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A chocolate chip cookie is a good example of
A) a compound.
B) an element.
C) a homogeneous mixture.
D) a heterogeneous mixture.
Calculate the frequency in hertz of photons of light with energy of 9.90 x 10-19 J.
A) 0.67 x 1014Hz
B) 0.67 x 1015Hz
C) 1.49 x 1015Hz
D) 1.49 x 1014Hz
If an object on Earth weighs 300 N, what is its weight in pounds?
A) 67
B) 300
C) 31
D) 660
E) 1300
The Holocene epoch began when
A) the glaciers last retreated from North America.
B) a period of intense volcanic activity ended.
C) an asteroid hit Chicxulub.
D) Pangaea began breaking up.
The term cleavage refers to the tendency of some minerals to
A) resist scratching.
B) break along definite smooth planes.
C) break into equal-sized halves.
D) scratch other minerals.
The major credit for the development of the periodic table goes to
A) Berzelius.
B) Lavoisier.
C) Boyle.
D) Mendeleev.
If Earth's axis were tilted at 40, the seasons of the year would
A) be shorter.
B) be harsher.
C) be longer.
D) not change.
E) be milder.
Which of the following is not a general type of faulting?
A) Forward
B) Normal
C) Strike-slip
D) Reverse
Which of the following is ranked 7 on the Mohs scale?
A) Talc
B) Gypsum
C) Diamond
D) Quartz
Which of the following has the most moons?
A) Mercury
B) Venus
C) Earth
D) Mars
The Great Dying occurred at the end of the ______________ era.
The largest plutons are called
A) sills.
B) dikes.
C) laccoliths.
D) batholiths.
Geologists view the part of our planet that is called the ______________ as consisting
of a number of close-fitting plates.
A) mesosphere
B) lithosphere
C) asthenosphere
D) none of these
Which of the following is formed by direct freezing of water droplets?
A) Dew
B) Snow
C) Sleet
D) Frost
A bubble-producing soda is an example of
A) an unsaturated solution.
B) a saturated solution.
C) a supersaturated solution.
D) a completely unsaturated solution.
By definition, the gain of electrons by an atom or ion is called
A) neutralization.
B) reduction.
C) oxidation.
D) displacement.
The absolute magnitude of a celestial object is the apparent magnitude it would have if
it were placed how far from the Earth?
A) 10 parsecs
B) 3.26 light-years
C) 1 astronomical unit
D) None of the above
During a solar eclipse, the umbra moves across Earth's surface generally from
A) east to west.
B) west to east.
C) south to north.
D) north to south.
The process of obtaining energy by splitting a large nucleus is called
A) nucleogenesis.
B) fusion.
C) bombardment.
D) fission.
An object that is moving in a linear path with an acceleration in the direction opposite
to the motion has a(n) ______________ velocity.
A) constant
B) increasing
C) decreasing
D) none of these
Which of the following sound frequencies lie(s) in the audible range?
A) 29 Hz
B) 11 kHz
C) 3500 Hz
D) All of these
To cause an object to move in a circle, a ______________ force is necessary.
A) balanced
B) functional
C) centripetal
D) centrifugal
The radius of Earth's mantle is about
A) 870 km.
B) 2900 km.
C) 1050 km.
D) 5800 km.
Celestial longitude is called
A) declination.
B) the parsec value.
C) the zenith angle.
D) right ascension.
Hardness is a comparative property that refers to the ability of a mineral to resist
A) fracturing.
B) cleaving.
C) scratching.
D) crushing.
The lowest places on Earth's surface are called __________ trenches.
A) plateau
B) mid-oceanic
C) deep-sea
D) none of these
When an electron goes from an excited state to the ground state,
A) energy is absorbed.
B) a photon is absorbed.
C) a photon is emitted.
D) none of these occur.
The energy of a system
A) always increases.
B) always remains constant.
C) decreases when work is done by the system.
D) decreases when work is done on the system.
An automobile's acceleration cannotbe changed by using the
A) gas pedal.
B) brake pedal.
C) steering wheel.
D) stick shift.
E) turn signal.
Currently, in the United States, which fuel is utilized to produce the majority of
electrical power?
A) Oil
B) Natural gas
C) Coal
D) Nuclear
Solutions are
A) homogeneous mixtures.
B) heterogeneous mixtures.
C) nonuniform mixtures.
D) none of these.
The boundary between two air masses is called a
A) division.
B) border.
C) front.
D) storm.
The term detergentmeans "cleansing agent" and commonly refers to a(n)
______________ substitute.
The unit of density in the mks system is ______________.
The blueness of the sky results from ______________.
A 5.00-kg object is lifted from the floor to a shelf. The object's new gravitational
potential energy relative to the floor is 102 J. What is the height of the shelf?
Air pollution results from ______________ combustion of ______________ fuels.
The angular measure in degrees north or south of the celestial equator is called
_______________.
Compounds of carbon are classified as ______________ compounds.
The quantity hin the Bohr theory is called ______________.
What does 4 10-12times 3 10-8divided by 2 1024equal?
Jet propulsion can be explained in terms of Newton's third law and the
______________.
The type of plate boundary at which one plate collides with another and subduction
occurs is called ______________.
The color of the light in the visible region that has photons of the lowest energy is
______________.
The rate of flow of electric charge is measured in units called ______________.
In changing from one form to another, energy is always ______________.
