You are a passenger on a spaceship. As the speed of the spaceship increases, you would
observe
A) your watch slowing down.
B) your watch speeding up.
C) your watch losing time.
D) your watch gaining time.
E) nothing unusual about your watch.
If the net work done on an object is zero, then the object’s kinetic energy
A) decreases.
B) remains the same.
C) increases.
D) is zero.
E) cannot be determined without knowing the object’s mass.
Fig. 2-6 shows the velocity-versus-time graph for a basketball player traveling up and
down the court in a straight-line path. Find the total distance run by the player in the 10
s shown in the graph.
A) 20 m
B) 18 m
C) 16 m
D) 14 m
E) 12 m
The energy difference between adjacent orbit radii in a hydrogen atom
A) decreases with increasing values of n.
B) increases with increasing values of n.
C) remains constant for all values of n.
D) varies randomly with increasing values of n.
An object is moving with constant velocity in a straight line. Which of the following
statements is true?
A) A constant force is being applied in the direction of motion.
B) A constant force is being applied in the direction opposite of motion.
C) There are no forces acting on the object.
D) The net force on the object is zero.
E) There is no frictional force acting on the object.
Both the pressure and volume of a given sample of an ideal gas double. This means that
its temperature in Kelvins must
A) double.
B) quadruple.
C) reduce to one-half its original value.
D) reduce to one-fourth its original value.
E) remain unchanged.
A beam of light (f = 5 1014 Hz) enters a piece of glass (n = 1.5). What is the frequency
of the light while it is in the glass?
A) 5 x 1014 Hz
B) 7.5 x 1014 Hz
C) 3.33 x 1014 Hz
D) 5 x 1013 Hz
E) 7.5 x 1013 Hz
FIGURE 16-5
What is the equivalent capacitance of the capacitor network shown in Fig. 16-5? (All
the capacitors have a capacitance C = 5 μF. The voltage of the battery is V = 6V.)
A) 20 μF
B) 3 μF
C) 10 μF
D) 5 μF
E) 1 μF
The condition 2d sin(θ) = nλ for X-ray diffraction maxima is attributed to
A) Young.
B) Rayleigh.
C) Bragg.
D) Brewster.
E) Land.
The distance between the two planets is 1.6 x 106 m. How much time would the light
signal take to go from one planet to the other?
A) 1.9 x 10-2 s
B) 0.45 x 10-2 s
C) 0.53 x 10-2 s
D) 1.3 x 10-2 s
E) None of the other answers is correct.
What is the missing term in this fission reaction:
U + n → Nb + ? + 4 n
A) Ag
B) Sb
C) Sb
D) Ag
E) Sb
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net
force acting on the body?
A) 2.0 N
B) 4.0 N
C) 8.0 N
D) 16 N
E) 32 N
A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as
it approaches a stationary pedestrian. What frequency does the pedestrian hear? The
speed of sound in air is 343 m/s.
A) 200 Hz
B) 375 Hz
C) 400 Hz
D) 425 Hz
E) 450 Hz
How many of the infinite number of Balmer spectrum lines are in the visible spectrum
range?
A) none
B) 2
C) 4
D) 6
E) infinite
A spherically symmetric planet has four times the Earth’s mass and twice its radius. If a
jar of peanut butter weighs 12. N on the surface of the Earth, how much would it weigh
on the surface of this planet?
A) 18 N
B) 12 N
C) 30 N
D) 6 N
E) 24 N
FIGURE 22-4
A light ray emerges from the bottom of a 45 glass prism into air, as shown in Fig. 22-4.
From which direction was the ray incident on the prism?
A) C
B) A
C) D
D) B
Doubling the number of loops of wire in a coil produces what kind of change on the
induced emf, assuming all other factors remain constant?
A) The induced emf is 4 times as much.
B) There is no change in the induced emf.
C) The induced emf is twice as much.
D) The induced emf is times as much.
E) The induced emf is 3 times as much.
A 120. mH inductor is in series with a 20. Ω resistor and a variable capacitor (0.110 μF
to 0.400 μF).
(a) What is the range of resonant frequencies possible?
(b) Connected to a 24. volt rms source, what current flows at resonance?
The separation between adjacent maxima in a double-slit interference pattern using
monochromatic light is
A) greatest for red light.
B) greatest for green light.
C) the same for all colors of light.
D) greatest for blue light.
Christie bought a 9 x 50 pair of binoculars for stellar observing. The 9 is the
A) f/number.
B) aperture in cm.
C) angular magnification.
D) aperture in mm.
E) f/number-1
Rays that pass through a lens very close to the lens axis are more sharply focused than
those that are very far from the axis. The inability of a lens to sharply focus off-axis
rays is called spherical aberration. This effect helps us to understand why
A) we become more farsighted as we grow older.
B) we become more nearsighted as we grow older.
C) we can see only in black and white in dim light.
D) it is easier to read in bright light than in dim light.
E) a moving object is more readily detected than a stationary one.
During a reaction, 1.7 10-4 J of energy is released. What change of mass would cause
this?
A) 5.1 x 10-4 kg
B) 4.3 x 10-11 kg
C) 1.5 x 10-13 kg
D) 4.8 x 10-18 kg
E) 1.9 x 10-21 kg
The square of the wave function represents the
A) velocity of the particle.
B) probability of finding the particle.
C) position of the particle as a function of time.
D) probability density for finding particle.
The lowest tone to resonate in a closed pipe of length L is 200 Hz. Which of the
following frequencies will not resonate in that pipe?
A) 1000 Hz
B) 400 Hz
C) 200 Hz
D) 600 Hz
E) 1400 Hz
An object 4.0 cm in height is placed 8.0 cm in front of a concave mirror with a focal
length of 10.0 cm. What is the position of its image in relation to the mirror and what
are its characteristics?
A) 40.0 cm on the other side of mirror, real, 6.0 times bigger
B) 10.0 cm on the other side of mirror, virtual, 10.0 times bigger
C) 18.0 cm on the same side of mirror, virtual, 2.25 times bigger
D) 10.0 cm on the same side of mirror, real, 6.0 times bigger
E) 40.0 cm on the other side of mirror, virtual, 5.0 times bigger
A piece of iron sinks to the bottom of a lake where the pressure is 21 atm. Which
statement best describes what happens to the density of that piece of iron?
A) There has been no change in the density of the iron.
B) Its density decreases slightly.
C) Its density increases slightly.
D) Its density becomes 21 times greater.
A motorcycle stunt rider wants to jump a 179. m wide canyon. He arranges a ramp on
one side so he will be launched pointed 30. above the horizontal. What minimum speed
will be needed to just reach the other side?
A) 35. m/s
B) 30. m/s
C) 40. m/s
D) 25. m/s
E) 45. m/s
A light beam having a wavelength of 470. nm in air is directed into glycerine (n = 1.47).
(a) What is the frequency of the light in the glycerine?
(b) What is its wavelength in the glycerine?
(c) If the incident angle is 75.0, what is the refracted angle?
Consider the fission reaction:
U + n → 2 fission products + 2 n’s
(a) Estimate the energy released in the reaction.
(b) If 3 neutrons had been released instead of 2, what energy would have been released?
A resistor and a capacitor are connected in series to an ideal battery of constant terminal
voltage. At the moment contact is made with the battery, the voltage across the resistor
is
A) greater than the battery’s terminal voltage.
B) equal to the battery’s terminal voltage.
C) less than the battery’s terminal voltage, but greater than zero.
D) zero.
FIGURE 19-4
Fig. 19-4 shows two wires, in cross section, carrying 7.0 Amperes out of the page.
Determine the total magnetic field, due to both wires, at point X midway between the
wires.
A) 0.15 Gauss
B) 0.79 Gauss
C) 0.29 Gauss
D) 0.0 Gauss
E) 0.59 Gauss
An unknown tuning fork is sounded along with a tuning fork whose frequency is 256.
Hz and a beat frequency of 3. Hz is heard. What is the frequency of the unknown tuning
fork?
A) It must be 256 Hz.
B) It must be 259 Hz.
C) It could be either 253 Hz or 259 Hz; there is no way to tell.
D) It must be 253 Hz.
How might one connect four 10. volt batteries to create one equivalent battery having a
potential of 20. volts?
A mortar shell is launched with a velocity of 100 m/s at an angle of 30.0 above
horizontal from a point on a cliff 50.0 m above a level plain below. How far from the
base of the cliff does the mortar shell strike the ground?
How long does it take a light beam to cross a 6. m wide room? If the air were replaced
with a transparent medium of index n, how much longer would it take?
An astronaut on a strange new planet finds that she can jump up to a maximum height
of 27. meters when her initial upward speed is 6.0 m/s. What is the magnitude of the
acceleration of gravity on the planet?
A student wishes to build a telescope. She has available an eyepiece of focal length -5.0
cm. What focal length objective is needed to obtain a magnification of 10x?
An engine on each cycle takes in 40. Joules, does 10. Joules of work, and expels 30. J
of heat. What is its efficiency?
At what temperature are the numerical readings on the Fahrenheit and Celsius scales the
same?
In the formula v2 = vo
2 + 2 a x, what does x represent?
A pickup truck moves 25. m/s Eastward. Jerry is standing in the back and throws a
baseball in what to him is the Southwest direction at 28. m/s (with respect to the truck).
A person at rest would see the ball moving HOW FAST in WHAT DIRECTION?
List the three ways that an emf can be induced in a loop of wire.
A 2-qt bottle of soda is on sale for $1.29. What should be the price of a 2-Liter bottle of
the same soda to yield the same value?
Jane swims the length of a 40. meter pool in 10. seconds and immediately swims back
to the starting position in another 15. seconds. What was her average velocity?
The atomic bomb that was dropped on Nagasaki in 1945 killed 140,000 people, helping
to end World War II on the next day. It released energy equivalent to that of 20,000 tons
of TNT explosive. How much mass was converted to energy when this took place?
(1000 tons 4.3 x 10⇔12 J) (Incidentally, modern H-bombs have energy yields 1000
times as much!)
The thermal coefficient of linear expansion of Copper is 1.7 x 10-5 C°-1. What is the
thermal volume expansion coefficient?
Distinguish between stress and strain.
The end of a cylindrical plastic rod is polished and cut perpendicular to the axis of the
cylinder. Determine the minimum index of refraction so that a light ray entering the end
of the rod will always be totally internally reflected within the rod, i.e., it will never
escape the rod until it comes to the other end. Assume a critical angle of 45.
What is the gravitational force on a 70. kg person on the Earth, due to the moon? The
mass of the moon is 7.36 1022 kg and the distance to the moon is 3.82 108 m.
The curved surface of a 50. cm focal length “plano-convex” lens has a radius of
curvature of 30. cm. What is the refractive index of the glass?