Hide all answers
Hide all answers
View all answers
View all answers
Print
Try the Quiz
Part A
Answer all questions in this part.
Directions (1–35): For each statement or question, choose the word or expression that, of those given, best
completes the statement or answers the question. Some questions may require the use of the 2006 Edition
Reference Tables for Physical Setting/Physics. Record your answers on your separate answer sheet.

1 Which term identifies a scalar quantity?
(1) displacement (3) velocity
(2) momentum (4) time Answer: 4
2 Two 20newton forces act concurrently on
an object. What angle between these forces will
produce a resultant force with the greatest
magnitude?
(1) 0° (3) 90°
(2) 45° (4) 180° Answer: 1
3 A car traveling west in a straight line on a highway
decreases its speed from 30.0 meters per second
to 23.0 meters per second in 2.00 seconds. The
car’s average acceleration during this time
interval is
(1) 3.5 m/s^{2} east (3) 13 m/s^{2} east
(2) 3.5 m/s^{2} west (4) 13 m/s^{2} west Answer: 1
4 In a race, a runner traveled 12 meters in
4.0 seconds as she accelerated uniformly from
rest. The magnitude of the acceleration of the
runner was
(1) 0.25 m/s^{2} (3) 3.0 m/s^{2}
(2) 1.5 m/s^{2} (4) 48 m/s^{2} Answer: 2
5 A projectile is launched at an angle above the
ground. The horizontal component of the
projectile’s velocity, v_{x} , is initially 40 meters per
second. The vertical component of the projectile’s
velocity, v_{y} , is initially 30. meters per second.
What are the components of the projectile’s
velocity after 2.0 seconds of flight? [Neglect
friction.]
(1) v_{x} = 40. m/s and v_{y} = 10. m/s
(2) v_{x} = 40. m/s and v_{y} = 30. m/s
(3) v_{x} = 20. m/s and v_{y} = 10. m/s
(4) v_{x} = 20. m/s and v_{y} = 30. m/s Answer: 1
6 A ball is thrown with an initial speed of 10 meters
per second. At what angle above the horizontal
should the ball be thrown to reach the greatest
height?
(1) 0° (3) 45°
(2) 30° (4) 90° Answer: 4
7 Which object has the greatest inertia?
(1) a 0.010kg bullet traveling at 90. m/s
(2) a 30.kg child traveling at 10. m/s on her bike
(3) a 490kg elephant walking with a speed of
1.0 m/s
(4) a 1500kg car at rest in a parking lot Answer: 4
8 An 8.0newton wooden block slides across a
horizontal wooden floor at constant velocity.
What is the magnitude of the force of kinetic
friction between the block and the floor?
(1) 2.4 N (3) 8.0 N
(2) 3.4 N (4) 27 N Answer: 1
9 Which situation represents a person in equilibrium?
(1) a child gaining speed while sliding down a slide
(2) a woman accelerating upward in an elevator
(3) a man standing still on a bathroom scale
(4) a teenager driving around a corner in his car Answer: 3
10 A rock is thrown straight up into the air. At the
highest point of the rock’s path, the magnitude of
the net force acting on the rock is
(1) less than the magnitude of the rock’s weight,
but greater than zero
(2) greater than the magnitude of the rock’s
weight
(3) the same as the magnitude of the rock’s
weight
(4) zero Answer: 3
11 The diagram below shows a compressed spring
between two carts initially at rest on a horizontal,
frictionless surface. Cart A has a mass of 2 kilograms
and cart B has a mass of 1 kilogram. A string holds
the carts together.
The string is cut and the carts move apart.
Compared to the magnitude of the force the
spring exerts on cart A, the magnitude of the force
the spring exerts on cart B is
(1) the same (3) twice as great
(2) half as great (4) four times as great Answer: 1
12 An 8.0newton block is accelerating down a
frictionless ramp inclined at 15° to the horizontal,
as shown in the diagram below.
What is the magnitude of the net force causing
the block’s acceleration?
(1) 0 N (3) 7.7 N
(2) 2.1 N (4) 8.0 N
Answer: 2
13 At a certain location, a gravitational force with
a magnitude of 350 newtons acts on a 70.kilogram
astronaut. What is the magnitude of the gravitational
field strength at this location?
