Astronomy Test Question Preview (ID: 2258)

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The terrestrial planets are
a) Mercury, Venus, Earth, and Mars
b) Mars, Jupiter, Saturn, Uranus
c) Jupiter, Saturn, Uranus, and Neptune
d) Mercury, Venus, Mars, and Jupiter

After a supernova, the left over materials from a star can become extremely dense star made of neutrons called a
a) blue star
b) red giant
c) neutron star
d) yellow dwarf

Which of the following statement is true?
a) Ptolemy believes the Sun was at the center of the universe.
b) Copernicus belived the Sun is at the center of the universe.
c) Galileo Galilei believed the Earth was at the center of the universe.
d) Isaac Newton belived the Sun is at the center of the universe.

The hottest planet is also the planet that is closest to Earth in size, mass, and density. What is this planet?
a) Pluto
b) Mercury
c) Mars
d) Venus

A meteor is
a) the bright streak of light caused by a meteoroid or comet dust burning up in the atmosphere.
b) when a meteoroid enters the Earth’s atmosphere and strikes the ground.
c) a small, rocky body orbiting the sun.
d) a hot, brilliant ball of gas.

If a star is in the bottom left hand corner of the Hertzprung-Russell diagram, what can you determine about it’s brightness and temperature?
a) The star is not bright and cooler.
b) The star is very bright and very hot.
c) The star is not bright but is very hot.
d) The star is very bright and cooler.

A solar flare is
a) a cool, dark spot on the sun.
b) a giant storm on the surface of the sun.
c) a spinning neutron star.
d) when a star runs out of hyrdogen for the fusion reactions.

Mercury is
a) tipped on its side at almost 90 degrees.
b) the smallest planet and is also closest to the sun.
c) the hottest planet.
d) about the same size as Earth.

A galaxy is
a) smaller than our Sun.
b) larger than the universe.
c) an object that is so dense that its gravity is strong enough to prevent light or anything else from escaping.
d) a large grouping of stars in space.

The speed of light is ______________________. This number is also equal to one ________________ in kilometers.
a) 300,000 km/s, light second
b) 180,000,000 km/s, light minute
c) 3,000,000 km/s, light second
d) 150 km/s, light minute

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