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A ring, a disk, and a solid sphere begin rolling down a hill together. Which reaches the
bottom first?
A) ring
B) disk
C) sphere
D) all reach the bottom at the same time
E) need more information
The specific heat capacity is highest for substances that absorb or release large
quantities of heat for correspondingly
A) small temperature changes.
B) large temperature changes.
C) small or large changes in temperature.
D) none of the above
Connect a pair of lamps in series and current is drawn from the battery. Connect the
same lamps in parallel and the current drawn is
A) less.
B) the same.
C) more.
D) sometimes more, sometimes less.
Phil leans over the edge of a cliff and throws a rock upward at 5 m/s. How far below the
level from which it was thrown is the rock 2 seconds later?
A) 5 m
B) 10 m
C) 15 m
D) 20 m
Whereas loudness is a physiological sensation, sound intensity is
A) the same.
B) measurable with acoustical instruments.
C) both of these
D) neither of these
A pair of action-reaction forces always
A) act on the same object.
B) occur simultaneously.
C) comprise a pair of interactions.
D) all of the above
E) none of the above
A pair of wires support a heavy painting. Tension in the wires is greater when they are
A) vertical.
B) not vertical.
C) the same regardless of the wire orientation.
D) none of the above
When Nellie Newton hangs at rest in the middle of a clothesline, tensions will be the
same in each side of the rope when
A) the lengths of each rope are the same.
B) the angles for both sides of the rope are equal.
C) she is in equilibrium.
The fundamental force underlying all chemical reactions is
A) gravitational.
B) nuclear.
C) centripetal.
D) electrical.
E) none of the above
To think of electric potential difference we are thinking about
A) current.
B) voltage.
C) resistance.
When a solid is changed to a liquid, the solid
A) releases energy.
B) absorbs energy.
C) both of these
D) neither of these
A tree stump is pulled northward by a 10-N force at the same time a 25-N force pulls it
southward. The resultant force has a magnitude of
A) 0 N.
B) 15 N.
C) 25 N.
D) 150 N.
If a 10oC piece of iron is heated until it has twice as much internal energy, its
temperature will be
A) 20oC.
B) 273oC.
C) 293oC.
D) 566oC.
E) none of the above
A theory in the field of science is
A) an educated guess.
B) less than a fact.
C) a synthesis of a large body of well-tested knowledge.
D) unchangeable.
As the polar icecaps melt, the resulting water spreads over the entire Earth. This new
mass distribution tends to make the length of a day
A) longer.
B) shorter.
C) none of these
As a balloon rises higher and higher into the atmosphere its
A) volume decreases.
B) density increases.
C) weight increases.
D) mass decreases.
E) none of the above
How many octaves exist between 20 hertz and 2560 hertz?
A) 5
B) 6
C) 7
D) 8
E) 9
If an object moves with constant acceleration, its velocity must
A) be constant also.
B) change by the same amount each second.
C) change by varying amounts depending on its speed.
D) always decrease.
When you observe the applications of pistons in lifting operations you're seeing
A) Pascal's principle in action.
B) how energy can be increased.
C) both of these
D) neither of these
The frequency of induced voltage in a wire coil depends on
A) the frequency of current producing it.
B) how frequently a magnet dips in and out of the coil.
C) the number of loops in the coil.
When a light ray passes at a non-90o angle from water into air, it
A) bends toward the normal.
B) bends away from the normal.
C) travels much slower.
The Sun's elliptical shape at sunset can be adequately explained by
A) Fermat's principle.
B) the law of refraction.
C) both of these
D) neither of these
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.
It there were no gravity a stone thrown upward at 45 degrees would follow a
straight-line path. But because of gravity, at the end of 1 second, the stone is actually
A) 5 m below the straight line.
B) 10 m below the straight line.
C) 15 m below the straight line.
The most abundant element in the universe is
A) hydrogen.
B) helium.
C) lead.
D) uranium.
The drift speed of electrons that compose current in a flashlight is about
A) the speed of sound waves in metal.
B) the speed of light.
C) 1000 cm/s.
D) less than 1 cm/s.
E) any of the above under different conditions.
The image of the "infinitely-far-away" Sun produced by a converging lens appears
A) between the lens and the focal point.
B) at the focal point.
C) beyond the focal point.
Inertia is defined as a
A) force.
B) property of matter.
C) change in motion.
D) none of the above
How many atoms are in this carbohydrate molecule, C6H12O6?
A) 3.
B) 14.
C) 18.
D) 24.
E) none of the above
Which does NOT belong to the same family?
A) infrasonic waves
B) ultrasonic waves
C) radio waves
D) shock waves
E) longitudinal waves
In the periphery of our vision, we are
A) more sensitive to low frequencies than high ones.
B) insensitive to color and movement.
C) sensitive to movement, but cannot see color.
D) sensitive to both movement and color.
E) none of the above
When Rutherford directed a stream of alpha particles at a gold foil, most particles
A) bounced back.
B) continued through.
C) stopped.
D) spiraled.
Magnetic field strength about a magnet is strongest where magnetic field lines are
A) closer together.
B) straightest.
C) most curved.
D) more spread.
A positive charge and a negative charge held a certain distance apart are released. As
they move, the force on each particle
A) increases.
B) decreases.
C) stays the same.
