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Where does most of the solid mass of raw sewage end up after being collected at a
treatment facility?
A) It is injected into the water table.
B) It is buried in landfills.
C) It is sold to farmers for fertilizer.
D) It is tapped for the generation of methane gas.
Answer:
Light shines on a pane of green glass and a pane of clear glass. The temperature will be
higher in the
A) clear glass.
B) green glass.
C) neither
Answer:
The attraction of Earth on a skydiver pulls the diver downward. The reaction to this
force is
A) air resistance the skydiver encounters while falling.
B) Earth pulling upward on the skydiver.
C) the attraction to the planets, stars, and every particle in the universe.
D) all of the above
E) none of the above
Answer:
The outer core is
A) rock.
B) plastic.
C) liquid.
D) the source for volcanoes.
Answer:
Which of the following has the greatest mass?
A) 1 mole of Pb
B) 1 mole of H2
C) 1 mole of Be
D) 1 mole of Na
E) All have the same mass.
Answer:
How do the electron-dot structures of elements in the same group in the periodic table
compare with one another?
A) The structures differ by exactly two electrons between vertically consecutive
elements.
B) The number of valence shell electrons increases by one for each element from the
top to the bottom of the group.
C) Elements of the same group have the same number of valence electrons.
D) The number of electrons in the electron-dot-structure will equal the group number
for each element of the group.
Answer:
What happens if you were to place a concentrated solution into a bag made of a
semipermeable membrane and were to then suspend it in a very dilute solution?
A) The size of the suspended bag would decrease.
B) The size of the suspended bag would increase.
C) The size of the bag would not change.
D) The solutions would eventually reach the same concentration.
E) only c and d
Answer:
Underground rivers can exist in
A) limestone aquifers.
B) science fiction.
C) all aquifers.
D) any of the above.
Answer:
If you have two molecules of TiO2, how many oxygen atoms would you have?
A) 4
B) 2
C) 3
D) 6
E) none
Answer:
A piece of taffy slams into and sticks to another identical piece of taffy at rest. The
momentum of the two pieces of taffy stuck together after the collision is the same as it
was before the collision. Kinetic energy is a different story, for part of it turns into heat.
What percentage of the kinetic energy converts into heat?
A) 0%
B) 25%
C) 50%
D) 75%
E) not enough information
Answer:
The fastest seismic wave is a
A) Primary wave.
B) Secondary wave.
C) Tertiary wave.
D) Rayleigh wave.
Answer:
What property primarily determines the effect of temperature on the solubility of gas
molecules?
A) the kinetic energy of the gas
B) the polarity of the gas
C) the molecular weight of the gas
D) the ionic strength of the gas
E) the dipole strength of the solvent
Answer:
A tsunami is unlike most other water waves mainly because it
A) is stronger.
B) has a very long wavelength.
C) moves very fast.
D) is energetic.
Answer:
A lamp rated 23W-120V means that it will deliver 23 W
A) when the voltage across it is 120 V.
B) whether or not it is connected to 120 V.
C) as long as the current is ac.
D) none of the above
Answer:
Earth's internal layers were discovered by studying
A) seismic waves.
B) the Mohorovicic discontinuity.
C) Rayleigh and Love waves.
D) convection cells.
Answer:
Acrobat Bart at the circus drops vertically onto the end of a see-saw, with his partner
Art equidistant from the fulcrum at the other end. Art is propelled straight upward a
distance twice that of Bart's dropping distance. Neglecting inefficiencies we see
A) the masses of Art and Bart are equal.
B) Art has half the mass of Bart.
C) need more information
Answer:
Two charged particles 1 m apart exert a 1-N force on each other. If the particles are
instead 0.25-m apart, the force on each particle will be
A) 1.0 N.
B) 2.0 N.
C) 4.0 N.
D) 8.0 N.
E) 16.0 N.
Answer:
Each of us weighs slightly less inside the ground floor of a skyscraper than we do on
the ground away from the skyscraper because the
A) gravitational force is shielded inside the building.
B) mass of the building attracts us upward slightly.
C) both of these
D) none of the above
Answer:
From the edge of a roof you throw a snowball downward that strikes the ground with
100 J of kinetic energy. Then you throw a second snowball upward with the same initial
speed, and this too falls to the ground. Neglecting air resistance, the second snowball
hits the ground with a kinetic energy of
A) less than 100 J.
B) 100 J.
C) 200 J.
D) more than 200 J.
E) none of the above
Answer:
Transform faults are areas of crustal
A) formation.
B) destruction.
C) subduction.
D) accommodation and plate movement.
Answer:
A ball rolling down an incline has its maximum kinetic energy at
A) the top.
B) half-way down.
C) three-quarters of the way down.
D) the bottom.
Answer:
Which of the following elements is a halogen?
A) argon (Ar)
B) lead (Pb)
C) chlorine (Cl)
D) indium (In)
E) lithium (Li)
Answer:
How many bonds between nitrogen and hydrogen are formed if you react nitrogen with
hydrogen according to the following reaction?
N2 + 3H2 → 2 NH3
A) 6
B) 2
C) 3
D) 1
E) 8
Answer:
When an apple that weighs 1 N is dropped and freely falls, the net force on the apple is
A) 0 N.
B) 0.1 N.
C) 1 N.
D) 10 N.
E) none of the above
Answer:
Which is more polar, a sulfur-bromine (S-Br) bond or a selenium-chlorine (Se-Cl)
bond?
A) A selenium-chlorine bond should be more polar because of a greater difference in
effective nuclear charge.
B) A selenium-chlorine bond should be more polar because of a smaller difference in
effective nuclear charge.
C) A sulfur-bromine bond should be more polar because of a greater difference in
effective nuclear charge.
D) A sulfur-bromine bond should be more polar because of a smaller difference in
effective nuclear charge.
Answer:
Suppose a miracle car has a 100% efficient engine and burns fuel having an energy
content of 40 MJ/L. If all resistant forces on this car traveling at highway speeds is
1000 N, what is the overall limit in distance per liter driven on the highway?
A) 30 km
B) 40 km
C) 50 km
D) more than 50 km
E) not enough information
Answer:
A math book and a science book are tied together with a length of string. With the string
taut, one book is pushed off the edge of a table. As it falls, the other book is dragged
horizontally across the table surface. With no friction, acceleration of the books is
A) zero.
B) g/2.
C) g.
D) between zero and g.
E) greater than g.
Answer:
Strictly speaking, when you step off a curb you are momentarily
A) in orbit.
B) weightless.
C) in space.
Answer:
Which of the following solutions is the most concentrated?
A) one liter of water with 1 gram of sugar
B) one liter of water with 2 grams of sugar
C) one liter of water with 5 grams of sugar
D) one liter of water with 10 grams of sugar
E) They all have the same volume.
Answer:
Is the air in your house a homogeneous or heterogeneous mixture?
A) homogeneous because it is mixed very well
B) heterogeneous because of the dust particles it contains
C) homogeneous because it is all at the same temperature
D) heterogeneous because it consists of different types of molecules
Answer:
What do the components of a conceptual model have in common?
A) All components interact with each other.
B) All components are mutually independent of each other.
C) The components have nothing in common. This is what differentiates a conceptual
model from a physical model.
D) Each component must correlate with a corresponding component of a physical
model.
Answer:
