Which of the following statements accurately describes the action of ozone?
A) It absorbs UV radiation and undergoes fragmentation.
B) It reflects UV radiation back into space.
C) It reflects heat back into space.
D) It emits UV radiation when excited by sunlight.
E) none of the above
Answer:
According to the principle of continuity, the velocity of a fluid multiplied by the
cross-sectional area through which it flows at one point will equal the product of
A) velocity and cross-sectional area at another point.
B) velocity and pressure at another point.
C) a constraint factor.
D) none of the above
Answer:
Compared to a single lamp connected to a battery, two identical lamps connected in
series to the same battery will draw
A) more current.
B) less current.
C) the same current.
Answer:
In orographic lifting, precipitation is associated with the
A) windward slope.
B) the leeward slope.
C) rain shadow.
D) Chinook.
Answer:
If an alcoholic beverage is 20 percent alcohol by volume, what is its proof?
A) 40 proof
B) 20 proof
C) 10 proof
D) Proof is a measure of flammability.
E) Proof is a measure of the age of a fermented beverage.
Answer:
The toy dunking bird of Figure 7.28 operates by way of
A) evaporation.
B) condensation.
C) both of these
D) none of the above
Answer:
The planet Jupiter takes a longer time to travel around the Sun than Earth because
Jupiter
A) has farther to go.
B) goes slower.
C) both of these
D) none of the above
Answer:
Which of the following statements describes an isotope?
A) element with the same number of protons but a different number of neutrons.
B) element with the same number of protons but a different number of electrons.
C) element with the same number of neutrons but a different number of electrons.
D) element with the same number of neutrons but a different number of protons.
E) none of the above
Answer:
Which of these properties describes a metal?
A) conducts heat very well
B) brittle
C) fragile
D) transparent
E) doesn’t conduct electricity very well
Answer:
Which produces more energy, the fissioning of a single uranium nucleus or the fusing
of a pair of deuterium nuclei? Why?
A) Fusing a pair of deuterium nuclei produces more energy because, unlike fission,
there is no radioactive waste product.
B) Fissioning a single uranium nucleus produces more energy since its mass is much
greater than that of a pair of deuterium nuclei.
C) Both the fissioning of a single uranium nucleus and the fusing of a pair of deuterium
nuclei produce the same amount of energy since the resulting products are the same.
D) Neither the fissioning of a single uranium nucleus nor the fusing of a pair of
deuterium nuclei produce any net amount of energy. On the contrary, both processes
require more energy than they produce.
Answer:
The main difference between a radio wave and a sound wave is
A) frequency.
B) wavelength.
C) energy.
D) amplitude.
E) basic nature.
Answer:
Surface air blowing inward to a center of low pressure can rise, expand, and
A) cool, often condensing into clouds that produce precipitation.
B) warm, producing generally clear skies.
C) cool, producing generally clear skies.
D) warm, often condensing into clouds that produce precipitation.
Answer:
What causes the jet streams to form?
A) pressure gradients
B) temperature gradients
C) pressure and temperature gradients
D) none of the above
Answer:
In the Northern Hemisphere, the winds of a tornado travel at speeds of up to 800 km/h
in a
A) clockwise direction.
B) counterclockwise direction.
Answer:
Air temperature and pressure ________ with increasing elevation and ________ as you
approach sea level.
A) decrease; increase
B) increases; decreases
C) cools and thins; warms and thins
D) cools and becomes denser; warms and becomes more dense
Answer:
Electrons in glass have a natural frequency in the
A) infrared region of the spectrum.
B) visible region of the spectrum.
C) ultraviolet region of the spectrum.
Answer:
Which of the following elements is the most stable from a nuclear point of view?
A) iron
B) hydrogen
C) argon
D) uranium
E) All are equally stable.
Answer:
A transformer requires
A) alternating voltage.
B) direct current.
