1. A blackbody
a) reflects all radiation that falls upon it
b) refracts all radiation that falls upon it
c) absorbs all radiation that falls upon it
d) just sits there doing nothing
e) is invisible to the eye
2. If you double the temperature of a heated solid body, it will radiate how
many times more energy?
a) 2 b) 4 c) 8 d) 16 e) 32
3. Of those listed below, a body at 5 degrees Kelvin can produce only
a) radio radiation
b) visible light
c) ultraviolet
d) X-rays
e) gamma rays
4. Absorption and emission lines are caused by energy changes in atomic and
molecular
a) electrons
b) neutrons
c) protons
d) both protons and neutrons
e) both electrons and neutrons
5. The age of the Sun, Earth, and Solar System are calculated to be
a) 40,000 years
b) 45 million years
c) 550 million years
d) 4.5 billion years
e) 45 billion years
6. We know the ages of the meteorites (asteroids that hit the Earth), hence
the age of the Earth and the Solar System, from
a) ancient writings found in the Pyramids but long kept hidden
by a government conspiracy
b) the decays of radioactive elements
c) where on Earth they are found
d) their speeds of entry into the Earth's atmosphere
e) how long it now takes them to go around the Sun
7. What kind of clouds do we find on the Moon?
a) water vapor
b) methane
c) carbon dioxide
d) nitrogen
e) none at all
8. The Moon keeps one face pointed toward
a) the Sun
b) the Earth
c) Venus
d) the center of the Galaxy
e) Jupiter
9. How many times larger (in diameter) is the Earth than the Moon?
a) same diameter
b) 2
c) 3
d) 4
e) 5
10. Craters on the Moon are produced by
a) impacts by bodies from space
b) volcanoes
c) a roughly equal combination of volcanoes and impacts
d) an unknown process
e) explosions from natural radioactive materials
11. The lunar maria are
a) ancient ocean beds
b) water filled oceans
c) areas where no craters ever formed
d) lava-filled impact basins
e) large volcanoes
12. The Moon's water
a) is in oceans on the far side
b) is in oceans on the near side
c) fills most of the craters on the near side
d) may consist of a tiny bit of ice at the poles
e) is in the lunar core
13. Why is the Earth less heavily cratered than the Moon?
a) The Moon rotates slower than the Earth and therefore picked
up more craters
b) The Moon's smaller gravity lets in larger rocks from
space
c) The Earth's greater gravity flattens the craters
d) Various processes on Earth erode or destroy impact
craters
e) the lunar rocks are softer than are those on Earth
14. The islands of Hawaii are caused by
a) a mantle plume that rises up from the core
b) an impact from space
c) continental drift
d) tides raised by the Moon
e) the Earth's rotation
15. The Earth's mantle is made mostly of
a) silicates
b) iron
c) nickel
d) water
e) carbon
16. Continental drift is caused by
a) convection in the Earth's inner core
b) the rapid rotation of the Earth
c) the Earth's magnetic field
d) convection in the Earth's mantle
e) atmospheric winds
17. The Earth's inner core is made mostly of
a) solid iron
b) liquid iron
c) solid silicates
d) liquid silicates
e) gaseous hydrogen
18. The Earth's outer core (that just beneath the mantle) is made mostly
of
a) solid iron
b) liquid iron
c) solid silicates
d) liquid silicates
e) gaseous hydrogen
19. Circulation in the Earth's outer core produces the Earth's
a) continental drift
b) atmosphere
c) oil reserves
d) rotation
e) magnetic field
20. Earthquakes and volcanos are ultimately produced by
a) the Earth's magnetic field
b) tides raised by the Moon
c) tides raised by the Sun
d) convection in the Earth's mantle
e) impacts by asteroids
21. The Moon has no continental drift, that is, is all one plate because
a) eclipses keep the Moon cold and prevent heating of the mantle
b) craters reach to the core and let the internal heat escape
c) the Moon is small and cooled off quickly
d) nighttime on the Moon is very cold
e) the Moon has no greenhouse effect
22. Roughly how deep (in miles) is the Earth's breathable atmosphere?
a) 1 b) 3 c) 30 d) 100 e)300
23. The Earth's breathable atmosphere is made mostly of
a) argon
b) neon
c) nitrogen
d) oxygen
e) carbon dioxide
24. Mercury's sunward surface is hot because of
a) its carbon dioxide atmosphere
b) evaporation of water from its oceans
c) heat generated by meteoric impact
d) heat generated by its volcanoes
e) its proximity to the Sun
25. Venus is hot mostly because of
a) its carbon dioxide atmosphere
b) evaporation of water from its oceans
c) heat generated by meteoric impact
d) heat generated by its volcanoes
e) its proximity to Mercury