(1) 0.20 kg/N (3) 9.8 m/s^{2}
(2) 5.0 N/kg (4) 25 000 N•kg Answer: 2
14 A spring gains 2.34 joules of elastic potential
energy as it is compressed 0.250 meter from its
equilibrium position. What is the spring constant
of this spring?
(1) 9.36 N/m (3) 37.4 N/m
(2) 18.7 N/m (4) 74.9 N/m Answer: 4
15 When a teacher shines light on a photocell
attached to a fan, the blades of the fan turn. The
brighter the light shone on the photocell, the
faster the blades turn. Which energy conversion
is illustrated by this demonstration?
(1) light → thermal → mechanical
(2) light → nuclear → thermal
(3) light → electrical → mechanical
(4) light → mechanical → chemical Answer: 3
16 Which statement describes a characteristic
common to all electromagnetic waves and
mechanical waves?
(1) Both types of waves travel at the same speed.
(2) Both types of waves require a material medium
for propagation.
(3) Both types of waves propagate in a vacuum.
(4) Both types of waves transfer energy. Answer: 4
17 An electromagnetic wave is produced by charged
particles vibrating at a rate of 3.9 × 10^{8} vibrations
per second. The electromagnetic wave is classified
as
(1) a radio wave (3) an x ray
(2) an infrared wave (4) visible light Answer: 1
18 The energy of a sound wave is most closely
related to the wave’s
(1) frequency (3) wavelength
(2) amplitude (4) speed Answer: 2
19 A sound wave traveling eastward through air
causes the air molecules to
(1) vibrate east and west
(2) vibrate north and south
(3) move eastward, only
(4) move northward, only Answer: 1
20 What is the speed of light (f = 5.09 × 10^{14} Hz) in
ethyl alcohol?
(1) 4.53 × 10^{−9} m/s (3) 1.24 × 10^{8} m/s
(2) 2.43 × 10^{2} m/s (4) 2.21 × 10^{8} m/s Answer: 4
21 In the diagram below, an ideal pendulum released from position A swings freely to position B.
As the pendulum swings from A to B, its total mechanical energy
(1) decreases, then increases (3) increases, then decreases
(2) increases, only (4) remains the same Answer: 4
22 The diagram below represents a periodic wave.
Which two points on the wave are out of phase?
(1) A and C (3) C and E
(2) B and F (4) D and G Answer: 4
23 A dry plastic rod is rubbed with wool cloth and then held near a thin stream of water from a faucet. The
path of the stream of water is changed, as represented in the diagram below.
Which force causes the path of the stream of water to change due to the plastic rod?
(1) nuclear (3) electrostatic
(2) magnetic (4) gravitational Answer: 3
24 A distance of 1.0 × 10^{−2} meter separates successive
crests of a periodic wave produced in a shallow
tank of water. If a crest passes a point in the tank
every 4.0 × 10^{−1} second, what is the speed of this
wave?
(1) 2.5 × 10^{−4} m/s (3) 2.5 × 10^{−2} m/s
(2) 4.0 × 10^{−3} m/s (4) 4.0 × 10^{−1} m/s Answer: 3
25 One vibrating 256hertz tuning fork transfers
energy to another 256hertz tuning fork, causing
the second tuning fork to vibrate. This
phenomenon is an example of
(1) diffraction (3) refraction
(2) reflection (4) resonance Answer: 4
26 Sound waves are produced by the horn of a truck
that is approaching a stationary observer.
Compared to the sound waves detected by the
driver of the truck, the sound waves detected by
the observer have a greater
(1) wavelength (3) period
(2) frequency (4) speed Answer: 2
27 The electronvolt is a unit of
(1) energy
(2) charge
(3) electric field strength
(4) electric potential difference Answer: 1
28 Which particle would produce a magnetic field?
(1) a neutral particle moving in a straight line
(2) a neutral particle moving in a circle
(3) a stationary charged particle
(4) a moving charged particle Answer: 4
29 A physics student takes her pulse and determines
that her heart beats periodically 60 times in
60 seconds. The period of her heartbeat is
(1) 1 Hz (3) 1 s
(2) 60 Hz (4) 60 s Answer: 3
30 Moving 4.0 coulombs of charge through a circuit
requires 48 joules of electric energy. What is the
potential difference across this circuit?