C) both of these
D) none of the above
Answer:
The warming of the lower atmosphere (the greenhouse effect) results from the
A) absorption of long-wave solar radiation.
B) reflection of long-wave terrestrial radiation.
C) absorption of long-wave terrestrial radiation by atmospheric gases.
D) release of atmospheric gases into the ozone layer.
Answer:
If there were no gravity, a cannonball fired upward at 45 would follow a straight-line
path. Due to gravity, however, at the end of 3 s it is
A) 5 m below the straight line.
B) 10 m below the straight line.
C) 15 m below the straight line.
D) 20 m below the straight line.
E) more than 20 m below the straight line.
Answer:
At the end of December, all of the Southern Hemisphere is in
A) darkness.
B) light.
C) summer.
D) winter.
Answer:
While you are standing, your blood pressure is normally greatest in your
A) head.
B) heart.
C) feet.
D) same in each
Answer:
Which of the following is the hallmark of a saturated hydrocarbon?
A) a hydrocarbon where carbon has only a single bond to two or more other carbons
B) a hydrocarbon that is completely dissolved in water
C) a hydrocarbon where carbon has multiple bonds to one or more other carbons
D) any molecule that is completely dissolved in a hydrocarbon solvent
E) none of the above
Answer:
For the following reaction, identify whether the compound in bold is behaving as an
acid or a base.
H3PO4 + H2O ⇌H2PO4
– + H3O+
A) acid
B) base
C) neither
D) both
E) none of the above
Answer:
At a certain elevation, the ________ , the air becomes saturated and water-vapor
molecules ________.
A) lifting condensation level; condense to mark the base of cloud formation
B) equilibrium level; condense to mark the base of cloud formation
C) lifting condensation level; stabilize and mark the upper limit of cloud formation
D) equilibrium level; stabilize and mark the upper limit of cloud formation
Answer:
Science is a body of knowledge that extends back to
A) humankind’s beginnings.
B) Greece in the 7th century B.C.
C) Italy in the 16th century.
D) the time of Galileo.
Answer:
Detailed mapping of the ocean floors revealed
A) huge mountain ranges beneath the oceans.
B) deep trenches near some of the continents.
C) that the oceans are equally deep at all locations.
D) huge mountain ranges on the ocean floor, and deep trenches near some of the
continents.
Answer:
Heat is
A) temperature.
B) thermal energy.
C) thermal energy flowing from hot to cold.
D) radiant energy.
Answer:
Life forms in the Precambrian included
A) trilobites.
B) brachiopods.
C) coelacanths.
D) cyanobacteria.
Answer:
If an ionic bond is stronger than a dipole-dipole interaction, how can water dissolve an
ionic compound?
A) The ion-dipole interactions of a bunch of water molecules gang up on the strong
ionic bond and pull it into the solution.
B) The ionic bond is weakened by the ion-dipole interactions and ionic repulsion ejects
the ions from the crystal.
C) The ion-dipole interaction causes the ions to heat up and vibrate free of the crystal.
D) The ions never overcome their interatomic attraction and therefore are not soluble.
E) none of the above
Answer:
If you quickly run toward the orchestra at a concert, the frequency of the sound you
hear will be
A) decreased.
B) increased.
C) neither of these
Answer:
No magnetic force acts on a current carrying wire when it
A) carries a very small current.
B) is perpendicular to the magnetic field.
C) either or both of these
D) none of the above
Answer:
Which of the following is a heteroatom?
A) O
B) C
C) H
D) A and B
E) all of the above
Answer:
An object in motion is an object that has
A) acceleration.
B) impulse.
C) momentum.
D) all of the above
E) none of the above
Answer:
A key feature of the Falkirk Wheel in Scotland is that opposite caissons have the same
weight when both are brim-full of water
A) and boats in each have about equal weights.
B) and at least one boat is in each caisson.
C) regardless of the weights of boats or no boats in each.
D) none of the above
Answer: