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Physical Setting / Physics - New York Regents June 2013 Exam

   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.

Formats Worksheet / Test Paper Quiz Review
: Multiple choice

Your Performance  

1.

1 Which term identifies a scalar quantity?
  (1) displacement         (3) velocity
  (2) momentum             (4) time

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2.

2 Two 20-newton 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°

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3.

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/s2 east           (3) 13 m/s2 east
  (2) 3.5 m/s2 west           (4) 13 m/s2 west

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4.

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/s2           (3) 3.0 m/s2
  (2) 1.5 m/s2            (4) 48 m/s2

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5.

5 A projectile is launched at an angle above the
  ground. The horizontal component of the
  projectile’s velocity, vx , is initially 40 meters per
  second. The vertical component of the projectile’s
  velocity, vy , is initially 30. meters per second.
  What are the components of the projectile’s
  velocity after 2.0 seconds of flight? [Neglect
  friction.]
  (1) vx = 40. m/s and vy = 10. m/s
  (2) vx = 40. m/s and vy = 30. m/s
  (3) vx = 20. m/s and vy = 10. m/s
  (4) vx = 20. m/s and vy = 30. m/s

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6.

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°

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7.

7 Which object has the greatest inertia?
  (1) a 0.010-kg bullet traveling at 90. m/s
  (2) a 30.-kg child traveling at 10. m/s on her bike
  (3) a 490-kg elephant walking with a speed of
      1.0 m/s
  (4) a 1500-kg car at rest in a parking lot

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8.

8 An 8.0-newton 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

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9.

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

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10.

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

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11.

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

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12.

12 An 8.0-newton 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

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13.

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/s2
   (2) 5.0 N/kg                (4) 25 000 N•kg

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14.

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

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15.

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

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16.

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.

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17.

17 An electromagnetic wave is produced by charged
   particles vibrating at a rate of 3.9 × 108 vibrations
   per second. The electromagnetic wave is classified
   as
   (1) a radio wave            (3) an x ray
   (2) an infrared wave        (4) visible light

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18.

18 The energy of a sound wave is most closely
   related to the wave’s
   (1) frequency         (3) wavelength
   (2) amplitude         (4) speed

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19.

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

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20.

20 What is the speed of light (f = 5.09 × 1014 Hz) in
   ethyl alcohol?
   (1) 4.53 × 10−9 m/s       (3) 1.24 × 108 m/s
   (2) 2.43 × 102 m/s        (4) 2.21 × 108 m/s

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21.

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

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22.

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

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23.

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

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24.

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

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25.

25 One vibrating 256-hertz tuning fork transfers
   energy to another 256-hertz tuning fork, causing
   the second tuning fork to vibrate. This
   phenomenon is an example of
   (1) diffraction         (3) refraction
   (2) reflection          (4) resonance

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26.

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

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27.

27 The electronvolt is a unit of
   (1) energy
   (2) charge
   (3) electric field strength
   (4) electric potential difference

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28.

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

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29.

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

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30.

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

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31.

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

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32.

32 An electric dryer consumes 6.0 × 106 joules of
   electrical energy when operating at 220 volts for
   1.8 × 103 seconds. During operation, the dryer
   draws a current of
   (1) 10. A                (3) 9.0 × 102 A
   (2) 15 A                 (4) 3.3 × 103 A

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33.

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

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34.

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

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35.

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) mass-energy must be conserved
   (4) baryon number must be conserved

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