(1) 190 V (3) 12 V
(2) 48 V (4) 4.0 V Answer: 3
31 The diagram below shows currents in a segment
of an electric circuit.
What is the reading of ammeter A?
(1) 1 A (3) 9 A
(2) 5 A (4) 15 A Answer: 3
32 An electric dryer consumes 6.0 × 10^{6} joules of
electrical energy when operating at 220 volts for
1.8 × 10^{3} seconds. During operation, the dryer
draws a current of
(1) 10. A (3) 9.0 × 10^{2} A
(2) 15 A (4) 3.3 × 10^{3} A Answer: 2
33 Which net charge could be found on an object?
(1) +4.80 × 10^{−19} C (3) −2.40 × 10^{−19} C
(2) +2.40 × 10^{−19} C (4) −5.60 × 10^{−19} C Answer: 1
34 A photon is emitted as the electron in a hydrogen
atom drops from the n = 5 energy level directly to
the n = 3 energy level. What is the energy of the
emitted photon?
(1) 0.85 eV (3) 1.51 eV
(2) 0.97 eV (4) 2.05 eV Answer: 2
35 In a process called pair production, an energetic
gamma ray is converted into an electron and
a positron. It is not possible for a gamma ray to be
converted into two electrons because
(1) charge must be conserved
(2) momentum must be conserved
(3) massenergy must be conserved
(4) baryon number must be conserved Answer: 1
Part B–1
Answer all questions in this part.
Directions (36–50): For each statement or question, choose the word or expression that, of those given, best
completes the statement or answers the question. Some questions may require the use of the 2006 Edition
Reference Tables for Physical Setting/Physics. Record your answers on your separate answer sheet.

36 The approximate length of an unsharpened No. 2
pencil is
(1) 2.0 × 10^{−2} m (3) 2.0 × 10^{0} m
(2) 2.0 × 10^{−1} m (4) 2.0 × 10^{1} m Answer: 2
37 The diagram below shows an 8.0kilogram cart
moving to the right at 4.0 meters per second about
to make a headon collision with a 4.0kilogram
cart moving to the left at 6.0 meters per second.
After the collision, the 4.0kilogram cart moves to
the right at 3.0 meters per second. What is the
velocity of the 8.0kilogram cart after the collision?
(1) 0.50 m/s left (3) 5.5 m/s left
(2) 0.50 m/s right (4) 5.5 m/s right Answer: 1
38 Four forces act concurrently on a block on a
horizontal surface as shown in the diagram below.
As a result of these forces, the block
(1) moves at constant speed to the right
(2) moves at constant speed to the left
(3) accelerates to the right
(4) accelerates to the left Answer: 4
39 If a motor lifts a 400.kilogram mass a vertical
distance of 10. meters in 8.0 seconds, the
minimum power generated by the motor is
(1) 3.2 × 10^{2} W (3) 4.9 × 10^{3} W
(2) 5.0 × 10^{2} W (4) 3.2 × 10^{4} W Answer: 3
40 A 4.0kilogram object is accelerated at 3.0 meters
per second^{2} north by an unbalanced force. The
same unbalanced force acting on a 2.0kilogram
object will accelerate this object toward the north at
(1) 12 m/s^{2} (3) 3.0 m/s^{2}
(2) 6.0 m/s^{2} (4) 1.5 m/s^{2} Answer: 2
41 An electron is located in an electric field of
magnitude 600. newtons per coulomb. What is
the magnitude of the electrostatic force acting on
the electron?
(1) 3.75 × 10^{21} N (3) 9.60 × 10^{−17} N
(2) 6.00 × 10^{2} N (4) 2.67 × 10^{−22} N Answer: 3
42 The current in a wire is 4.0 amperes. The time
required for 2.5 × 10^{19} electrons to pass a certain
point in the wire is
(1) 1.0 s (3) 0.50 s
(2) 0.25 s (4) 4.0 s Answer: 1
43 When two point charges of magnitude q_{1} and q_{2}
are separated by a distance, r, the magnitude of
the electrostatic force between them is F. What
would be the magnitude of the electrostatic force
between point charges 2q_{1} and 4q_{2} when
separated by a distance of 2r?
