1. Which measurement of an average classroom
door is closest to 1 meter?
(1) thickness (2) width (3) height (4) surface area
2. Which quantity and unit are correctly paired?
(1) velocity — m/s2 (2) momentum-kg m/s2 (3) energy—kg m2/s2 (4) work —kg/m
3. Which combination of fundamental units can be used to express the weight of an
(1) kilogram/second (2) kilogramxmeter (3) kilogramxmeter/second (4) kilogramxmeter/second2
4. Which object weighs approximately 1 newton?
(1) dime (3) physics student
(2) paper clip (4) golf ball
5. Which terms represent a vector quantity and its respective unit?
(1) weight — kilogram (2) mass — kilogram
(3) force — newton (4) momentum — newton
6. The maximum time allowed for the completion
of this examination is approximately
(1) 102 s (2) 103 s (3) 104 s (4) 105 s
7. Which is a derived unit?
1 meter 2 second 3 kilogram 4 newton
8. The mass of a physics textbook is closest to
(1) 103 kg (3) 100 kg
(2) I01 kg (4) 10-2 kg
9. What is the approximate diameter of a dinner
(1) 0.0025 m (2) 0.025 m (3) 0.25 m (4) 2.5 m
10. A mass of one kilogram of nickels has a
monetary value in United States dollars of approximately
(1) $1.00 (2) $0.10 (3) $10.00 (4) $1000.00
Kinematics and Motion in a Plane
11. The speed at which the launcher fires tennis balls is constant, but the angle between the launcher and the horizontal can be varied. As the angle is decreased from 45° to 30.°, the range of the tennis balls
1) decreases 2) increases 3) remains the same
12. A communications satellite in geosynchronous orbit around Earth remains over
location on Earth. The satellite's period of revolution about Earth is closest
(1) 1 hour (2) 1 day (3) 1 month (4) 1 year
13. Which two terms represent a vector quantity and
the scalar quantity of the vector’s magnitude,
(1) acceleration and velocity (2) weight and force (3) speed and time (4) displacement and distance
14. What is the period of orbit of a communications satellite in geosynchronous orbit about Earth?
(1) 1 year (2) 24 hours (3) 12 hours (4) 60 minutes
15. A red ball and a green ball are simultaneously
thrown horizontally from the same height. The red ball has an initial speed of
40. meters per second and the green ball has an initial speed of 20. meters per
second. Compared to the time it takes the red ball to reach the ground, the time
it takes the green ball to reach the ground will be
(1) the same (3) half as much
(2) twice as much (4) four times as much
16. A baseball player throws a ball horizontally.
Which statement best describes the ball’s motion after it is thrown? [Neglect
the effect of friction.]
(1) Its vertical speed remains the same, and its horizontal speed increases.
(2) Its vertical speed remains the same, and its horizontal speed remains the same.
(3) Its vertical speed increases, and its horizontal speed increases.
(4) Its vertical speed increases, and its horizontal speed remains the same.
17. The Moon’s orbit is not classified as
(1) the Moon’s position over Earth’s surface varies with time
(2) the Moon’s mass is very large compared to the mass of all other Earth satellites
(3) the Moon is a natural satellite, rather than an artificial one
(4) the Moon always has the same half of its surface facing Earth
18. A softball player leaves the batter’s box, overruns first base by 3.0 meters, and then returns to first base. Compared to the total distance traveled by the player, the magnitude of the player’s total displacement from the batter’s box is
(1) smaller (2) larger (3) the same
19. Which terms both represent scalar quantities?
(1) displacement and velocity (2) distance and speed (3) displacement and speed (4) distance and velocity
20. The path of a projectile fired at a 30° angle
horizontal is best described as
1 parabolic 3 circular
2 linear 4 hyperbolic
21. A satellite is in geosynchronous orbit. Compared to Earth’s period of rotation, the satellite’s period
of revolution is
1 less 2 greater 3 the same
Dynamics & Gravity & Momentum
mosquito flying over a highway strikes the
windshield of a moving truck. Compared to the
magnitude of the force of the truck on the mosquito
during the collision, the magnitude of the
force of the mosquito on the truck is
(1) smaller (2) larger (3) the same
23. Compared to 8 kilograms of feathers, 6 kilograms of lead has
(1) less mass and less inertia (2) less mass and more inertia
(3) more mass and less inertia (4) more mass and more inertia
24. The gravitational force of attraction between two objects would be increased by
(1) doubling the mass of both objects, only
(2) doubling the distance between the objects, only
(3) doubling the mass of both objects and doubling the distance between the objects
(4) doubling the mass of one object and doubling the distance between the objects
25. If the speed of a moving object is doubled,
which quantity associated with the object must also double?
