1.

1 Which quantity is scalar?
(1) mass (3) momentum
(2) force (4) acceleration

Hint
Half-n-half Clue
2.

2 What is the final speed of an object that starts
from rest and accelerates uniformly at 4.0 meters
per second^{2} over a distance of 8.0 meters?
(1) 8.0 m/s (3) 32 m/s
(2) 16 m/s (4) 64 m/s

Half-n-half Clue
3.

3 The components of a 15-meters-per-second
velocity at an angle of 60.° above the horizontal
are
(1) 7.5 m/s vertical and 13 m/s horizontal
(2) 13 m/s vertical and 7.5 m/s horizontal
(3) 6.0 m/s vertical and 9.0 m/s horizontal
(4) 9.0 m/s vertical and 6.0 m/s horizontal

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4.

4 What is the time required for an object starting
from rest to fall freely 500. meters near Earth’s
surface?
(1) 51.0 s (3) 10.1 s
(2) 25.5 s (4) 7.14 s

Half-n-half Clue
5.

5 A baseball bat exerts a force of magnitude F on a
ball. If the mass of the bat is three times the mass
of the ball, the magnitude of the force of the ball
on the bat is
(1) F (3) 3F
(2) 2F (4) F/3

Half-n-half Clue
6.

6 A 2.0-kilogram mass is located 3.0 meters above
the surface of Earth. What is the magnitude of
Earth’s gravitational field strength at this
location?
(1) 4.9 N/kg (3) 9.8 N/kg
(2) 2.0 N/kg (4) 20. N/kg

Half-n-half Clue
7.

7 A truck, initially traveling at a speed of 22 meters
per second, increases speed at a constant rate of
2.4 meters per second^{2} for 3.2 seconds. What is
the total distance traveled by the truck during
this 3.2-second time interval?
(1) 12 m (3) 70. m
(2) 58 m (4) 83 m

Half-n-half Clue
8.

8 A 750-newton person stands in an elevator that is
accelerating downward. The upward force of the
elevator floor on the person must be
(1) equal to 0 N (3) equal to 750 N
(2) less than 750 N (4) greater than 750 N

Half-n-half Clue
9.

9 A 3.0-kilogram object is acted upon by an
impulse having a magnitude of
15 newton•seconds. What is the magnitude of
the object’s change in momentum due to this
impulse?
(1) 5.0 kg•m/s (3) 3.0 kg•m/s
(2) 15 kg•m/s (4) 45 kg•m/s

Half-n-half Clue
10.

10 An air bag is used to safely decrease the
momentum of a driver in a car accident. The air
bag reduces the magnitude of the force acting on
the driver by
(1) increasing the length of time the force acts
on the driver
(2) decreasing the distance over which the force
acts on the driver
(3) increasing the rate of acceleration of the
driver
(4) decreasing the mass of the driver

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11.

11 An electron moving at constant speed produces
(1) a magnetic field, only
(2) an electric field, only
(3) both a magnetic and an electric field
(4) neither a magnetic nor an electric field

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12.

12 A beam of electrons passes through an electric
field where the magnitude of the electric field
strength is 3.00 × 10^{3} newtons per coulomb.
What is the magnitude of the electrostatic force
exerted by the electric field on each electron in
the beam?
(1) 5.33 × 10^{−23} N (3) 3.00 × 10^{3} N
(2) 4.80 × 10^{−16} N (4) 1.88 × 10^{22} N

Half-n-half Clue
13.

13 How much work is required to move
3.0 coulombs of electric charge a distance of
0.010 meter through a potential difference of
9.0 volts?
(1) 2.7 × 10^{3} J (3) 3.0 J
(2) 27 J (4) 3.0 × 10^{−2} J

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14.

14 What is the resistance of a 20.0-meter-long
tungsten rod with a cross-sectional area of
1.00 × 10^{−4} meter^{2} at 20°C?
(1) 2.80 × 10^{−5} Ω (3) 89.3 Ω
(2) 1.12 × 10^{−2} Ω (4) 112 Ω

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15.

15 Two pieces of flint rock produce a visible spark
when they are struck together. During this
process, mechanical energy is converted into
(1) nuclear energy and electromagnetic energy
(2) internal energy and nuclear energy
(3) electromagnetic energy and internal energy
(4) elastic potential energy and nuclear energy

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16.

16 A 15-kilogram cart is at rest on a horizontal
surface. A 5-kilogram box is placed in the cart.
Compared to the mass and inertia of the cart, the
cart-box system has
(1) more mass and more inertia
(2) more mass and the same inertia
(3) the same mass and more inertia
(4) less mass and more inertia

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17.

17 Transverse waves are to radio waves as
longitudinal waves are to
(1) light waves (3) ultraviolet waves
(2) microwaves (4) sound waves

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18.