(1) F (3) 16F
(2) 2F (4) 4F Answer: 2
44 The composition of a meson with a charge of
−1 elementary charge could be
Answer: 1
45 Which graph represents the relationship between the kinetic energy and the speed of a freely falling object?
Answer: 3
46 Which diagram represents the electric field between two oppositely charged conducting spheres?
Answer: 3
47 Which graph represents the relationship between the magnitude of the gravitational force, F_{g}, between two
masses and the distance, r, between the centers of the masses?
Answer: 4
48 The diagram below shows two waves traveling toward each other at equal speed in a uniform medium.
When both waves are in the region between points A and B, they will undergo
(1) diffraction (3) destructive interference
(2) the Doppler effect (4) constructive interference Answer: 4
49 The diagram below shows a series of straight wave fronts produced in a shallow tank of water approaching
a small opening in a barrier.
Which diagram represents the appearance of the wave fronts after passing through the opening in the
barrier?
Answer: 1
50 The graph below represents the relationship between energy and the equivalent mass from which it can be
converted.
The slope of this graph represents
(1) c (3) g
(2) c^{2} (4) g^{2} Answer: 2
Part B–2
Answer all questions in this part.
Directions (51–65): Record your answers in the spaces provided in your answer booklet. Some questions
may require the use of the 2006 Edition Reference Tables for Physical Setting/Physics.

51–52 A 25.0meter length of platinum wire with a crosssectional area of 3.50 × 10^{−6} meter^{2} has a resistance
of 0.757 ohm at 20°C. Calculate the resistivity of the wire. [Show all work, including the equation and
substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW51 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
52 [1] Allow 1 credit for the correct answer with units.
Examples of 1credit responses:
Note: Allow credit for an answer that is consistent with the student’s response to question 51.
Do not penalize the student more than 1 credit for errors in units in questions 51 and 52.
53 The diagram below represents a periodic wave moving along a rope.
On the grid in your answer booklet, draw at least one full wave with the same amplitude and half the
wavelength of the given wave. [1] Answer: MODEL ANSWER GIVEN BELOW53 [1] Allow 1 credit for at least one complete wave with an amplitude of 0.1 m and a wavelength of 2 m,
regardless of phase or shape.
Example of a 1credit response:
Note: If more than one cycle is drawn, grade only the first cycle.
54–55 A baseball bat exerts an average force of 600. newtons east on a ball, imparting an impulse of
3.6 newton•seconds east to the ball. Calculate the amount of time the baseball bat is in contact with
the ball. [Show all work, including the equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW54 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
55 [1] Allow 1 credit for a correct answer with units.
Examples of 1credit responses:
t = 0.0060 s or t = 6.0 × 10^{−3} s
Note: Allow credit for an answer that is consistent with the student’s response to question 54.
Do not penalize the student more than 1 credit for errors in units in questions 54 and 55.
56 The diagram below shows the north pole of one bar magnet located near the south pole of another
bar magnet.
On the diagram in your answer booklet, draw three magnetic field lines in the region between the
magnets. [1] Answer: MODEL ANSWER GIVEN BELOW56 [1] Allow 1 credit for three field lines drawn showing the correct shape and direction of the field.
Examples of 1credit responses:
Base your answers to questions 57 through 59 on the information and graph below.
The graph below shows the relationship between speed and elapsed time for a car moving in a
straight line.
Speed vs. Time
57 Determine the magnitude of the acceleration of the car. [1] Answer: MODEL ANSWER GIVEN BELOW57 [1] Allow 1 credit for 1.25 m/s^{2} ± 0.05 m/s^{2}.
58–59 Calculate the total distance the car traveled during the time interval 4.0 seconds to 8.0 seconds.
[Show all work, including the equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW58 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Examples of 1credit responses:
Note: Allow credit for an answer that is consistent with the student’s response to question 57.
59 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
d = 30. m
Note: Allow credit for an answer that is consistent with the student’s response to question 58.
Do not penalize the student more than 1 credit for errors in units in questions 58 and 59.
Base your answers to questions 60 through 62 on the information below.
A 20.ohm resistor, R_{1}, and a resistor of unknown resistance, R_{2}, are connected in parallel to
a 30.volt source, as shown in the circuit diagram below. An ammeter in the circuit reads 2.0 amperes.
60 Determine the equivalent resistance of the circuit. [1] Answer: MODEL ANSWER GIVEN BELOW60 [1] Allow 1 credit for 15 Ω.