(1) its momentum (2) its kinetic energy
(3) its acceleration (4) its gravitational potential energy
26. The radius of Mars is approximately one-half the
radius of Earth, and the mass of Mars is approximately
one-tenth the mass of Earth. Compared to the acceleration due to gravity on the
of Earth, the acceleration due to gravity on the
surface of Mars is
(1) smaller (2) larger (3) the same
27. When a satellite is a distance R from the
of Earth, the force due to gravity on the satellite
is F. What is the force due to gravity on the satellite
when its distance from the center of Earth is
(1) F/9 (2) F/3 (3) F (4) 9F
28. What is an essential characteristic of an
(1) zero velocity (2) zero acceleration (3) zero potential energy (4) zero kinetic energy
29. Two cars having different weights are traveling
on a level surface at different constant velocities.
Within the same time interval, greater force will
always be required to stop the car that has the greater
1 weight 2 kinetic 3 velocity energy 4 momentum
30. Which action would require no work to be done
on an object?
(1) lifting the object from the floor to the ceiling
(2) pushing the object along a horizontal floor against a frictional force
(3) decreasing the speed of the object until it comes to rest
(4) holding the object stationary above the ground
31. A girl rides an escalator that moves her upward
at constant speed. As the girl rises, how do her gravitational potential energy
and kinetic energy change'?
(1) Gravitational potential energy decreases and kinetic energy decreases.
(2) Gravitational potential energy decreases and kinetic energy remains the same.
(3) Gravitational potential energy increases and kinetic energy decreases.
(4) Gravitational potential energy increases and kinetic energy remains the same.
32. Compared to the charge on a proton, the charge
on an electron has the
(1) opposite sign and a smaller magnitude (2) opposite sign and the same magnitude
(3) same sign and a smaller magnitude (4) same sign and the same magnitude
33. A cylinder fitted with a piston contains a
fixed mass of an ideal gas. Heat is added to the gas, causing it to expand and
raise the piston. If all the added heat is converted to work done in raising the
piston, the internal energy of the gas will
(1) decrease (2) increase (3) remain the same
34. A magnetic force acts on a charged particle
moving at a constant speed perpendicular to a uniform magnetic field. The
magnitude of the magnetic force on the particle will increase if the
(1) flux density of the magnetic field increases
(2) time of travel of the charge increases
(3) magnitude of the charge decreases
(4) speed of the charge decreases
35. Conductivity in metallic solids is due to the presence of free
(1) nuclei (2) protons(3) neutrons (4) electrons
36. An electrostatic force of magnitude F exists
between two metal spheres having identical
charge q. The distance between their centers is r. Which combination of changes
would produce no change in the electrostatic force between the
(1) doubling q on one sphere while doubling r
(2) doubling q on both spheres while doubling r
(3) doubling q on one sphere while halving r
(4) doubling q on both spheres while halving r
37. Compared to insulators, metals are better
of electricity because metals contain more free
(1) protons (3) positive ions
(2) electrons(4) negative ions
38. Electrostatic force F exists between two point
charges. If the distance between the charges is
tripled, the force between the charges will be
(1) F/9 (2) F/3 (3) 3F (4) 9F
39. A metal wire has length L and cross-sectional
area A. The resistance of the wire is directly proportional
40. A glass rod becomes positively charged when it
is rubbed with silk. This net positive charge accumulates because the glass rod
1 gains electrons 2 gains protons3 loses electrons 4 loses protons
41. A wire conductor is moved at constant speed perpendicularly to a uniform magnetic field. If the strength of the magnetic field is increased, the induced potential across the ends of the conductor
1 decreases 2 increases 3 remains the same
42. What occurs when light passes from water into
(1) Its speed decreases, its wavelength becomes shorter, and its frequency remains the same.
