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Which has the greater specific heat capacity; the filling of a hot piece of pie or the
crust?
A) the filling
B) the crust
C) depends on the temperature
Answer:
The equivalent (combined) resistance of 1-ohm, 2-ohm, and 3-ohm in series is about
A) 1 ohm.
B) 1.8 ohms.
C) 6 ohms.
D) 9 ohms.
Answer:
Which type of weather is characterized by spiral storms with winds of up to 300
km/hour?
A) hurricanes
B) tornadoes
C) tropical depressions
D) tropical storms
Answer:
The image below shows a beam of radiation passing between two electrically charged
plates.
Which of the beams is due to a positively charged helium nucleus?
A) a
B) b
C) c
D) all of the above
E) none of the above
Answer:
Air that flows northward from the horse latitudes in the Northern Hemisphere produces
the
A) Gulf Stream.
B) trade winds.
C) westerlies.
D) Kuroshio current.
Answer:
What makes Europa the most likely place extraterrestrial life will be found in our solar
system?
A) It has an ocean of liquid water, which is warmed by tidal force interaction with
Jupiter, and may house underwater volcanic thermal vents.
B) It has an ocean of liquid water, and there is increasing evidence of phytoplankton
activity, particularly as shown by ongoing spectral analysis.
C) It has a hydrogen ocean and moderate levels of oxygen in its atmosphere, which is
gradually producing water through frequent lighting strikes.
D) Actually, Io is the most likely place to find life, due to its high level of volcanic
activity.
Answer:
How does the wave model of electrons orbiting the nucleus account for the fact that the
electrons can have only discrete energy values?
A) Electrons are only able to vibrate at particular frequencies.
B) When an electron wave is confined, it is reinforced only at particular frequencies.
C) The energy values of an electron only occur where its wave properties and
probability clouds are mutually reinforcing.
D) The wave model accounts for the types of orbitals an electron may occupy, not it's
energy levels.
Answer:
When light reflects from a polished surface, there is a change in its
A) frequency.
B) wavelength.
C) speed.
D) all of the above
E) none of the above
Answer:
Strictly speaking, it is correct to say that voltage
A) flows through a circuit.
B) flows across a circuit.
C) is impressed across a device in a circuit.
D) all of these
Answer:
Which one of the following is not a type of plate collision?
A) continental divergence
B) oceanic-continental
C) continental-continental
D) oceanic-oceanic
Answer:
Compared with a motor, a generator is
A) one and the same.
B) its opposite.
C) of an entirely different design.
Answer:
A bird can sit harmlessly on a high-voltage wire because
A) the wire is insulated.
B) no potential difference is across the birds feet.
C) current is inside, not outside, the wire.
D) the net charge on a current-carrying wire is zero.
E) all of the above
Answer:
Which of the following shoreline features does not belong in association with the
others?
A) sea stack
B) sea caves
C) spit
D) sea arch
Answer:
The temperature at the bottom of Lake Tahoe, high in the Sierra Mountains in
California, at this moment is
A) below 4C.
B) 4C.
C) above 4C.
D) uncertain.
Answer:
If we compress 4.5 billion years into a calendar year, humans make their mark on the
calendar
A) the very last minute of New Years Eve.
B) on December 25th.
C) at 12:00 pm, December 30th.
D) at 11:50 pm, December 31st.
Answer:
An atom absorbs or emits only particular frequencies of light. White light bends into a
glass prism and separates into a rainbow of colors. In which of these two scenarios does
the electromagnetic radiation behave as a wave? As a particle?
A) Absorption of light shows wave behavior while bending of light shows particle
behavior.
B) Absorption of light shows particle behavior while bending of light shows wave
behavior.
C) Both absorption and bending of light show particle behavior.
D) Both absorption and bending of light show wave behavior.
Answer:
List the following bonds in order of increasing polarity.
A) N-O < N-N < N-F < H-F
B) N-N < N-O < N-F < H-F
C) H-F < N-F < N-O < N-N
D) N-N < N-O < H-F < N-F
Answer:
From Earth, one satellite appears to overtake another. The faster satellite that is seen to
overtake the other is
A) higher.
B) lower.
C) can't say
Answer:
A glacier forms when
A) snow accumulates to form ice and the ice mass begins to flow under its own weight.
B) temperatures do not rise above freezing.
C) snow moves downslope under the influence of gravity.
D) meltwater at the base of a snowmass contributes to downslope flow.
Answer:
When light is refracted, there is a change in its
A) frequency.
B) wavelength.
C) both of these
D) neither
Answer:
The primary evidence that the outer core is molten is an abrupt
A) increase in the velocity of P-waves, but no increase in S-waves.
B) increase in the velocity of L-waves.
C) stop of S-wave propagation, and a decrease in P-wave velocity.
D) stop of P-wave propagation, and a decrease in S-wave velocity.
Answer:
The most characteristic feature of sedimentary rocks is that they are
A) observed in great thicknesses.
B) formed in layered sequences-strata.
C) fossiliferous.
D) made from unconsolidated sediments.
Answer:
The rapid change of an electric field induces
A) a stronger electric field.
B) a magnetic field.
C) both of these
D) none of the above
Answer:
When a crate slides down an incline at a constant velocity it is
A) in dynamic equilibrium.
B) not in dynamic equilibrium.
C) in a state of being in and out of dynamic equilibrium.
D) none of the above
Answer:
The electric resistance of a superconductor is
A) zero.
B) infinite.
C) usually lower than ordinary resistors.
D) none of the above
Answer:
Almost all of Earth's supply of energy comes from
A) the oceans.
B) Earth's interior.
C) the Sun.
D) carbon dioxide.
Answer:
Why doesn't uranium ore spontaneously undergo a chain reaction?
A) Uranium ore must be "weapons' grade" in order for it to undergo chain reaction.
B) Uranium ore is mostly non-fissionable isotope U-238 and undergoes a chain reaction
only if mixed with a moderator to slow down the neutrons.
C) Uranium ore does spontaneously undergo slow chain reaction over time finally
resulting in it becoming lead.
D) Uranium ore, mostly U-235, must be enriched with U-238 in order for it to undergo
a chain reaction.
Answer:
The heat of vaporization of ethyl alcohol Lv is about 200 cal/g. That means that 1 gram
of this refrigerant upon vaporization would release
A) less then 200 calories.
B) 200 calories.
C) more than 200 calories.
Answer:
The daily motion of celestial objects in the sky is caused by
A) the rotation of our planet about its axis.
B) the revolution of our planet around the Sun.
C) the movement of our planet within the Milky Way.
D) the tilt of Earth's axis.
Answer:
The speed of a sound wave in air depends on
A) its frequency.
B) its wavelength.
C) the air temperature.
D) all of the above
E) none of the above
Answer:
The pitch of a musical sound is most related to
A) wavelength.
B) frequency.
C) speed.
D) amplitude.
E) all of the above
Answer:
