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A large block of wood and a small block of iron each register 2000 N on a weighing
scale. Taking buoyancy of air into account, which has the greater mass?
A) wood
B) iron
C) both the same
Answer:
A charged balloon illustrates that something can have a great amount of
A) potential energy and a low voltage.
B) voltage and a small potential energy.
C) both voltage and potential energy.
D) none of the above
Answer:
Compared with San Francisco, California, winter air temperatures and air density in
Denver, Colorado, are
A) the same.
B) cooler and thinner.
C) cooler and denser.
D) warmer and denser.
Answer:
Compared to other fundamental forces, the Universal Gravitational Constant G
indicates gravity to be a relatively
A) weak force.
B) strong force.
C) extremely strong force.
Answer:
An egg is placed at the bottom of a bowl filled with water. Salt is slowly added to the
water until the egg rises and floats. From this experiment, we conclude that
A) egg-shell calcium is repelled by sodium chloride.
B) the density of salt water exceeds the density of the egg.
C) buoyant force is not always exerted upward.
D) salt sinks to the bottom.
E) none of the above
Answer:
An unsorted mixture of rock material that is deposited directly by melting ice is called
A) drift.
B) outwash.
C) till.
D) snow.
Answer:
Fatty acid molecules can also align to form a bilipid layer that extends in 3-dimensions.
Shown below is a cross section of this structure. What is this structure called? (Hint: it
forms the basis of all life.)
A) DNA
B) a nucleoside
C) a cell
D) a gene
Answer:
When sea ice forms, what happens to the unfrozen water immediately adjacent to the
new sea ice?
A) the salinity decreases
B) the density increases
C) the water sublimates
D) the density decreases
Answer:
The Earth's magnetic field is generated in
A) outer space.
B) the crust.
C) the mantle.
D) the outer core.
Answer:
Joshua is attracted toward Earth by a 500-N gravitational force. The Earth is attracted
toward Joshua with a force of
A) zero.
B) 250 N.
C) 500 N.
D) 1000 N.
E) none of the above
Answer:
The lithosphere rides on top of the asthenosphere. Lithospheric movement causes
A) earthquakes, volcanic activity, and mountain building activity.
B) the subduction of continental crust under oceanic crust.
C) hot-spot activity as found in Hawaii.
D) widespread destruction.
Answer:
Troops break step when marching across a bridge to prevent
A) interference.
B) resonance.
C) wave motion.
D) frequency distortion.
Answer:
A drop in pressure is an indication of
A) an approaching cold front.
B) orographic lifting.
C) adiabatic expansion.
D) a stationary front.
Answer:
Carefully examine the following reaction sequence for the catalytic formation of ozone,
O3, from molecular oxygen, . Which chemical compound is behaving as the catalyst?
+ 2 NO → 2 N
2 N → 2 NO + 2 O
2 O + 2 → 2
A) nitrogen monoxide, NO
B) nitrogen dioxide, N
C) oxygen,
D) atomic oxygen, O
Answer:
Fire a cannonball from a cannon and it curves due to gravity. Shine a light from a
flashlight and it
A) curves per second the same as the cannonball.
B) follows a straight-line path with no curvature at all.
C) curves half as much as the cannonball.
D) curves slightly, but not as much per second as the cannonball.
Answer:
Rainbows exist because light is
A) reflected.
B) refracted.
C) both of these
D) none of the above
Answer:
Light travels faster in
A) thin air.
B) dense air.
C) same in each.
Answer:
Coal is considered to be a
A) biochemical sedimentary rock.
B) clastic sedimentary rock.
C) fossiliferous sedimentary rock.
D) chemical sedimentary rock.
Answer:
The formation of the supercontinent of Pangaea
A) resulted from the collision of all major land masses.
B) produced widespread mountain building in the Himalayas.
C) resulted in extensive volcanic activity and flood basalts.
D) all of these
Answer:
When a ball increases in speed by the same amount each second, its acceleration
A) also increases each second.
B) decreases each second.
C) is constant.
D) varies.
Answer:
In a home steam radiator, thermal energy is released mainly by
A) evaporation.
B) condensation.
C) sublimation.
D) none of the above
Answer:
Which of the following best describes a conceptual model of an atom?
A) a model that illustrates the tendency of an atom to undergo chemical bonding
B) a model that illustrates the physical structure of the atom
C) a model that represents the shape of the nucleus
D) a description of the location of the neutrons and protons in an atom
E) none of the above
Answer:
Science is concerned mainly with the
A) natural world.
B) spiritual world.
C) difference between right and wrong.
D) search for eternal truths.
Answer:
The force of gravity acts on all apples on an apple tree. Some apples are twice as far
from the ground. Such twice-as-high apples of the same mass, have
A) 1/4 the weight.
B) 1/2 the weight.
C) practically the same weight.
Answer:
A boat loaded with a barrel of water floats in a swimming pool. When the barrel of
water is poured overboard, the pool level
A) rises.
B) falls.
C) remains unchanged.
Answer:
The period of a satellite, the time it takes for a complete revolution, depends on the
satellite's
A) mass.
B) weight.
C) radial distance.
D) all the above
E) none of the above
Answer:
Which of the following would have the smallest number of induced dipole-induced
dipole interactions?
A) C6H14
B) C8H18
C) C10H22
D) C12H26
E) not enough information given
Answer:
A karate chop is more effective if one's hand
A) follows through upon impact.
B) bounces upon impact.
C) extends the time upon impact.
Answer:
About how many elements do you have access to as a consumer of market goods?
A) none
B) one
C) ten
D) one hundred
Answer:
Which of the following bonds would be the most polar?
A) C-F
B) C-Cl
C) C-Br
D) C-I
E) All are equally polar.
Answer:
A bow is drawn so that it has 40 J of potential energy. When the arrow is fired its
kinetic energy is ideally
A) less than 40 J.
B) more than 40 J.
C) 40 J.
Answer:
The source of electrons in an ordinary electric circuit is
A) a dry cell, wet cell, or battery.
B) usually a wall socket.
C) a generator at the power station.
D) the electric conductor itself.
E) none of the above
Answer:
