If a fictional shrinking man shrinks proportionately to 1/10 his original height, his
weight will be multiplied by
A) 0.1.
B) 0.01.
C) 0.001.
D) 0.0001.
E) none of the above
A pair of crossed Polaroids will transmit light
A) of sufficiently long wavelengths.
B) that itself is polarized.
C) if a third Polaroid at about 45 degrees is inserted between the two.
When we enlarge a photograph of an iron ring, the image of the hole becomes
A) smaller.
B) larger.
C) neither smaller nor larger.
If the specific heat of water were lower than it is, ponds in the cold of winter would be
A) more likely to freeze.
B) less likely to freeze.
C) neither more nor less likely to freeze.
A hydraulic press has its input piston depressed 20 centimeters while the output piston
is raised 1 centimeter. A 1-newton input can lift a load of
A) 1 N.
B) 10 N.
C) 15 N.
D) 20 N.
E) none of the above
Neutrons that will initiate the fission of U-235 require speeds that are
A) less than average.
B) about average.
C) more than average.
D) all of the above
E) none of the above
The amount of energy ultimately converted to heat by an incandescent light bulb is
about
A) 10%.
B) 40%.
C) 80%.
D) 100%.
The pitch of a musical sound is most related to
A) wavelength.
B) frequency.
C) speed.
D) amplitude.
E) all of the above
The chance that at least one of the atoms exhaled in your previous breath will be
inhaled in your next breath is
A) very low.
B) very high.
C) zero.
A simple method of measuring the distance between the Earth and the Moon is to place
in your line of sight to the Moon a
A) magnifying glass.
B) coin.
C) telescope.
D) meterstick.
In which is the temperature greater?
A) boiling-hot tea in a cup
B) boiling-hot tea in a fire-engine pail
C) both the same
The direction of an electric field is the direction of the force exerted on
A) a neutral test charge.
B) an electron.
C) an atom.
D) a proton.
E) a molecule.
In gravitational red shift, the quantity that undergoes a red shift is
A) spacetime curvature.
B) wave direction.
C) field intensity.
D) wave frequency.
E) none of the above
There is a legend of a Dutch boy who bravely held back the Atlantic Ocean by plugging
a leak near the top of a dike with his finger until help arrived. Which is the more likely
scenario?
A) the huge size of the Atlantic Ocean makes this impossible
B) although the force on his finger would have been huge, the pressure would have
been small enough for this to occur
C) the force on his finger would have been less than 1 N
D) both force and pressure on his finger would have been great, but not too great for a
public-spirited Dutch lad
E) none of the above
A banana will appear black when illuminated with
A) black light.
B) blue light.
C) red light.
D) green light.
A pinhole cameras has no lens. The tiny pinhole opening insures that rays of light from
different parts of an object
A) overlap.
B) don’t overlap.
C) bend to a focus.
Two charges separated by one meter exert 1-N forces on each other. If the charges are
pulled 3 meters apart, the force on each charge will be
A) 0.11 N.
B) 0.33 N.
C) 0 N.
D) 3 N.
E) 9 N.
Two people, one twice as massive as the other, attempt a tug-of-war with 12 meters of
rope on frictionless ice. After a brief time, they meet. The heavier person slides a
distance of
A) 3 m.
B) 4 m.
C) 6 m.
D) 0 m.
The equilibrium rule applies to
A) vector quantities.
B) quantities that are equal in magnitude.
C) scalar quantities.
D) any kind of quantities.
A bird sitting on the limb of a tree is moving about 30 km/s with respect to the Sun. If
the bird takes 1 second to drop down to a worm below, the worm would be 30 km
downrange from the bird when it reached the ground. This faulty reasoning is best
countered with Newton’s
A) law of inertia.
B) law of gravity.
C) laws of motion.
D) none of the above
While an airplane flies at 40 m/s at an altitude of 500 meters, the pilot drops a heavy
package that falls to the ground. Neglecting air drag, about where does the package land
relative to the plane flying above?
A) directly beneath the plane
B) 400 m behind the plane
C) 500 m behind the plane
D) more than 500 m behind the plane
E) none of the above
When you quickly jerk a cart forward that has a ball resting in the middle, the
A) front of the cart hits the ball.
B) back of the cart hits the ball.
C) neither, for the ball rides along in the middle as the cart moves forward.
D) All of the above depending on how quickly the cart is pulled.
Voltage can be induced in a wire by
A) moving the wire near a magnet.
B) moving a magnet near the wire.
C) changing the current in a nearby wire.
D) all of the above
E) none of the above
When weight is applied to the top of a stone arch, the stone blocks in the arch undergo
A) tension.
B) compression.
C) expansion.
D) none of the above
A 10-kg brick and a 1-kg apple are dropped in a vacuum. The force of gravity on the
brick is
A) the same as the force on the apple.
B) 10 times more than the force on the apple.
C) one-tenth as much as on the apple.
D) zero.
Morning dew on the grass is a result of
A) evaporation of water.
B) the open-structured form of water crystals.
C) air pressure on water vapor.
D) slow-moving water molecules sticking to one another.
You cannot exert a force on a wall
A) if the wall resists.
B) unless you put your mind to it.
C) unless the wall simultaneously exerts the same amount of force on you.
The power consumed by a device drawing 0.8 A when connected to 120 V is
A) 12 W.
B) 15 W.
C) 60 W.
D) 96 W.
E) 120 W.
A helium-neon laser beam in a vacuum is
A) red.
B) orange.
C) white.
D) invisible.
E) none of the above
When you touch a nail stuck in ice, energy flows from
A) the ice to your hand.
B) your hand to the ice.
C) both of these
D) neither of these