(2) Its speed decreases, its wavelength becomes shorter, and its frequency increases.
(3) Its speed increases, its wavelength becomes longer, and its frequency remains the same.
(4) Its speed increases, its wavelength becomes longer, and its frequency decreases.
43 The diagram below shows straight wave fronts
passing through an opening in a barrier.
44. Two points on a transverse wave that have the same magnitude of displacement from equilibrium
are in phase if the points also have the
(1) same direction of displacement and the same direction of motion
(2) same direction of displacement and the opposite direction of motion
(3) opposite direction of displacement and the same direction of motion
(4) opposite direction of displacement and the opposite direction of motion
The diagram below shows a ray of light passing from medium X into air.
45. An opera singer’s voice is able to break a thin crystal glass when the singer’s voice and the vibrating glass have the same
(1) frequency (2) speed (3) amplitude (4) wavelength
46. Which phenomenon can not be exhibited by
(1) reflection (3) diffraction
(2) refraction (4) polarization
47. As a monochromatic beam of light passes
obliquely from flint glass into water, how do the characteristics of the beam of
(1) Its wavelength decreases and its frequency decreases.
(2) Its wavelength decreases and its frequency increases.
(3) Its wavelength increases and it bends toward the normal.
(4) Its wavelength increases and it bends away from the normal.
48. Which phrase best describes a periodic wave?
(1) a single pulse traveling at constant speed
(2) a series of pulses at irregular intervals
(3) a series of pulses at regular intervals
(4) a single pulse traveling at different speeds in the same medium
49. The hertz is a unit that describes the number of
(1) seconds it takes to complete one cycle of a
(2) cycles of a wave completed in one second
(3) points that are in phase along one meter of a wave
(4) points that are out of phase along one meter of a wave
50. As a sound wave travels through air, there is a
net transfer of
(1) energy, only (2) mass, only (3) both mass and energy (4) neither mass nor energy
51. A nearby object may vibrate strongly when a
specific frequency of sound is emitted from a loudspeaker. This phenomenon is
(1) resonance (2) the Doppler effect(3) reflection (4) interference
52. Two identical guitar strings are tuned to the
same pitch. If one string is plucked, the other nearby string vibrates with the
same frequency. This phenomenon is called
(1) resonance (2) reflection (3) refraction (4) destructive interference
53. When a student looks into a plane mirror, she
sees a virtual image of herself. However,
when she looks into a sheet of paper, no such image forms. Which light
at the surface of the paper?
(1) regular reflection (2) diffuse reflection(3) polarization (4) resonance
54. Light from the star Betelgeuse displays a
Doppler red shift. This shift is best explained by assuming that Betelgeuse is
(1) decreasing in temperature (2) increasing in temperature (3) moving toward Earth (4) moving away from Earth
55. A monochromatic beam of light has a frequency of 6.5 X 1014 hertz. What color is the light?
(1) yellow (2) orange(3) violet (4) blue
56. Two waves having the same amplitude and the same frequency pass simultaneously through a uniform medium. Maximum destructive interference occurs when the phase difference between the two waves is
(1) 0° (2) 90° (3) 180° (4) 360°
57. What occurs as a ray of light
passes from air into water?
(1) The ray must decrease in
(2) The ray must increase in speed.
(3) The ray must decrease in frequency. (4) The ray must increase in frequency.
58. In which part of the electromagnetic spectrum does a photon have the greatest energy?
(1) red (2) infrared (3) violet (4) ultraviolet
59. If all parts of a light beam have a constant phase relationship, with the same wavelength and frequency, the light beam is
(1) monochromatic and coherent
(2) monochromatic and incoherent
(3) polychromatic and coherent
(4) polychromatic and incoherent
A light spring is attached to a heavier spring at
one end. A pulse traveling along the light spring
is incident on the boundary with the heavier
spring. At this boundary, the pulse will be
1 totally reflected
2 totally absorbed
3 totally transmitted into the heavier spring
4 partially reflected and partially transmitted
into the heavier spring
As a wave travels through a medium, the particles of the medium vibrate in the direction of the wave’s travel. What type of wave is traveling through the medium?
