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______________ is the major moon of Neptune.
A) Triton
B) Titan
C) Ganymede
D) Europa
E) Callisto
The oldest evidence of life on Earth dates back to about how many years ago?
A) 65 million
B) 3.8 million
C) 3.5 billion
D) 570 million
The closest star to the Sun is named _______________.
A) Proxima Centauri
B) Sol
C) Jupiter
D) Polaris
Antiquity's greatest observer of stars was named
A) Hipparchus.
B) Eratosthenes.
C) Aristotle.
D) Imhotep.
When potassium and sulfur react to form potassium sulfide, an ionic compound,
A) each sulfur atom loses two electrons.
B) each sulfur atom loses one electron.
C) each potassium atom loses one electron.
D) each potassium atom loses two electrons.
Dripstone formations that form on cavern floors are called _____________.
A) stalactites
B) pool stones
C) stalagmites
D) sedimentary
The San Andreas fault in California is thought to be a boundary of two plates
A) that are separating from one another.
B) where one is pushing over the top of the other.
C) that are sliding horizontally past one another.
D) that are basically at rest.
The structural region of Earth that has the greatest volume is the
A) crust.
B) outer core.
C) mantle.
D) inner core.
Calculate the energy En(in eV) of a hydrogen atom's electron with n= 4.
A) "54 eV
B) "3.4 eV
C) "0.85 eV
D) "1.7 eV
In the equation ac= v2/rfor centripetal acceleration, the v stands for
A) volume.
B) very.
C) speed.
D) velociraptor.
The study of fossils is called
A) paleontology.
B) biology.
C) geology.
D) history.
An air mass derives its characteristics from its
A) temperature.
B) surroundings.
C) location.
D) source region.
During a severe thunderstorm, it is advisable to
A) seek shelter under a tree.
B) do laundry or watch TV.
C) call someone on the phone.
D) do none of these things.
A meteor ______________ results when a large number of meteoroids enter Earth's
atmosphere.
A) fall
B) landing
C) group
D) explosion
E) shower
Six months of darkness at the South Pole begins when the Sun is at the
A) winter solstice.
B) summer solstice.
C) autumnal equinox.
D) vernal equinox.
Which of the following ions is isoelectronic with an argon atom?
A) Cl-
B) Na+
C) F-
D) S2+
Who discovered the nucleus of the atom in 1911?
A) Thomson
B) Rutherford
C) Dalton
D) Bohr
A Group 6A nonmetal would be most likely to form an ionic bond with an element of
Group
A) 4A.
B) 8A.
C) 2A.
D) 5A.
In a conductor, what moves?
A) Electrons
B) Neutrons
C) Quarks
D) Protons
Which igneous rock has dark color (low silica content) and small grains (fine texture)?
A) Gabbro
B) Granite
C) Rhyolite
D) Basalt
CFCs are
A) alcohols.
B) hydrocarbons.
C) alkyl halides.
D) amides.
If the magnitude difference between one star and another is 4, the stars differ in
brightness by a factor of
A) 2.51.
B) 10.
C) 3.
D) 39.7.
The magnitude of the acceleration of an object moving in a circle at constant speed is
A) inversely proportional to the speed squared.
B) inversely proportional to the speed.
C) inversely proportional to the radius of the circle squared.
D) inversely proportional to the radius of the circle.
After a major earthquake, the rocks may continue to adjust to their new positions,
causing additional vibrations called
A) aftershocks.
B) reverberations.
C) echoes.
D) none of the above.
The part of the mantle located directly below the lithosphere is called the
______________.
A) stratosphere
B) Mohorovicic discontinuity
C) mesosphere
D) asthenosphere
A hurricane watch is issued when
A) a tropical storm begins to form.
B) a hurricane has been sighted.
C) a storm surge has hit the coast.
D) there is a threat of hurricane conditions within 24 to 36 h.
The amount of heat necessary to change 1 kg of a liquid into a gas at the same
temperature is called the
A) entropy.
B) boiling point.
C) latent heat of vaporization.
D) latent heat of fusion.
The Pleistocene is a(n)
A) epoch.
B) era.
C) eon.
D) period.
Which of the following volcanoes is in the United States?
A) Paracutin
B) Surtsey
C) Mount Pele
D) Mount Saint Helens
Fluorescence occurs when samples of some materials are exposed to rays of which
EMR region?
A) Ultraviolet
B) Infrared
C) Visible
D) Microwave
Another name for solid carbon dioxide is
A) heavy water.
B) Epsom salt.
C) dry ice.
D) quicksilver.
Mount Saint Helens is the type of volcano known as a(n) ______________.
Complete and balance the equation: Mg + HC2H3O2
According to Planck's hypothesis, the energy of an oscillator is directly proportional to
its ______________.
We live in the ______________ epoch.
Layers of sediment, lava, and ash are originally laid down in a(n) ______________
position.
A student weighing 700 N climbs a flight of stairs 5.0 m high. Calculate the work done.
Gas, ______________, and pyroclastics are the three general products emitted during a
volcanic eruption.
Looking at the Moon, the "horns" of a waning crescent moon point toward the
______________.
Magnetic fields can deflect ______________ charges.
An object's ______________would be the same on Earth and on the Moon, but its
weight would be different.
If the ground-level air temperature is 20C, what is the air temperature at the top of the
troposphere (16 km), assuming a normal lapse rate?
Flashes from unseen lightning are called ______________.
One mole of aluminum consists of ______________ aluminum atoms.
Light traveling from a more dense to a less dense medium is refracted ______________
the normal.
What is the force of gravity acting on a 1-kg mass?
(g = 9.8 m/s2)
When an atom or ion gives up electrons, it is said to be ______________.
As a truck moves away from a person with its horn blowing, the person hears a
frequency ______________ than that of the horn.
The development of physics prior to about 1900 is called ______________ physics.
