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The amount of water displaced by a liter-sized block of ordinary wood floating in water
is
A) less than 1 liter.
B) 1 liter.
C) more than 1 liter.
D) depends on the water density
E) none of the above
If the orbit of Mercury were perfectly circular, its rate of precession would be
A) larger.
B) smaller.
C) the same.
D) zero.
An object with twice as much mass as another object has twice as much
A) inertia.
B) speed.
C) acceleration due to gravity.
D) all of the above
If you were caught in freezing weather with only a candle for heat, you would be
warmer in
A) an igloo.
B) a tent.
C) a wooden house.
D) a car.
In free space, electromagnetic waves travel at a
A) variety of speeds.
B) single speed.
C) speed depending on frequency.
Information-carrying nerves are connected to the retina at the
A) fovea.
B) blind spot.
C) cornea.
D) iris.
E) periphery.
Colors seen in the flames of a burning log originate with the variety of
A) multi-layered incandescent surfaces.
B) electron transitions in various atoms.
C) temperatures.
D) absorbing gases between the log and the viewer.
When a twirling ice skater brings her arms inward, her rotational speed
A) decreases.
B) remains the same.
C) increases.
Which force field can accelerate an electron?
A) electric field
B) magnetic field
C) both of these
D) neither of these
According to the principle of continuity, the velocity of a fluid multiplied by the cross
section through which it flows at one point will equal the product of
A) velocity and cross section at another point.
B) velocity and pressure at another point.
C) a constraint factor.
D) none of the above
Which pulls on the oceans of Earth with a greater force?
A) Moon
B) Sun
C) both pull the same.
In general, a common magnet has
A) one pole.
B) at least two poles.
C) only two poles.
The frequency of a note one octave higher in pitch than a 440-Hz note is
A) 1760 Hz.
B) 880 Hz.
C) 440 Hz.
D) 220 Hz.
E) 110 Hz.
When a lump of uranium is broken into smaller pieces, the total surface area
A) decreases.
B) remains the same.
C) increases.
When a colored light in air shines on water and is refracted, its frequency
A) decreases.
B) remains unchanged.
C) increases.
The measured ratio of circumference to diameter on a disk is π when the disk is
A) moving at relativistic speeds.
B) rapidly rotating.
C) at rest.
D) all of the above
E) none of the above
The number of nodes in a standing wave of one wavelength, not including the
endpoints, is
A) 0.
B) 1.
C) 2.
D) 3.
E) 4.
The force of friction on a sliding object is 10 N. The applied force needed to maintain a
constant velocity is
A) more than 10 N.
B) less than 10 N.
C) 10 N.
If the Moon were four times as massive but twice as far from Earth, high tides on Earth
would be
A) higher.
B) lower.
C) no different.
An image of the American flag cast by a simple lens finds red and blue colors at slightly
different distances from the lens. The color closest to the lens is
A) red.
B) blue.
C) both at the same place
The part of the electromagnetic spectrum most absorbed by water is
A) infrared.
B) red.
C) cyan.
D) all about equally.
The source of every sound is something that is
A) vibrating.
B) moving.
C) accelerating.
D) undergoing simple harmonic motion.
E) a net emitter of energy.
A primary rainbow is brighter than a secondary rainbow because
A) sunlight reaching it is more intense.
B) there is one less reflection inside the water drops.
C) larger drops produce primary rainbows.
D) the secondary bow is a dim reflection of the primary rainbow.
E) none of the above
An Earth satellite in an elliptical orbit travels fastest when it is
A) nearest Earth.
B) farthest from Earth.
C) everywhere along its orbit.
The planet Earth loses heat primarily by
A) conduction.
B) convection.
C) radiation.
D) all of the above
The statement, "There are regions beneath Earth's crust that will always be beyond the
reach of scientific investigation" is
A) a fact.
B) speculation.
C) a hypothesis.
D) a scientific statement.
E) a theory.
Between the consumer and the power plant, most importantly, are
A) huge capacitors.
B) generators.
C) step-down transformers.
D) all of the above
E) none of the above
Although electrons in metal move in haphazard directions at many times the speed of
sound, the drift speed of electrons that compose electric current is
A) a fraction of a centimeter per second.
B) many centimeters per second.
C) the speed of a sound wave.
D) the speed of light.
E) none of the above
From Earth, one satellite appears to overtake another. The faster satellite is
A) higher.
B) lower.
C) smaller.
D) can't say
Faraday's law was extended by Maxwell toward
A) changes in electric fields.
B) changes in magnetic fields.
C) both of these
D) neither of these