1 longitudinal 3 transverse
2 torsional 4 hyperbolic
The driver of a car blows the horn as the car approaches a crosswalk. Compared to the actual pitch of the horn, the pitch observed by a pedestrian in the crosswalk is
1 lower 2 higher 3 the same
Compared to wavelengths of visible light, the wavelengths of ultraviolet light are
3 the same
As a pulse travels along a rope, the pulse
energy and its amplitude
3 remains the same
Two waves traveling in the same medium
interfere to produce a standing wave. What is the phase difference between the
two waves at a
(1) 0° (3) 180°
(2) 90° (4) 360°
Experiments performed with light indicate that
1 particle properties, only
2 wave properties, only
3 both particle and wave properties
4 neither particle nor wave properties
An atomic nucleus emits energy as it decays
from an excited state to a more stable state without a change in its atomic
number. This energy is emitted in the form of
1 an alpha particle 3 a gamma ray
2 an electron 4 a beta particle
The nuclear force that holds nucleons together is
1 weak and short range
2 weak and long range
3 strong and short range
4 strong and long range
In the currently accepted model of the atom, a
fuzzy cloud around a hydrogen nucleus is used to
(1) electron’s actual path, which is not a circular orbit
(2) general region where the atom’s proton is most probably located
(3) general region where the atom’s electron is most probably located
(4) presence of water vapor in the atom
Alpha particles were directed at a thin metal
foil. Some particles were deflected into hyperbolic paths due to
(1) gravitational attraction
(2) electrostatic repulsion
(3) electrostatic attraction
(4) magnetic repulsion
The momentum of a photon is inversely proportional to the photon’s
(1) frequency (2) mass (3) weight (4) wavelength
Protons and neutrons are composed of smaller
(1) quarks (3) alpha particles
(2) baryons (4) bosons
One atomic mass unit is defined as
(1) the mass of an electron
(2) the mass of an alpha particle
(3) the mass of an atom of carbon-12
(4) the mass of an atom of carbon-12
What occurs when an atom emits gamma radiation?
(1) The excited nucleus changes to a more stable state by absorbing a photon.
(2) The excited nucleus changes to a more stable state by emitting a photon.
(3) The stable nucleus changes to an excited state by emitting a photon.
(4) The stable nucleus changes to an excited state by absorbing a photon.
Sand is often placed on an icy road because the sand
(1) decreases the coefficient of friction between the tires of a
car and the road
(2) increases the coefficient of friction between the tires of a car and the road
(3) decreases the gravitational force on a car
(4) increases the normal force of a car on the road
A fusion reactor for commercial production of energy has not yet been developed. The best explanation for this situation is that fusion reactions
(1) occur at extremely low temperatures
(2) form highly radioactive products
(3) require very high energies
(4) need fuels unavailable on Earth
As the nucleus of an unstable atom emits only gamma radiation, the nucleus must
(1) gain energy (3) lose protons
(2) lose energy (4) gain protons
Which statement best describes what occurs when the control rods are inserted into a nuclear reactor?
(1) The number of fission
because the control rods absorb neutrons.
(2) The number of fission reactions decreases because the control rods absorb electrons.
(3) The number of fission reactions increases because the control rods release neutrons.
(4) The number of fission reactions increases because the control rods release electrons.
In an experiment, Ernest Rutherford observed
that some of the alpha particles directed at a thin gold foil were scattered at
large angles. This scattering occurred because the
(1) negatively charged alpha particles were attracted to the gold’s positive atomic nuclei
(2) negatively charged alpha particles were repelled by the gold’s negative atomic nuclei
(3) positively charged alpha particles were attracted to the gold’s negative atomic nuclei
(4) positively charged alpha particles were repelled by the gold’s positive atomic nuclei
During a collision between a photon and an
electron, there is conservation of
(1) energy, only (2) momentum, only
(3) both energy and momentum (4) neither energy nor momentum
Compared to the gravitational force between two nucleons in an atom of helium, the nuclear force between the nucleons is
(1) weaker and has a shorter range (2) weaker and has a longer range
(3) stronger and has a shorter range (4) stronger and has a longer range
The subatomic particles that make up protons
(1) hyperons (3) positrons
(2) baryons: (4) quarks