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What color are the stars with the hottest photosphere?
A) White
B) Yellow
C) Red
D) Blue
Comets are composed of ______________.
A) dust and ice
B) rock
C) helium
D) lead
E) iron
The Mercalli scale was used to measure
A) tornados.
B) earthquakes.
C) tsunamis.
D) hurricanes.
A system of an electron, a proton, and a neutron has a net charge of
A) +1.6 x 10-19 C.
B) "1.6 x 10-19 C.
C) 3.2 x 10-19 C.
D) zero.
Take a cup of water, add sugar, and stir. If the resulting solution contains sugar crystals
that do not dissolve, the solution is said to be
A) an unsaturated solution.
B) a saturated solution.
C) a homogeneous solution.
D) none of these.
How many molecules are in 1.00 mol of sulfur dioxide, SO2?
A) 64.1
B) 64.1 x 6.02 x 1023
C) 12.0 x 1023
D) 6.02 x 1023
Which of the following is not a feature of a good index fossil?
A) Numerous specimens found
B) Occurrence limited to a few localities
C) Easily identified species
D) Limited time span of existence
The universe seems to be about how many years old?
A) 232 billion
B) 6 billion
C) 13.7 billion
D) 1 billion
The general formula is that of
A) an amide.
B) an alkyl halide.
C) an alcohol.
D) none of these
The interior of a large mass of food in a microwave oven must be heated mainly by
A) radiation.
B) conduction.
C) convection.
D) radioactivity.
Stars in the process of forming are called
A) giant planets.
B) brown dwarfs.
C) red supergiants.
D) protostars.
Artificial transmutations are generally achieved using
A) Geiger counters.
B) particle accelerators.
C) tokamaks.
D) mass spectrometers.
The half-circle that defines the starting point for designating longitude on the celestial
sphere is called the
A) vernal equinox.
B) ecliptic.
C) celestial prime meridian.
D) Greenwich meridian.
The wearing away of soil and rock and the subsequent downslope movement of the
fragments are called
A) erosion.
B) weathering.
C) cross-cutting.
D) deposition.
Brown dwarfs are often described as
A) quasars.
B) giant planets.
C) failed stars.
D) pulsars.
If a wave has a frequency of 8 Hz, it has a period of
A) 1/8 s.
B) 8.5 s.
C) 8 s.
D) 4 s.
The formula mass of sulfuric acid, H2SO4, is
A) 98 u.
B) 100 u.
C) 66 u.
D) 7 u.
The kinetic energy of a pendulum is greatest
A) when its potential energy is greatest.
B) at the top of its swing.
C) at the bottom of its swing.
D) when its total energy is greatest.
The three types of plate boundaries are called convergent, divergent, and
______________ boundaries.
A) strike
B) slip
C) transform
D) none of these
Stalagmites are
A) Rocks solidified from molten material below ground.
B) Consolidated sediment deposited in layers.
C) Dripstone formations that form on cavern floors.
D) Dripstone formations that form on cavern ceilings.
Which of the following is notconsidered a major physical science:
A) Physics
B) Astronomy
C) Geology
D) Biology
E) Meteorology
A change of phase takes place at a constant
A) temperature.
B) volume.
C) heat.
D) pressure.
The physical disintegration and chemical decomposition of rock at or near Earth's
surface is called
A) weathering.
B) gradation.
C) erosion.
D) none of these.
The smaller portion of a solution is generally called the
A) salt.
B) solute.
C) molar concentrate.
D) solvent.
Propene and cyclopropane are
A) the same compound.
B) isomers.
C) neither isomers nor the same compound.
The ______________ distance is used in calculating work.
A) normal
B) square of
C) perpendicular
D) parallel
Who discovered radium?
A) Marie and Pierre Curie
B) Ernest Rutherford
C) Henri Becquerel
D) Niels Bohr
Which is nota possible value for the principal quantum number n?
A) 3
B) 7
C) 3/2
D) None of these
When an unstable Es nucleus undergoes gamma decay, the nucleus formed is that of
A) Es.
B) Md.
C) Cf.
D) Bk.
E) Fm.
The metric prefix that means one thousand (1000) is
A) kilo-.
B) centi-.
C) mega-.
D) milli-.
For the multiplication of 7.443 m times 8.00 m, the result should be reported with how
many significant figures?
A) Two
B) One
C) Three
D) Four
E) Seven
Lightning damage comes chiefly from ______________ discharge.
A) intracloud
B) air
C) cloud-to-cloud
D) cloud-to-ground
Which of the following is(are) found mainly between Mars and Jupiter?
A) Asteroids
B) Meteoroids
C) Comets
D) Interplanetary dust
Familiar groups of stars that are parts of a constellation or parts of different
constellations are called
A) configurations.
B) asterisms.
C) major sequences.
D) local groups.
An apple weighs approximately one ______________.
According to the law of reflection, the angle of reflection is equal to ______________.
The "billiard ball model" of the atom is associated with a scientist named
______________.
A compound formed from atoms from the far left and the far right of the periodic table
is probably a(n) ______________ compound.
The antiparticle of the electron is called the ______________.
Naturally occurring uranium ultimately decays to isotopes of the element named
______________.
The cloud root name meaning "heap" is ______________.
The second member of the alkane series, CH3CH3, is named _____________.
An automobile traveling on a straight, level road at 15 km/h speeds up to 90 km/h in 30
s. What was the magnitude of the auto's acceleration, in meters per second squared?
When the Sun is on the meridian, it is by definition ______________ local solar time.
With a constant braking force, the stopping distance of a car is proportional to
______________.
The element ______________ was the gas used in the Hindenburg.
The three principal types of mountain building are fold, fault-block, and
______________.
A high-pressure air mass that moves over a region and then becomes stationary may
give rise to a(n) ________________ inversion.
No nuclide with an atomic number greater than ______________ is stable.
In the SI, weight is expressed in units of ______________.
Besides fossil fuels, the only other significant commercial sources of energy are
______________ and ______________.
Three resistors, 10 , 20 , and 30 , are wired in series and connected to a 120-V
battery. How much current flows in the circuit?
