stars.
			B)	novas.
			C)	white dwarfs.
			D)	galaxies.
9		According to the big bang theory the universe will ultimately
			A)	continue expanding.
			B)	contract to another big bang.
			C)	continue as it is now.
			D)	The answer is unknown.
10		Retrograde motion is a term used to describe the fact that
			A)	some planets travel in the opposite direction as the Earth.
			B)	some planets rotate in a direction opposite of the earth's rotation.
			C)	planets revolve around the Sun following a path of epicycles.
			D)	planets sometimes appear to move backwards in their path around the ecliptic.
11		The difference in brightness between two stars is related to
			A)	the amount of light and energy produced by the stars.
			B)	the relative size of the stars.
			C)	the distances between the stars.
			D)	all of these.
12		Which of the following is defined by your location on Earth?
			A)	celestial pole
			B)	celestial meridian
			C)	celestial equator
			D)	all of these are defined by your location.
13		The Earth rotates
			A)	from west to east.
			B)	from east to west.
			C)	at the same rate as it revolves around the Sun.
			D)	twice each day.
14		If the density of the universe is less than a critical value, then
			A)	it will eventually contract to a concentrated mass.
			B)	it will go on expanding forever.
			C)	it could expand to a fixed size and remain.
			D)	there’s probably less dark matter than luminous.
15		The expected life span of a star the size of the Sun is about
			A)	10 billion years
			B)	1 billion years
			C)	100 million years
			D)	20 billion years
16		Compared to a star like the Sun, a blue-white star
			A)	is more massive
			B)	has a higher surface temperature
			C)	burns its fuel at a greater rate
			D)	all of these
17		The eventual fate of our Sun is to become
			A)	a neutron star.
			B)	a supernova.
			C)	a white dwarf.
			D)	a black hole.
18		The Milky Way galaxy is
			A)	spiral
			B)	elliptical
			C)	globular
			D)	spherical
19		Most of the stars plotted on a H-R diagram are
			A)	red giant stars.
			B)	white dwarf stars.
			C)	Cepheid Variables.
			D)	main sequence stars.