Where does most rainfall on Earth finally end up before becoming rain again?
A) underground
B) in lakes
C) in the oceans
D) on the ground surface
Answer:
In a battery, the following oxidation-reduction reactions are taking place:
Mn2O3 + ZnO → 2 MnO2 + Zn
What is undergoing an oxidation as written?
A) Zn
B) ZnO
C) MnO2
D) Mn2O3
E) none of the above
Answer:
How many covalent bonds would the following atom usually form?
A) 3
B) 2
C) 1
D) 5
E) would usually not form any covalent bonds
Answer:
Perturbations of planets are due to
A) interplanetary forces.
B) deviations from straight-line paths.
C) uneven masses of planets.
D) none of the above
Answer:
Why doesn’t the sodium atom gain seven electrons so that its third shell becomes the
filled outermost shell?
A) It would be too difficult for another atom to lose seven electrons.
B) Only six additional electrons are required to fill the outermost shell of sodium.
C) In gaining seven more electrons, sodium’s fourth outer shell becomes filled.
D) Sodium’s nuclear charge is not strong enough to hold that many more electrons.
Answer:
Two life preservers have identical volumes, one filled with Styrofoam and the other
filled with sand. When each is worn by swimmers, one swimmer floats and the other
sinks. Interestingly, the buoyant force is actually greater on the life preserver that
A) sinks.
B) floats.
C) same either way
D) none of the above
Answer:
The Universal Gravitational Constant G was first measured by
A) Galileo.
B) Newton.
C) Cavendish.
D) none of these
Answer:
What is the number of grams of CO2 produced if you combust 0.50 mole of CH4
according to the following balanced equation?
CH4 + 2 O2 → CO2 + 2 H2O
A) 22 g
B) 10 g
C) 44 g
D) 32 g
E) 1 g
Answer:
The following reaction is used to make the polymer described below. What is the other
starting material?
A) HOCH2CH2OH
B) H2O
C) HOCH2CH3
D) H2C CH2
E) HOCH2CH2CH2CH2OH
Answer:
Most white dwarfs
A) have relatively hot surfaces.
B) have relatively cool surfaces.
C) evolve into black holes.
D) are about as dense as their parent stars.
Answer:
If an object’s mass decreases while a constant force acts on it, the acceleration
A) decreases.
B) remains the same.
C) increases.
D) will be zero.
Answer:
In what region of the Sun is solar energy generated?
A) the outer surface
B) the inner surface
C) the mid-interior
D) the inner core
Answer:
In a meandering stream, deposition of sediment occurs on
A) the outer side of the meander.
B) the inner side of a meander.
C) the bottom of the stream channel.
D) both sides of a meander.
Answer:
A transformer for a laptop computer converts a 120-V input to a 24-V output.
Compared with the number of turns on the primary coil, the secondary has
A) 1/5 as many turns.
B) 5 times as many turns.
C) the same number of turns.
D) none of the above
Answer:
We are warmed on a hot moist day because water molecules in the air striking our
bodies
A) transfer some of their kinetic energies to us.
B) gain kinetic energy as they change state.
C) form an insulating layer on our bodies.
Answer:
Metamorphism caused by the close proximity of a magma source is called
A) contact metamorphism.
B) dynamic metamorphism.
C) regional metamorphism.
D) none of these
Answer:
Lillian pulls on a 10-kg wagon with a constant force of 30 N. What is the wagon’s
acceleration?
A) 0.3 m/s2
B) 3.0 m/s2
C) 10 m/s2
D) 30 m/s2
E) 300 m/s2
Answer:
As waves enter shallow water, wave speed
A) decreases, causing the wave to bend perpendicular to the shore.
B) increases, causing the wave to bend parallel to the shore.
C) decreases, causing the wave to bend parallel to the shore.
D) increases, causing the wave to bend perpendicular to the shore.
Answer:
The higher the temperature of an object, the
A) higher the frequency of emitted radiation.
B) lower the frequency of emitted radiation.
C) longer the wavelength of emitted radiation.
D) none of the above
Answer:
Meanders
A) migrate downstream.
B) shorten the stream.
C) migrate upstream.
D) remain in one place.
