The work you do when pushing a shopping cart twice as far while applying the same
force is
A) half as much.
B) twice as much.
C) four times as much.
D) the same amount.
A floating leaf oscillates up and down two complete cycles in one second as a 10-meter
long water wave passes by. What is the wave’s speed?
A) 2 m/s
B) 10 m/s
C) 20 m/s
D) 40 m/s
E) more than 40 m/s
What was discovered in atomic spectra by physics pioneers Balmer, Rydberg, and Ritz?
A) unexplained randomness
B) mathematical order
C) all atoms are about the same size
D) electrons occupy well-defined shells about the atomic nucleus
E) electrons behave as standing waves
The force due to gravity that acts on a block of ice that slides down an icy ramp
A) remains equal to mg at all angles.
B) decreases as the slope of the ramp increases.
C) becomes greatest when the ramp is vertical.
If your mass, the mass of Earth, and the mass of everything in the solar system were
twice as much as it is now, yet everything stayed the same size, your weight on Earth
would
A) be the same.
B) double.
C) quadruple.
D) be eight times as much as now.
E) none of the above
An apple weighs 1 N. When the apple is held at rest above your head, the net force on
the apple is
A) 0 N.
B) 0.1 N.
C) 1 N.
D) 9.8 N.
E) none of the above
The fundamental frequency of a violin string is 440 hertz. The frequency of its second
harmonic is
A) 220 hertz.
B) 440 hertz.
C) 880 hertz.
D) none of the above
If a pizza absorbs more energy than it emits, its temperature
A) decreases.
B) is unaffected.
C) increases.
D) none of the above
Figure G-1
Pretend an object is set sliding on a huge frictionless plane in contact with the surface
of Earth as shown. Once the object is set in motion it will
1) theoretically slide to the right forever
2) slide back and forth
3) slow down and stop
because
4) of its inertia.
5) gravitational force decreases with increasing distance.
6) the object is sliding “uphill” and then “downhill” relative to the round Earth.
The crescent shapes of spots of light cast through openings in trees occurs with a
A) partial eclipse of the Sun.
B) total eclipse of the Sun.
C) lunar eclipse, partial or total.
D) partial lunar eclipse.
For viewing tiny objects in a microscope, diffraction is
A) helpful.
B) a hindrance.
C) not a factor.
Between a pair of equal and opposite charges, field lines are
A) directed from positive to negative.
B) more concentrated closer to the charges.
C) vectors, with patterns that stem from the inverse-square law.
D) all of the above
E) none of the above
A blueberry pie will be a net absorber of energy when its temperature is
A) higher than its surroundings.
B) lower than its surroundings.
C) none of these
Which potatoes when peeled produce the most peelings?
A) 10 kg of large potatoes
B) 10 kg of small potatoes
C) both the same
Which has the greater mass?
A) a king-size pillow
B) an automobile battery
C) both the same
Which task requires more work?
A) lifting the 50-kg sack 2 meters
B) lifting the 25-kg sack 4 meters
C) both require the same
D) need more information
Taking the work function into account, electrons ejected from a photosensitive material
have
A) less kinetic energy than the absorbed photon’s energy.
B) more kinetic energy than the absorbed photon’s energy.
C) kinetic energy equal to the absorbed photon’s energy.
A quark is a fundamental particle
A) that makes up a nucleon.
B) much smaller than a nucleon.
C) not composed of smaller parts.
D) all of the above
E) none of the above
A dome-shaped house is more heat efficient than a rectangular house because a dome
has
A) no corners to radiate.
B) less interior space.
C) less area compared to its volume.
D) all of the above
E) none of the above
A shock wave is
A) the opposite of a bow wave.
B) usually composed of a pair of closely spaced cones.
C) weak for aircraft that fly at less than the speed of sound.
D) all of the above
E) none of the above
An object falls freely from rest on a planet where the acceleration due to gravity is 20
m/s2. After 5 seconds, the object will have a speed of
A) 5 m/s.
B) 10 m/s.
C) 20 m/s.
D) 50 m/s.
E) 100 m/s.
When the hydrogen isotope tritium-3 emits a beta particle, it becomes an isotope of
A) hydrogen.
B) helium.
C) lithium.
D) carbon.
E) none of the above
Newton’s rings will be closer together if illuminated with
A) red light.
B) blue light.
C) white light.
D) none of the above
A pair of helium nuclei fused together produces
A) helium isotope.
B) lithium.
C) beryllium.
D) carbon.
E) iron.
A wiggle in time is a
A) vibration.
B) wave.
C) both of these
D) neither of these
An airplane that flies at 100 km/h in a 100-km/h crosswind has a ground speed of
A) 0 km/h.
B) 100 km/h.
C) 141 km/h.
D) 200 km/h.
How far must one travel to escape Earth’s gravitational field?
A) to a region above Earth’s atmosphere
B) to a region well beyond the Moon
C) to a region beyond the solar system
D) forget it; you can’t travel far enough.
A red car has a head-on collision with an approaching blue car with the same magnitude
of momentum. A green car driving with the same momentum as the other cars collides
with an enormously massive wall. Which of the three cars will experience the greatest
impulse?
A) red car
B) blue car
C) green car
D) all the same
Compared to the huge force that attracts an iron tack to a strong magnet, the force that
the tack exerts on the magnet is
A) relatively small.
B) equally huge.
C) inversely proportional to their masses.
Surrounding every moving electron is
A) a magnetic field.
B) an electric field.
C) both of these
D) neither of these