As a solid is gradually heated, it first glows
A) red.
B) yellow.
C) white.
D) blue.
The first evidence confirming the crystal structure of matter was
A) the citing of experiments by Nobel Prize-winning scientists.
B) testimonials by crystal-loving investigators.
C) X-ray diffraction patterns.
The force that causes Earth to orbit the Sun is due to gravity, while the force needed to
keep Earth moving as it circles the Sun is
A) inertia.
B) due to gravity.
C) due to both inertia and gravity.
D) no force at all.
Which of these lamps has no mercury content?
A) fluorescent lamp
B) CFL
C) incandescent lamp
D) none of the above
Which of the following has the largest momentum relative to Earth’s surface?
A) a tightrope walker crossing Niagara Falls
B) a pickup truck speeding along a highway
C) a Mack truck parked in a parking lot
D) the Science building on campus
E) a mouse running across your room
A generator armature is more difficult to rotate when supplying electric current due to
A) an induced magnetic field in the windings that resists change.
B) increased resistance.
C) energy leaking as heat.
D) none of the above
Which has zero acceleration? An object
A) at rest.
B) moving at constant velocity.
C) in mechanical equilibrium.
D) all of the above
E) none of the above
The dark lines in the Sun’s spectrum are due to light that is
A) absorbed by the Sun’s atmosphere.
B) emitted by the Sun.
C) reflected by the Sun.
D) none of the above
Induced electric and magnetic fields result in
A) electromagnetic waves.
B) stronger electric or magnetic fields.
C) higher voltages produced by Faraday induction.
D) all of the above
E) none of the above
If Earth’s radius somehow increased with no change in mass, your weight would
A) increase also.
B) decrease.
C) stay the same.
The most basic of the sciences of physics, chemistry, and biology is
A) physics.
B) chemistry.
C) biology.
D) none of the above
Which of these three produces the greatest tidal effect on you right now?
A) the Moon
B) the Sun
C) the Earth
Whether a truck comes to a stop by crashing into a haystack or a brick wall, the
stopping force is
A) greater with the haystack.
B) greater with the brick wall.
C) both the same
A golf ball moving forward with 1 unit of momentum strikes and bounces backward off
a heavy bowling ball that is initially at rest and free to move. The bowling ball is set in
motion with a momentum of
A) less than 1 unit.
B) more than 1 unit.
C) 1 unit.
D) not enough information
Compared with the amount of current in the filament of a lamp, the amount of current
in the connecting wires is
A) definitely less.
B) often less.
C) actually more.
D) the same.
E) incredibly, all of the above
If you view a rainbow out your window while riding in a train, you’ll see that
A) the rainbow can only be seen while you’re moving slowly or at rest.
B) the rainbow moves along with you.
C) you soon pass by it, leaving it where you first saw it.
A given amount of heat energy can be completely converted to mechanical energy in
A) a steam engine.
B) an atomic reactor.
C) a simple machine.
D) all of the above
E) none of the above
If Earth’s atmosphere were appreciably thicker, snow would appear
A) still white.
B) yellow.
C) blue.
D) ultraviolet.
A red apple will appear black when illuminated with
A) blue light.
B) cyan light.
C) yellow light.
D) magenta light.
E) none of the above
A moving van with a stone lightly glued to the midpoint of its ceiling smoothly moves
at constant velocity. When the glue gives way, the stone falls and hits the floor
A) ahead of the midpoint of the ceiling.
B) exactly below the midpoint of the ceiling.
C) behind the midpoint of the ceiling.
D) none of the above
Look at full-color photos in your textbook with a magnifying glass and you’ll see inks
of
A) red, green, and blue.
B) red, green, blue, and black.
C) magenta, cyan, and yellow.
D) magenta, cyan, yellow, and black.
E) none of these
If you float a piece of wood in a container half-full of water that rests on a weighing
scale, the weight reading on the scale will
A) decrease.
B) remain unchanged.
C) increase.
The spectrum of a mercury vapor lamp under very high pressure appears as that from
A) an incandescent source.
B) a laser.
C) an ultraviolet source.
D) a gas other than mercury.
E) a monochromatic source.
Pumice is a volcanic rock that floats, which means its density is
A) less than the density of water.
B) equal to the density of water.
C) more than the density of water.
D) need more information.
When you stand with only one of your feet on a weighing scale, the scale reading is
A) half.
B) the same as with both feet.
C) doubled.
D) none of the above
Nuclear stability is related to the balance between
A) attracting and repelling forces in the nucleus.
B) positive and negative ionic forces.
C) both of these
D) neither of these
Two charged particles held a certain distance apart are released. As they move, the force
on each particle increases. Therefore, their charges have
A) the same sign.
B) opposite signs.
C) the same mass.
D) the same size.
E) need more information
Which of the following statements is true?
A) an atom is the smallest particle known to exist
B) there are only about 100 different kinds of atoms that combine to form all substances
C) there are thousands of different kinds of atoms that account for a wide variety of
substances
D) a large atom can be photographed with the aid of an ordinary microscope
E) none of the above
Acceleration is greater for a satellite when it is at the
A) apogee (farthest point).
B) perigee (closest point).
C) zenith.
D) same acceleration at all of the above places.
Brownian motion is caused by
A) thermal agitation.
B) perpetual motion.
C) particles larger than atoms bumping into them.
D) interactions between atoms and molecules.
E) almost invisible bugs.