61–62 Calculate the resistance of resistor R_{2}. [Show all work, including the equation and substitution with
units.] [2] Answer: MODEL ANSWER GIVEN BELOW61 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Examples of 1credit responses:
Note: Allow credit for substitution consistent with the student’s response to question 60.
62 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
Note: Allow credit for an answer that is consistent with the student’s response to question 61.
Do not penalize the student more than 1 credit for errors in units in questions 61 and 62.
Base your answers to questions 63 through 65 on the information below.
A 28gram rubber stopper is attached to a string and whirled clockwise in a horizontal circle
with a radius of 0.80 meter. The diagram in your answer booklet represents the motion of the
rubber stopper. The stopper maintains a constant speed of 2.5 meters per second.
63–64 Calculate the magnitude of the centripetal acceleration of the stopper. [Show all work, including
the equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW63 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
64 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
Note: Allow credit for an answer that is consistent with the student’s response to question 63.
Do not penalize the student more than 1 credit for errors in units in questions 63 and 64.
65 On the diagram in your answer booklet, draw an arrow showing the direction of the centripetal force
acting on the stopper when it is at the position shown. [1] Answer: MODEL ANSWER GIVEN BELOW65 [1] Allow 1 credit for an arrow drawn on the string and directed toward the center of curvature or drawn
alongside and parallel to the string.
Example of a 1credit response:
Note: Do not allow credit if more than one arrow is drawn, unless the correct arrow is labeled
appropriately.
Part C
Answer all questions in this part.
Directions (66–85): Record your answers in the spaces provided in your answer booklet. Some questions
may require the use of the 2006 Edition Reference Tables for Physical Setting/Physics.

Base your answers to questions 66 through 69 on the information below.
Auroras over the polar regions of Earth are caused by collisions between charged particles from
the Sun and atoms in Earth’s atmosphere. The charged particles give energy to the atoms, exciting
them from their lowest available energy level, the ground state, to higher energy levels, excited
states. Most atoms return to their ground state within 10. nanoseconds.
In the higher regions of Earth’s atmosphere, where there are fewer interatom collisions, a few
of the atoms remain in excited states for longer times. For example, oxygen atoms remain in an
excited state for up to 1.0 second. These atoms account for the greenish and red glows of
the auroras. As these oxygen atoms return to their ground state, they emit green photons
( f = 5.38 × 10^{14} Hz) and red photons ( f = 4.76 × 10^{14} Hz). These emissions last long enough to
produce the changing aurora phenomenon.
66 What is the order of magnitude of the time, in seconds, that most atoms spend in an excited state? [1] Answer: MODEL ANSWER GIVEN BELOW66 [1] Allow 1 credit for −8 or 10^{−8}.
Note: Allow credit for a correct answer that also includes the unit “s”.
Do not allow credit for 10 nanoseconds or a decimal form, such as 0.000000010 s.
67–68 Calculate the energy of a photon, in joules, that accounts for the red glow of the aurora. [Show all
work, including the equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW67 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
E = hf
E = (6.63 × 10^{−34} J•s)(4.76 × 10^{14} Hz)
68 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
E = 3.16 × 10^{−19} J
Note: Allow credit for an answer that is consistent with the student’s response to question 67.
Do not penalize the student more than 1 credit for errors in units in questions 67 and 68.
69 Explain what is meant by an atom being in its ground state. [1] Answer: MODEL ANSWER GIVEN BELOW69 [1] Allow 1 credit for stating that the ground state is the lowest available energy level that an atom can
have or that the ground state is the most stable energy state.
Base your answers to questions 70 through 75 on the information below.
A girl rides her bicycle 1.40 kilometers west, 0.70 kilometer south, and 0.30 kilometer east in
12 minutes. The vector diagram in your answer booklet represents the girl’s first two displacements
in sequence from point P. The scale used in the diagram is 1.0 centimeter = 0.20 kilometer.
70–71 On the vector diagram in your answer booklet, using a ruler and a protractor, construct the following
vectors:
• Starting at the arrowhead of the second displacement vector, draw a vector to represent the
0.30 kilometer east displacement. Label the vector with its magnitude. [1]
• Draw the vector representing the resultant displacement of the girl for the entire bicycle trip and
label the vector R. [1] Answer: MODEL ANSWER GIVEN BELOW70 [1] Allow 1 credit for a 1.5cmlong vector ± 0.2 cm, directed east from the arrowhead of the second
displacement vector, and labeled 0.30 km.