Answer:
Most of the batholithic-sized plutons found in the continents are composed of
A) obsidian.
B) basalt.
C) granite.
D) sandstone.
Answer:
The gush of steam that issues from the escape valve of a pressure cooker is relatively
cool
A) close to the opening.
B) above the opening where vapor is visible.
C) both of these
D) none of the above
Answer:
The crustal surface varies in
A) composition, density, and thickness.
B) isostasy, density, and rock competence.
C) thicknessthe oceanic crust is thinner than the continental crust.
D) densitythe oceanic crust is heavier than the continental crust.
Answer:
A sound wave and a light wave have identical
A) speeds.
B) wavelengths.
C) frequencies.
D) all of the above
E) none of the above
Answer:
The predominant gas in the atmosphere of Mars is
A) oxygen.
B) nitrogen.
C) water vapor.
D) carbon dioxide.
E) methane.
Answer:
The buoyant force that acts on a submerged object is equal to
A) the object’s weight.
B) the object’s volume.
C) both the weight and volume of the object.
D) the weight of water it displaces.
Answer:
Upon combustion, about how many grams of water vapor are produced from every 16
grams of methane, ?
+ 2 → + 2 O
A) 16 grams
B) 18 grams
C) 36 grams
D) 8 grams
Answer:
It takes 40 J to push a large crate 4 m across a floor. The force exerted on the crate is
A) 4 N.
B) 10 N.
C) 40 N.
D) 160 N.
E) 1600 N.
Answer:
A 1000-kg truck moving at 10 m/s that brakes to a stop in 5 s has an average braking
force of
A) 1000 N.
B) 2000 N.
C) 3000 N.
D) 4000 N.
E) 5000 N.
Answer:
When you leave your warm house for an hour or so on a cold day, to save energy you
should turn the thermostat
A) down.
B) up.
C) off.
D) to room temperature.
Answer:
A kilogram is a unit of
A) mass.
B) weight.
C) both the same
D) none of the above
Answer:
With no air resistance, a projectile fired at 50 has the same range as if it were fired at
A) 40.
B) 45.
C) 55.
D) 60.
Answer:
Which of the above sections of this molecule would be considered a saturated portion
of the molecule?
A) a
B) b
C) c
D) a and b
E) all of the above
Answer:
Which is higher in an endothermic reaction: the potential energy of the reactants or the
potential energy of the products?
A) The potential energy of the products is higher than the potential energy of the
reactants.
B) The potential energy of the reactants is higher than the potential energy of the
products.
C) The potential energy of the reactants is the same as the potential energy of the
products.
D) In the early stages of the reaction the potential energy of the reactants is higher. In
the later stages, the potential energy of the products is higher.
Answer:
What are some of the uncertainties in obtaining radiometric carbon dates?
Answer:
What is an electric current? How does it move in a wire? How fast do the electrons
move?
Answer:
What is surface ocean circulation primarily driven by?
Answer:
Briefly describe the different types of plate boundaries.
Answer:
List the seven physical properties for identifying minerals.
Answer:
Distinguish between ac and dc. When you plug a light bulb into a wall outlet, where is
the source of electrons?
Answer:
What is the approximate density of a fish, compared with the density of water? Defend
your answer.
Answer:
What is resonance and the conditions for resonance? Give examples.
Answer:
Under what conditions does a glacier front advance? Under what conditions does a
glacier front retreat?
Answer:
From a molecular point of view, explain why evaporation is a cooling process. What
cools?
Answer:
When a boulder and a pebble are dropped, why does the pebble pick up speed as
quickly as the boulder, even though less gravity acts on it? In other words, why do both
accelerate equally?
Answer:
Distinguish between a star and a planet. Which glows, or do they both glow?
Answer:
Identify erosional features of the shoreline. Identify depositional features of the
shoreline.
Answer:
Give three examples of the equilibrium rule that are not cited in the textbook.
Answer:
What is the polar front and how does it influence the development of the polar jet
stream?
Answer:
Explain in terms of buoyant force how a fish is able to rise and sink in water. Contrast
this to the way a submarine rises and sinks.
Answer:
How is stepping off a curb similar to taking a ride aboard an orbiting space vehicle?
Answer: