SS Review for Final

1
SS Review for Final

• June 16, 2004

2
Velocity is to speed as displacement is to (A)
acceleration (B) momentum (C) time (D) distance
3
The diagram shows a resultant vector, R.
Which diagram best represents a
pair of component vectors, A and B, that would
combine to form resultant vector R?
4
A person is standing on a bathroom scale in an
elevator car. If the scale reads a value greater
than the weight of the person at rest, the
elevator car could be moving (A) downward at
constant speed (B) upward at constant speed (C)
downward at increasing speed (D) upward at
increasing speed
5
The diagram represents the path of an object
after it was thrown. What happens to the objects
acceleration as it travels from A to B? (A) It
decreases. (B) It increases. (C) It remains the
same.
6
A 0.2-kg red ball is thrown horizontally at a
speed of 4 m/s from a height of 3 meters. A
0.4-kg green ball is thrown horizontally from
the same height at a speed of 8 m/s. Compared to
the time it takes the red ball to reach the
ground, the time it takes the green ball to reach
the ground is (A) one-half as great (B) the
same (C) twice as great (D) four times as great
7
The acceleration due to gravity on the surface of
planet X is 19.6 meters per second2. If an object
on the surface of this planet weighs 980 Newtons,
the mass of the object is (A) 50.0 kg (B) 490
N (C) 100 kg (D) 908 N
8
A basketball player jumped straight up to grab a
rebound. If she was in the air for 0.80 second,
how high did she jump? (A) 0.50 m (B) 1.2
m (C) 0.78 m (D) 3.1 m
9
The force required to start an object sliding
across a uniform horizontal surface is larger
than the force required to keep the object
sliding at a constant velocity. The magnitudes of
the required forces are different in these
situations because the force of kinetic
friction (A) is greater than the force of static
friction (B) is less than the force of static
friction (C) increases as the speed of the object
relative to the surface increases (D)
decreases as the speed of the object relative to
the surface increases
10
A 50-kilogram student threw a 0.40-kilogram ball
with a speed of 20 meters per second. What was
the magnitude of the impulse that the
student exerted on the ball? (A) 8.0 Ns (B)
4.0 102 Ns (C) 78 Ns (D) 1.0 103 Ns
11
A man is pushing a baby stroller. Compared to the
magnitude of the force exerted on the stroller by
the man, the magnitude of the force exerted on
the man by the stroller is (A) zero (B) smaller,
but greater than zero (C) larger (D) the same
12
The work done in moving a block across a rough
surface and the heat energy gained by the block
can both be measured in (A) Watts (B)
Newtons (C) Degrees (D) Joules
13
Two weightlifters, one 1.5 meters tall and one
2.0 meters tall, raise identical 50-kilogram
masses above their heads. Compared to the work
done by the weightlifter who is 1.5 meters tall,
the work done by the weightlifter who is 2.0
meters tall is (A) less (B) greater (C) the same
14
A 45.0-kilogram boy is riding a 15.0-kilogram
bicycle with a speed of 8.00 meters per second.
What is the combined kinetic energy of the boy
and the bicycle? (A) 240. J (B) 1440 J (C) 480
J (D) 1920 J
15
A 5-newton force causes a spring to stretch 0.2
meter. What is the potential energy stored in the
stretched spring? (A) 1 J (B) 0.2 J (C) 0.5 J
(D) 0.1 J
16
A 40-kilogram student runs up a staircase to a
floor that is 5.0 meters higher than her starting
point in 7.0 seconds. The students power output
is (A) 29 W (B) 1.4 103 W (C) 280 W (D) 1.4
104 W
17
Which type of field is present near a moving
electric charge? (A) an electric field, only (B)
a magnetic field, only (C) both an electric field
and a magnetic field (D) neither an electric
field nor a magnetic field
18
A negatively charged plastic comb is brought
close to, but does not touch, a small piece of
paper. If the comb and the paper are attracted to
each other, the charge on the paper (A) may be
negative or neutral (B) may be positive or
neutral (C) must be negative (D) must be positive
19
The current traveling from the cathode to the
screen in a television picture tube is 5.0 105
ampere. How many electrons strike the screen in
5.0 seconds? (1 C 6.241018) (A) 3.1 1024
(B) 1.6 1015 (C) 6.3 1018 (D) 1.0 105
20
A moving electron is deflected by two oppositely
charged parallel plates, as shown in the diagram.
The electric field between the plates is directed
from (A) A to B (B) C to D (C) B to A (D) D to
C
21
The diagram shows two identical metal spheres, A
and B, separated by distance d. Each sphere has
mass m and possesses charge q. Which diagram best
represents the electrostatic force Fe and the
gravitational force Fg acting on sphere B due to
sphere A?
22
The electric circuit consists of a 12-volt
battery, a 3.0-ohm resistor, R1, and a variable
resistor, R2. At what value must the variable
resistor be set to produce a current of 1.0
ampere through R1? (A) 6.0 O (B) 3.0 O (C) 9.0
O (D) 12 O
23
A single vibratory disturbance moving through a
medium is called (A) a node (B) a standing
wave (C) an antinode (D) a pulse
24
An electric bell connected to a battery is sealed
inside a large jar. What happens as the air is
removed from the jar? (A) The electric circuit
stops working because electromagnetic radiation
can not travel through a vacuum. (B) The bells
pitch decreases because the frequency of the
sound waves is lower in a vacuum than in
air. (C) The bells loudness increases because of
decreased air resistance. (D) The bells
loudness decreases because sound waves can not
travel through a vacuum.
25
As a sound wave passes from water, where the
speed is 1.49 103 meters per second, into air,
the waves speed (A) decreases and its
frequency remains the same (B) increases and its
frequency remains the same (C) remains the same
and its frequency decreases (D) remains the same
and its frequency increases
26
Which phenomenon occurs when an object absorbs
wave energy that matches the objects natural
frequency? (A) reflection (B) resonance (C)
diffraction (D) interference
27
A wave is diffracted as it passes through an
opening in a barrier. The amount of diffraction
that the wave undergoes depends on both the (A)
amplitude and frequency of the incident
wave (B) wavelength and speed of the incident
wave (C) wavelength of the incident wave and the
size of the opening (D) amplitude of the
incident wave and the size of the opening
28
A source of waves and an observer are moving
relative to each other. The observer will detect
a steadily increasing frequency if (A) he moves
toward the source at a constant speed (B) the
source moves away from him at a constant
speed (C) he accelerates toward the source (D)
the source accelerates away from him
29
Which wave diagram has both wavelength (?) and
amplitude (A) labeled correctly?
30
A laser beam is
directed at the
surface of a
smooth, calm

pond. Which
organisms could
be illuminated by the
laser light? (A) the bird and the fish (B) the
crab and the seaweed (C) the bird and the seaweed
(D) the crab and the fish
31
The diagram below represents two waves of equal
amplitude and frequency approaching point P as
they move through the same medium. As the two
waves pass through each other, the medium at
point P will (A) vibrate up and down (B)
vibrate into and out of the page (C) vibrate left
and right (D) remain stationary
32
A constant unbalanced force is applied to an
object for a period of time. Which graph best
represents the acceleration of the object as a
function of elapsed time?
33
The graph represents the kinetic energy,
gravitational potential energy, and total
mechanical energy of a moving block. Which best
describes the motion of the block? (A)
accelerating on a flat horizontal surface (B)
falling freely (C) sliding up a frictionless
incline (D) being lifted at constant velocity
34
The diameter of a United States penny is closest
to (A) 100 m (B) 101 m (C) 102 m (D) 103 m
35
A 20-ohm resistor and a 30-ohm resistor are
connected in parallel to a 12-volt battery as
shown. An ammeter is connected as shown. What is
the equivalent resistance of the circuit? (A) 10.
O (B) 25 O (C) 12 O (D) 50. O
36
A 20-ohm resistor and a 30-ohm resistor are
connected in parallel to a 12-volt battery as
shown. An ammeter is connected as shown. What is
the current reading of the ammeter? (A) 1.0 A
(B) 0.40 A (C) 0.60 A (D) 0.20 A
37
A 20-ohm resistor and a 30-ohm resistor are
connected in parallel to a 12-volt battery as
shown. An ammeter is connected as shown. What is
the power of the 30-ohm resistor? (A) 4.8 W (B)
12 W (C) 30 W (D) 75 W
38
Which graph best represents the relationship
between the magnitude of the electric field
strength, E, around a point charge and the
distance, r, from the point charge?
39
Several pieces of copper wire, all having the
same length but different diameters, are kept at
room temperature. Which graph best represents the
resistance, R, of the wires as a function of
their cross-sectional areas, A?
40
The combined mass of a race car and its driver is
600. kilograms. Traveling at constant speed, the
car completes one lap around a circular track of
radius 160 meters in 36 seconds. Calculate the
angular velocity of the car in rpm.
41
The combined mass of a race car and its driver is
600. kilograms. Traveling at constant speed, the
car completes one lap around a circular track of
radius 160 meters in 36 seconds. Calculate the
speed of the car in m/s.
42
The combined mass of a race car and its driver is
600 kilograms. Traveling at constant speed, the
car completes one lap around a circular track of
radius 160 meters in 36 seconds. Calculate the
magnitude of the centripetal acceleration of the
car in m/s2.
43
The combined mass of a race car and its driver is
600 kilograms. Traveling at constant speed, the
car completes one lap around a circular track of
radius 160 meters in 36 seconds. Calculate the
magnitude of the centripetal force of the car in
N.
44
An 8.00-kilogram ball is fired horizontally from
a 1.00 103-kilogram cannon initially at rest.
After having been fired, the momentum of the ball
is 2.40 103 kgm/s east. Calculate the
magnitude of the cannons velocity in m/s after
the ball is fired.
45
An 8.00-kilogram ball is fired horizontally from
a 1.00 103-kilogram cannon initially at rest.
After having been fired, the momentum of the ball
is 2.40 103 kgm/s east. Identify the
magnitude of the cannonballs velocity in m/s
after the ball is fired.
46
During a 5.0-second interval, an objects
velocity changes from 25 meters per second east
to 15 meters per second east. Determine the
magnitude of the objects acceleration in m/s2.
47
A student conducted an experiment to determine
the resistance of a light bulb. As she applied
various potential differences to the bulb, she
recorded the voltages and corresponding
currents. According to the graph, as the
potential difference increased, the resistance of
the light bulb (A) decreased (B) increased (C)
changed, but there is not enough information to
know which way
48
A student plucks a guitar string and the
vibrations produce a sound wave with a frequency
of 650 hertz. The sound wave produced can best be
described as a (A) transverse wave of constant
amplitude (B) longitudinal wave of constant
frequency (C) mechanical wave of varying
frequency (D) electromagnetic wave of varying
wavelengths
49
A student plucks a guitar string and the
vibrations produce a sound wave with a frequency
of 650 hertz. Calculate the wavelength in m of
the sound wave in air at STP.
50
A beam of light travels through medium X with a
speed of 1.80 108 meters per second.
Calculate the absolute index of refraction of
medium X.
51
A projectile has an initial horizontal velocity
of 15 meters per second and an initial vertical
velocity of 25 m/s. Determine the projectiles
horizontal displacement (in m) if the total time
of flight is 5.0 seconds.
52
A projectile has an initial horizontal velocity
of 15 meters per second and an initial vertical
velocity of 25 m/s. Determine the maximum
height of the projectile (in m) if the total time
of flight is 5.0 seconds.
53
A net force of 25 Newtons is applied horizontally
to a 10-kilogram block resting on a table. What
is the magnitude of the acceleration of the
block? (A) 0.0 m/s2 (B) 0.40 m/s2 (C) 0.26 m/s2
(D) 2.5 m/s2
54
The speed of a car is increased uniformly from 20
meters per second to 30 meters per second in 4.0
seconds. The magnitude of the cars average
acceleration in this 4.0-second interval is (A)
0.40 m/s2 (B) 10 m/s2 (C) 2.5 m/s2 (D) 13 m/s2
55
A roller coaster, traveling with an initial speed
of 15 m/s, decelerates uniformly at 7.0 m/s2 to
a full stop. Approximately how far does the
roller coaster travel during its
deceleration? (A) 1.0 m (B) 2.0 m (C) 16 m (D)
32 m
56
A 0.40-kg stone attached to a string. The stone
is moving at a constant speed of 4.0 m/s in a
horizontal circle having a radius of 0.80 meter.
What is the magnitude of the centripetal
acceleration in m/s2?
57
A 0.40-kg stone attached to a string. The stone
is moving at a constant speed of 4.0 m/s in a
horizontal circle having a radius of 0.80 meter.
What is the magnitude of the centripetal force
in N?
58
A box is at rest on an inclined plane. Which
vector best represents the direction of the
normal force acting on the box? (A) A (B) B
(C) C (D) D
59
If the magnitude of the gravitational force of
Earth on the Moon is F, the magnitude of the
gravitational force of the Moon on Earth is (A)
smaller than F (B) larger than F (C) equal to F
60
Which term represents a scalar quantity? (A)
distance (B) force (C) displacement (D) weight
61
A block weighing 15 Newtons is pulled to the top
of an incline that is 0.20 meter above the
ground. If 4.0 joules of work are needed to pull
the block the full length of the incline, how
much work is done against friction? (A) 1.0 J
(B) 0.0 J (C) 3.0 J (D) 7.0 J
62
As a spring is stretched, its elastic potential
energy (A) decreases (B) increases (C) remains
the same
63
A 1.0-kilogram rubber ball traveling east at
4.0 m/s hits a wall and bounces back toward the
west at 2.0 m/s. Compared to the kinetic energy
of the ball before it hits the wall, the kinetic
energy of the ball after it bounces off the wall
is (A) one-fourth as great (B) the same (C)
one-half as great (D) four times as great
64
An electroscope is a device with a metal knob, a
metal stem, and freely hanging metal leaves
used to detect charges. The leaf electroscope
is positively charged. As a positively charged
glass rod is brought near the knob of the
electroscope, the separation of the electroscope
leaves will (A) decrease (B) increase (C)
remain the same
65
In the circuit diagram, what are the correct
readings of voltmeters V1 and V2? (A) V1
reads 2.0 V and V2 reads 4.0 V (B) V1 reads 4.0
V and V2 reads 2.0 V (C) V1 reads 3.0 V and V2
reads 3.0 V (D) V1 reads 6.0 V and V2 reads 6.0 V
66
A physics student notices that 4.0 waves arrive
at the beach every 20 seconds. The frequency of
these waves is (A) 0.20 Hz (B) 16 Hz (C) 5.0
Hz (D) 80 Hz
67
An electric guitar is generating a sound of
constant frequency. An increase in which sound
wave characteristic would result in an increase
in loudness? (A) speed (B) period (C)
wavelength (D) amplitude
68
How many wavelengths separate point A and point
B? (A) 1.0 (B) 3.0 (C) 1.5 (D) 0.75
69
In a demonstration, a vibrating tuning fork
causes a nearby second tuning fork to begin to
vibrate with the same frequency. Which wave
phenomenon is illustrated by this
demonstration? (A) the Doppler effect (B)
nodes (C) resonance (D) interference
70
The wave fronts spread into the region behind a
barrier. Which wave phenomenon is represented in
the diagram? (1) reflection (2) refraction (3)
diffraction (4) standing waves
71
A wave pattern is produced by two sources located
at points A and B. Which phenomenon occurs at the
intersections of the circular wave fronts? (A)
diffraction (B) refraction (C) interference (D)
reflection
72
Which is an acceptable unit for impulse? (A) Nm
(B) J/s (C) Js (D) kgm/s
73
The centers of two 15.0-kilogram spheres are
separated by 3.00 meters. The magnitude of the
gravitational force between the two spheres is
approximately (A) 1.11 1010 N (B) 1.67
109 N (C) 3.34 1010 N (D) 5.00 109 N
74
During a collision, an 84-kilogram driver of a
car moving at 24 meters per second is brought to
rest by an inflating air bag in 1.2 seconds. The
magnitude of the force exerted on the driver by
the air bag is approximately (A) 7.0101 N (B)
1.7103 N (C) 8.2102 N (D) 2.0103 N
75
An apple weighing 1 Newton on the surface of
Earth has a mass of approximately (A) 1101
kg (B) 1100 kg (C) 1101 kg (D) 1102 kg
76
In raising an object vertically at a constant
speed of 2.0 meters per second, 10 Watts of power
is developed. The weight of the object is (A)
5.0 N (B) 40 N (C) 20 N (D) 50 N
77
Which diagram best represents magnetic flux lines
around a bar magnet?
78
In which situation is the net force on the object
equal to zero? (A) a satellite moving at
constant speed around Earth in a circular
orbit (B) an automobile braking to a stop (C) a
bicycle moving at constant speed on a
straight, level road (D) a pitched baseball
being hit by a bat
79
A 2.00 106-hertz radio signal is sent a
distance of 7.30 1010 meters from Earth to a
spaceship orbiting Mars. Approximately how much
time does it take the radio signal to travel from
Earth to the spaceship? (1) 4.1110-3 s (2)
2.43102 s (3) 2.19108 s (4) 1.461017 s
80
The spaceship is moving away from Earth when it
receives a radio signal from Earth. Compared to
the frequency of the signal sent from Earth, the
frequency of the signal received by the spaceship
is (A) lower (B) higher (C) the same
81
What is the total resistance of the circuit
segment? (A) 1.0 ? (B) 9.0 ? (C) 3.0 ?
(D) 27 ?
82
A 4.0-kilogram cart is moving to the right and a
6.0-kilogram cart moving to the left on a
horizontal frictionless surface. When the two
carts collide they lock together. The magnitude
of the total momentum of the two-cart system
after the collision is (A) 0.0 kgm/s (B) 6.0
kgm/s (C) 15 kgm/s (D) 30 kgm/s
83
A 10.0-kilogram mass are held at rest on a
frictionless 30.0 incline by force F. What is
the approximate magnitude of force F? (A) 9.81
N (B) 85.0 N (C) 49.1 N (D) 98.1 N
84
An archer uses a bow to fire two similar arrows
with the same string force. One arrow is fired at
an angle of 60 with the horizontal, and the
other is fired at an angle of 45 with the
horizontal. Compared to the arrow fired at 60,
the arrow fired at 45 has a (A) longer flight
time and longer horizontal range (B) longer
flight time and shorter horizontal range (C)
shorter flight time and longer horizontal range
(D) shorter flight time and shorter horizontal
range
85
The graph shows the velocity of a race car moving
along a straight line as a function of time. What
is the magnitude of the displacement of the car
from t 2.0 seconds to t 4.0 seconds? (A)
20 m (B) 40 m (C) 60 m (D) 80 m
85
86
Which vector diagram represents the greatest
magnitude of displacement for an object?
87
Which circuit diagram shows voltmeter V and
ammeter A correctly positioned to measure the
total potential difference of the circuit and the
current through each resistor?
88
What is the total electrical energy used by a
1500-watt hair dryer operating for 6.0
minutes? (A) 4.2 J (B) 250 J (C) 9.0103 J
(D) 5.4105 J
89
A periodic transverse wave has an amplitude of
0.20 meter and a wavelength of 3.0 meters. If the
frequency of this wave is 12 Hz, what is its
speed? (A) 0.25 m/s (C) 36 m/s (B) 12 m/s
(D) 4.0 m/s
90
A child is flying a kite, K. A student at point
B, located 100. meters away from point A
(directly underneath the kite), measures the
angle of elevation of the kite from the ground as
30. Determine the height, AK, in meters of the
kite.
91
A child is flying a kite, K. A student at point
B, located 100. meters away from point A
(directly underneath the kite), measures the
angle of elevation of the kite from the ground as
30. A small lead sphere is dropped from the
kite. Calculate the amount of time required for
the sphere to fall to the ground.