71 [1] Allow 1 credit for a vector drawn from P to the tip of the arrowhead of the student’s drawn vector in
the previous response, and labeled R.
Example of a 1credit response for question 70 and a 1credit response for question 71:
Note: Deduct only 1 credit for missing labels and/or arrowheads for questions 70 and 71.
72–73 Calculate the girl’s average speed for the entire bicycle trip. [Show all work, including the equation
and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW72 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Examples of 1credit responses:
73 [1] Allow 1 credit for a correct answer with units.
Examples of 1credit responses:
Note: Allow credit for an answer that is consistent with the student’s response to question 72.
Do not penalize the student more than one credit for errors in units in questions 72 and 73.
74 Determine the magnitude of the girl’s resultant displacement for the entire bicycle trip, in kilometers. [1] Answer: MODEL ANSWER GIVEN BELOW74 [1] Allow 1 credit for 1.3 km ± 0.2 km or an answer that is consistent with the student’s response to
question 71.
75 Determine the measure of the angle, in degrees, between the resultant and the 1.40kilometer
displacement vector. [1] Answer: MODEL ANSWER GIVEN BELOW75 [1] Allow 1 credit for 32° ± 2° or an answer that is consistent with the student’s response to question 71
(the angle at P).
Base your answers to questions 76 through 80 on the information below.
A light ray with a frequency of 5.09 × 10^{14} hertz traveling in water has an angle of incidence of
35° on a waterair interface. At the interface, part of the ray is reflected from the interface and part
of the ray is refracted as it enters the air.
76 What is the angle of reflection of the light ray at the interface? [1] Answer: MODEL ANSWER GIVEN BELOW76 [1] Allow 1 credit for 35°.
77 On the diagram in your answer booklet, using a protractor and a straightedge, draw the reflected ray. [1] Answer: MODEL ANSWER GIVEN BELOW77 [1] Allow 1 credit for drawing the reflected ray at an angle of 35° ± 2° to the normal.
Example of a 1credit response:
Note: Allow credit for an answer that is consistent with the student’s response to question 76.
78–79 Calculate the angle of refraction of the light ray as it enters the air. [Show all work, including the
equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW78 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
79 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
Note: Allow credit for an answer that is consistent with the student’s response to question 78.
Do not penalize the student more than 1 credit for errors in units in questions 78 and 79.
80 Identify one characteristic of this light ray that is the same in both the water and the air. [1] Answer: MODEL ANSWER GIVEN BELOW80 [1] Allow 1 credit for frequency, period, phase, color, or transverse.
Base your answers to questions 81 through 85 on the information and diagram below.
A 30.4newton force is used to slide a 40.0newton crate a distance of 6.00 meters at constant
speed along an incline to a vertical height of 3.00 meters.
81 Determine the total work done by the 30.4newton force in sliding the crate along the incline. [1] Answer: MODEL ANSWER GIVEN BELOW81 [1] Allow 1 credit for 182 J.
82–83 Calculate the total increase in the gravitational potential energy of the crate after it has slid
6.00 meters along the incline. [Show all work, including the equation and substitution with units.] [2] Answer: MODEL ANSWER GIVEN BELOW82 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations
in this rating guide.
Example of a 1credit response:
83 [1] Allow 1 credit for the correct answer with units.
Example of a 1credit response:
Note: Allow credit for an answer that is consistent with the student’s response to question 82.
Do not penalize the student more than 1 credit for errors in units in questions 82 and 83.
84 State what happens to the kinetic energy of the crate as it slides along the incline. [1] Answer: MODEL ANSWER GIVEN BELOW84 [1] Allow 1 credit for indicating that the kinetic energy of the crate is constant.
85 State what happens to the internal energy of the crate as it slides along the incline. [1] Answer: MODEL ANSWER GIVEN BELOW85 [1] Allow 1 credit for indicating that the internal energy of the crate increases.
Note: Allow credit for an answer that is consistent with the student’s responses to questions 81 and 83.
Try the Quiz : Physical Setting / Physics  New York Regents June 2013 Exam