18 As a monochromatic light ray passes from air
into water, two characteristics of the ray that will
not change are
(1) wavelength and period
(2) frequency and period
(3) wavelength and speed
(4) frequency and speed

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19.

19 When a mass is placed on a spring with a spring
constant of 60.0 newtons per meter, the spring is
compressed 0.500 meter. How much energy is
stored in the spring?
(1) 60.0 J (3) 15.0 J
(2) 30.0 J (4) 7.50 J

Half-n-half Clue
20.

20 A boy pushes his sister on a swing. What is the
frequency of oscillation of his sister on the swing
if the boy counts 90. complete swings in 300.
seconds?
(1) 0.30 Hz (3) 1.5 Hz
(2) 2.0 Hz (4) 18 Hz

Half-n-half Clue
21.

21 What is the period of a sound wave having a
frequency of 340. hertz?
(1) 3.40 × 10^{2} s (3) 9.73 × 10^{−1} s
(2) 1.02 × 10^{0} s (4) 2.94 × 10^{−3} s

Half-n-half Clue
22.

22 An MP3 player draws a current of 0.120 ampere
from a 3.00-volt battery. What is the total charge
that passes through the player in 900. seconds?
(1) 324 C (3) 5.40 C
(2) 108 C (4) 1.80 C

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23.

23 A beam of light has a wavelength of 4.5 × 10^{−7}
meter in a vacuum. The frequency of this light is
(1) 1.5 × 10^{−15} Hz (3) 1.4 × 10^{2} Hz
(2) 4.5 × 10^{−7} Hz (4) 6.7 × 10^{14} Hz

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24.

24 When x-ray radiation and infrared radiation are
traveling in a vacuum, they have the same
(1) speed (3) wavelength
(2) frequency (4) energy per photon

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25.

25 The diagram below represents two identical
pulses approaching each other in a uniform
medium.
As the pulses meet and are superposed, the
maximum displacement of the medium is
(1) −6 cm (3) 3 cm
(2) 0 cm (4) 6 cm

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26.

26 As a car approaches a pedestrian crossing the
road, the driver blows the horn. Compared to
the sound wave emitted by the horn, the sound
wave detected by the pedestrian has a
(1) higher frequency and a lower pitch
(2) higher frequency and a higher pitch
(3) lower frequency and a higher pitch
(4) lower frequency and a lower pitch

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27.

27 When air is blown across the top of an open
water bottle, air molecules in the bottle vibrate
at a particular frequency and sound is produced.
This phenomenon is called
(1) diffraction (3) resonance
(2) refraction (4) the Doppler effect

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28.

28 An antibaryon composed of two antiup quarks
and one antidown quark would have a charge of
(1) +1e (3) 0e
(2) −1e (4) −3e

Half-n-half Clue
29.

29 Which force is responsible for producing a stable
nucleus by opposing the electrostatic force of
repulsion between protons?
(1) strong (3) frictional
(2) weak (4) gravitational

Half-n-half Clue
30.

30 What is the total energy released when
9.11 × 10^{−31} kilogram of mass is converted into
energy?
(1) 2.73 × 10^{−22} J (3) 9.11 × 10^{−31} J
(2) 8.20 × 10^{−14} J (4) 1.01 × 10^{−47} J

Half-n-half Clue
31.

31 A shopping cart slows as it moves along a level floor. Which statement describes the energies of the cart?
(1) The kinetic energy increases and the gravitational potential energy remains the same.
(2) The kinetic energy increases and the gravitational potential energy decreases.
(3) The kinetic energy decreases and the gravitational potential energy remains the same.
(4) The kinetic energy decreases and the gravitational potential energy increases.

Half-n-half Clue
32.

32 Two identically-sized metal spheres, A and B, are on insulating stands, as shown in the diagram below.
Sphere A possesses an excess of 6.3 × 10^{10} electrons and sphere B is neutral.
Which diagram best represents the charge distribution on sphere B?

Half-n-half Clue
33.

33 Two points, A and B, are located within the electric field produced by a −3.0 nanocoulomb charge. Point A
is 0.10 meter to the left of the charge and point B is 0.20 meter to the right of the charge, as shown in the
diagram below.
Compared to the magnitude of the electric field strength at point A, the magnitude of the electric field
strength at point B is
(1) half as great (3) one-fourth as great
(2) twice as great (4) four times as great

Half-n-half Clue
34.

34 The diagram below represents two waves, A and B, traveling through the same uniform medium.
Which characteristic is the same for both waves?
(1) amplitude (3) period
(2) frequency (4) wavelength

Half-n-half Clue
35.

35 The diagram below shows a periodic wave.
Which two points on the wave are 180.° out of phase?
(1) A and C (3) F and G
(2) B and E (4) D and H

Half-n-half Clue