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What is the preferred name for Mg3N2?
A) Magnesium trinitride
B) Magnesium nitride
C) Dimagnesium trinitride
D) Manganese nitrate
The apparent path that the Sun traces annually along the celestial sphere is called the
A) ecliptic.
B) heliosphere.
C) solstice circle.
D) celestial prime meridian.
Jet planes avoid bad weather by flying above it in the
A) stratosphere.
B) troposphere.
C) mesosphere.
D) thermosphere.
A quantity that gives the direction of a thermodynamic process is
A) entropy.
B) efficiency.
C) specific heat.
D) energy.
The process that effectively regulates Earth's average temperature is
A) the greenhouse effect.
B) Rayleigh scattering.
C) the dew point.
D) auroras.
A point in the universe where the density of matter and the gravitational field are
theoretically infinite is called a _______________.
A) singularity
B) duality
C) prominence
D) photon
Ions trapped in Earth's magnetic field give rise to
A) photosynthesis.
B) auroras.
C) ultraviolet radiation.
D) ozone.
The metric prefix that means ten (10) is
A) deci
B) deka
C) milli
D) centi
E) kilo
Radio waves are reflected by which of the following ion layers?
A) C
B) D
C) F
D) A
The lithosphere is
A) a collection of plates separated by oceans.
B) a collection of close-fitting plates.
C) viscous, flowing magma.
D) a solid, unbroken, spherical shell.
The symbol notation now used for elements was developed by
A) Dalton.
B) Berzelius.
C) Rutherford.
D) Bohr.
Which of the following is not one of the types into which rocks are classified?
A) Igneous
B) Orthoclase
C) Metamorphic
D) Sedimentary
Mechanical energy
A) is always the total energy of a system.
B) is the sum of the energies of motion and position.
C) is always conserved.
D) necessarily involves gravitational potential energy.
A river's suspended and bed loads may accumulate at its mouth and form
A) a delta.
B) a meander.
C) a stream.
D) none of the above.
Which of the following is not a metamorphic rock?
A) Sandstone
B) Schist
C) Slate
D) Marble
A star of magnitude 1 appears _______________ times brighter than a star of
magnitude 2.
A) 5.21
B) 3.14
C) 10
D) 2.51
The pollutant that affects the oxygen-carrying capability of the blood is
A) CO.
B) SOx.
C) CO2.
D) NOx
Subsurface soil that remains permanently frozen is called
A) a swamp.
B) a bogg.
C) permafrost.
D) none of these.
For which of the following is the acceleration constant?
A) Nonuniform speed
B) Free fall
C) Uniform circular motion
D) None of these
Large fractures in Earth's surface that are associated with the movement of lithospheric
plates are called ______________.
A) canyons
B) trenches
C) subduction zones
D) faults
Which of the following, along with O2, is an allotrope of oxygen?
A) O3
B) O2-
C) O
D) O4
The dome of water associated with a hurricane making landfall is called a
A) storm surge.
B) tide.
C) tidal wave.
D) flood.
Which of the following four objects has different kinetic energy?
A) An object of mass m moving with speed 4v
B) An object of mass 4m moving with speed 2v
C) An object of mass 16m moving with speed v
D) An object of mass 2m moving with speed 3v
E) None of these; all four objects have the same kinetic energy.
Sodium is an example of
A) A compound
B) A solution
C) An alloy
D) An element
Three resistors, 80 , 40 , and 60 , are wired in series and connected to a 120-V
battery. How much current flows in this circuit?
A) 0.67
B) 6.5
C) 2200
D) 0.00063
Wood from an ancient stump has a ratio of carbon-14 to carbon-12 that is one-eighth
that of new wood. About how old is the stump? (Carbon-14's half-life is 5730 years.)
A) 17,190 years
B) 11,460 years
C) 5730 years
D) 2865 years
When multiplying and/or dividing quantities, you should report
A) the result rounded to the same number of digits as there are in the quantity with the
greatest number of significant figures.
B) all the digits that show on your calculator.
C) only whole numbers.
D) the result rounded to the same number of digits as there are in the quantity with the
least number of significant figures.
Which gas gives the characteristic odor to smelling salts and some household cleaners?
A) Ammonia
B) Carbon dioxide
C) Chlorine
D) Ozone
Which igneous rock has light color (high silica content) and large grains (coarse
texture)?
A) Gabbro
B) Granite
C) Rhyolite
D) Basalt
Evidence of seafloor spreading along the Mid-Atlantic Ridge is given by
A) sea life.
B) remanent magnetism.
C) ocean currents.
D) glaciation.
Humphry Davy was able to discover six elements by using a new invention called the
______________.
An incredibly dense star so massive that light cannot escape from its surface is called
a(n) _______________.
The Pleistocene epoch is also referred to as the ______________.
The true edges of the continental landmasses are called the ______________.
CH3OH is the structural formula for the compound named ______________.
Most ______________ do their jobs by decreasing the activation energy for a reaction.
The major division of chemistry that deals with what substances are present and in what
quantities is called ______________chemistry.
The relative humidity is 100% at the ______________ temperature.
What are the latitude and longitude of a place on Earth directly opposite Columbia,
South Carolina, which is at 81W, 34N?
The first self-sustaining nuclear fission reaction was achieved in Chicago in 1942 under
the direction of a scientist named ______________.
Marble and gneiss are classified as ______________ rocks.
Rocks solidified from molten material, either below or above ground, are classified as
______________ rocks.
The bright side of the waxing crescent moon is toward the ______________.
The second shell of an atom can hold a maximum of ______________ electrons.
The measure of a material's capacity to transmit fluids is called the material's
______________.
At the time of a solar eclipse, the Moon is in ______________ phase.
On a particular day, the air temperature is 75F. If lowering the air temperature by 9
would cause the air to be saturated, what is the relative humidity?
