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Compared with falling on a wooden floor, a wine glass may not break when it falls on a
carpeted floor because of
A) lesser impulse in stopping.
B) longer time to stop.
C) both of these
D) none of the above
Answer:
Which expands more when the temperature is lowered? Equal volumes of
A) iron.
B) wood.
C) helium.
D) water at 4C.
E) none expand when the temperature is lowered
Answer:
Common erosional shoreline features include sea stacks,
A) beaches, and barrier islands.
B) wave-cut platforms, sea caves, and sea arches.
C) sea caves, sea arches, and atolls.
D) wave-cut platforms, sea caves, and sea spits.
Answer:
The unit of measurement for electric power is
A) joules per second.
B) watts.
C) both are equivalent
D) none of the above
Answer:
A mosquito flying at 3 m/s encounters a 3-m/s breeze blowing in the same direction,
which gives it a resulting speed over the ground of
A) 0 m/s.
B) 3 m/s.
C) 4 m/s.
D) 6 m/s.
Answer:
The direction of an electric field is defined as the direction of force on
A) a positively-charged particle.
B) a negatively-charged particle.
C) any charged particle.
Answer:
Reverse faults are the result of
A) tension.
B) compression.
C) divergence.
D) heat.
Answer:
Glucose, , is a simple sugar that the body metabolizes into two molecules of
pyruvic acid, . Is the glucose oxidized or reduced as it transforms into pyruvic
acid?
A) The glucose is oxidized.
B) The glucose is reduced.
C) Parts of the glucose molecule are oxidized while others are reduced.
D) Glucose is neither oxidized or reduced as it transforms into pyruvic acid.
Answer:
The Moon does not crash into Earth because
A) Earth's gravitational field is weak at the Moon's distance.
B) the gravitational pull of other planets keeps the Moon up.
C) the Moon has a sufficient tangential speed.
D) the Moon has less mass than Earth.
E) none of the above
Answer:
Most of the stars in colliding galaxies
A) do not make contact with one another.
B) coalesce into larger stars.
C) exchange amounts of material in proportion to their masses.
D) end up as binaries.
E) undergo accelerated collapse.
Answer:
A star's luminosity tells us
A) how much energy a star produces.
B) its surface temperature.
C) its rotational speed.
D) both how much energy it produces and its surface temperature.
Answer:
The image below shows a beam of radiation passing between two electrically charged
plates.
Which of the following provides the minimum amount of protection you need to block
the following form of radiation?
alpha
A) lead suit
B) suntan lotion
C) thick leather
D) T-shirt
E) none of the above
Answer:
The dumped sediment from a stream flowing into standing water is called a
A) delta.
B) floodplain.
C) drainage basin.
D) divide.
Answer:
Newton discovered
A) gravity.
B) that gravity is universal.
C) neither of these
Answer:
The changing shapes of constellations in the night 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:
Volcanic activity is associated with
A) divergent, convergent, and transform boundaries.
B) convergent and transform boundaries.
C) divergent and convergent boundaries.
D) divergent, convergent, and plate tectonic boundaries.
Answer:
Jet streams not only play an essential role in the global transfer of thermal energy but
also aid
A) eastbound airplanes.
B) westbound airplanes.
C) both eastbound and westbound airplanes.
D) landings and takeoffs.
Answer:
Which one of these elements is normally the remnant of a supernova?
A) hydrogen
B) helium
C) silver
D) none of these
Answer:
A commercial jet has a mass of 5000 kg. During takeoff the thrust of its engine is
10,000 N, producing an acceleration of
A) 0.5 m/s2.
B) 1 m/s2.
C) 2 m/s2.
D) 4 m/s2.
E) none of the above
Answer:
Magnet A has twice the magnetic field strength of magnet B and pulls on magnet B
with a force of 100 N. The amount of force that magnet A exerts on magnet B is
A) about 50 N.
B) exactly 100 N.
C) more than 100 N.
D) not enough information
Answer:
When sign painters Burl and Paul stand on opposite ends of a scaffold, the tensions in
each of the two supporting ropes
A) are equal.
B) depend on the relative weights of Burl and Paul.
C) combine to equal zero.
D) none of the above
Answer:
If you push for an hour against a stationary wall, you do no work
A) on the wall.
B) at all.
C) both of these
D) none of the above
Answer:
Which of the following elements will most likely be shiny and malleable?
A) rhodium (Rh)
B) hydrogen (H)
C) helenium (Se)
D) iodine (I)
E) silicon (Si)
Answer:
If you wish to spear a red fish with a red laser beam, you should compensate for
refraction and aim your laser
A) directly at the sighted fish.
B) above the sighted fish.
C) below the sighted fish.
Answer:
Would you expect to find more dissolved oxygen in polar or tropical ocean waters?
Why?
A) There would be more dissolved oxygen in the tropical oceans because intense
tropical storms mix up the atmospheric oxygen into the ocean water.
B) There would be more dissolved oxygen in the polar oceans because the colder
oxygen would "sink" and dissolve into the water.
C) There would be more dissolved oxygen in the tropical oceans because the heated
oxygen molecules in the air would collide with and mix into the water.
D) There would be more dissolved oxygen in the polar oceans because the solubility of
oxygen in water decreases with increasing temperature.
Answer:
High clouds have the prefix
A) Nimbo-.
B) Alto-.
C) Strato-.
D) Cirro-.
Answer:
Deposition of sediment with each new layer younger than the layer below illustrates the
principle of
A) original horizontality.
B) superposition.
C) nonconformity.
D) horizontality and nonconformity.
Answer:
Water can change phase to become ice by
A) extraction of energy.
B) lowering the surrounding air pressure.
C) both of these
D) neither of these
Answer:
Air moves toward a low-pressure region where it
A) sinks.
B) rises.
C) warms.
D) stops.
Answer:
What is produced by the process of electrolysis?
A) energy
B) hydrogen and oxygen
C) pure drinking water
D) photovoltaic power
Answer:
