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WorksheetsRegents Physics Practice Test
Total questions: 50
Worksheet time: 25mins
Which pair of quantities represent scalar quantities?
displacement and velocity
displacement and time
energy and velocity
energy and time
A sailboat on a lake sails 40. meters north and then sails 40. meters due east. Compared to its starting position, the new position of the sailboat is
40. m due east
40. m due north
57 m northeast
80. m northeast
A ball is thrown straight upward from the surface of Earth. Which statement best describes the ball’s velocity and acceleration at the top of its flight?
Both velocity and acceleration are zero
Velocity is zero and acceleration is nonzero.
Velocity is nonzero and acceleration is zero.
Both velocity and acceleration are not zero.
As a student runs a plastic comb through her hair, the comb acquires a negative electric charge. This charge results from the transfer of
protons from the comb to her hair
protons from her hair to the comb
electrons from the comb to her hair
electrons from her hair to the comb
How would the mass and weight of an object on the Moon compare to the mass and weight of the same object on Earth?
Mass and weight would both be less on the Moon.
Mass would be the same but its weight would be less on the Moon.
Mass would be less on the Moon and its weight would be the same
Mass and weight would both be the same on the Moon.
An object is moving with constant speed in a circular path. The object’s centripetal acceleration remains constant in
magnitude, only
direction, only
both magnitude and direction
neither magnitude nor direction
As shown in the diagram below, a rope attached to a 500.-kilogram crate is used to exert a force of 45 newtons at an angle of 65 degrees above the horizontal. The horizontal component of the force acting on the crate is
19N
41N
210N
450N
A spring with a spring constant of 68 newtons per meter hangs from a ceiling. When a 12-newton downward force is applied to the free end of the spring, the spring stretches a total distance of
0.18 m
0.59 m
5.7 m
820 m
As a student walks downhill at constant speed, his gravitational potential energy
increases and his kinetic energy increases
increases and his kinetic energy remains the same
decreases and his kinetic energy increases
decreases and his kinetic energy remains the same
When 150 joules of work is done on a system by an external force of 15 newtons in 20. seconds, the total energy of that system increases by
1.5 × 10^2 J
2.0 x 10^2 J
3.0 x 10^3 J
2.3 x 10^3 J
A person on a ledge throws a ball vertically downward, striking the ground below the ledge with 200 joules of kinetic energy. The person then throws an identical ball vertically upward at the same initial speed from the same point. What is the kinetic energy of the second ball when it hits the ground? [Neglect friction.]
200 J
400 J
less than 200 J
more than 400 J
Two construction cranes are used to lift identical 1200-kilogram loads of bricks the same vertical distance. The first crane lifts the bricks in 20. seconds and the second crane lifts the bricks in 40. seconds. Compared to the power developed by the first crane, the power developed by the second crane is
the same
twice as great
half as great
four times as great
An ionized calcium atom has a charge of +2 elementary charges. If this ion is accelerated through a potential difference of 2.0 × 10^3 volts, the ion’s change in kinetic energy will be
1 x 10^3 ev
2 x 10^3 ev
3 x 10^3 ev
4 x 10^3 ev
A total charge of 100. coulombs flows past a fixed point in a circuit every 500. seconds. What is the current at this point in the circuit?
0.2 A
5 A
5 x 10^4 A
1.25 x 10^18 A
An aluminum wire of length 1.0 meter has a resistance of 9.0 × 10^–3 ohm. If the wire were cut into two equal lengths, each length would have a resistance of
2.8 × 10^-8 Ω
4.5 × 10^-3 Ω
9.0 × 10^-3 Ω
1.8 x 10^-2 Ω
In an operating electrical circuit, the source of potential difference could be
a voltmeter
a battery
an ammeter
a resistor
A lightbulb with a resistance of 2.9 ohms is operated using a 1.5-volt battery. At what rate is electrical energy transformed in the lightbulb?
0.52 W
0.78 W
4.4 W
6.5 W
A 40.0-kilogram child exerts a 100.-newton force on a 50.0-kilogram object. The magnitude of the force that the object exerts on the child is
0 N
80 N
100 N
125 N
Two identical stationary bar magnets are arranged as shown in the diagram below. What is the direction of the magnetic field at point P?
A student claps his hands once to produce a sudden loud sound that travels through the air. This sound is classified as a
longitudinal mechanical wave
longitudinal electromagnetic wave
transverse mechanical wave
transverse electromagnetic wave
A student generates water waves in a pool of water. In order to increase the energy carried by the waves, the student should generate waves with a
greater amplitude
lower frequency
greater wavelength
longer period
A wave generator produces straight, parallel wave fronts in a shallow tank of uniform-depth water. As the frequency of vibration of the generator increases, which characteristic of the wave will always decrease?
amplitude
phase
wavelength
speed
A space probe produces a radio signal pulse. If the pulse reaches Earth 12.3 seconds after it is emitted by the probe, what is the distance from the probe to Earth?
3.71 × 10^2 m
4.07 × 10^3 m
4.10 × 10^8 m
3.69 × 10^9 m
The diagram below represents a light ray reflecting from a plane mirror. The angle of reflection for this light ray is
20 degrees
70 degrees
140 degrees
160 degrees
A light wave travels from one medium into a second medium with a greater absolute index of refraction. Which characteristic of the wave can not change as the wave enters the second medium?
frequency
speed
direction
wavelength
The speed of light ( f = 5.09 × 10^14 Hz) in glycerol is
1.70 × 10^6 m/s
2.04 × 10^8 m/s
3.00 × 10^8 m/s
4.41 × 10^8 m/s
The diagram below represents a standing wave produced in a string by a vibrating wave generator. How many antinodes are shown in this standing wave?
6
2
3
4
The Doppler effect is best described as the
bending of waves as they pass by obstacles or through openings
change in speed of a wave as the wave moves from one medium to another
creation of a standing wave from two waves traveling in opposite directions in the same medium
shift in the observed frequency and wavelength of a wave caused by the relative motion between the wave’s source and an observer
Which diagram represents diffraction of wave fronts as they encounter an obstacle?
Which types of forces exist between the two protons in a helium nucleus?
a repulsive electrostatic force and a repulsive gravitational force
a repulsive electrostatic force and an attractive strong nuclear force
an attractive electrostatic force and an attractive gravitational force
an attractive electrostatic force and an attractive strong nuclear force
A meson could be composed of
a top quark and a bottom quark
an electron and an antielectron
a strange quark and an anticharm quark
an up quark and a muon
An electron in an excited mercury atom is in energy level g. What is the minimum energy required to ionize this atom?
0.20 eV
0.91 eV
2.48 eV
7.90 eV
A student is standing in an elevator that travels from the first floor to the tenth floor of a building. The student exerts the greatest force on the floor of the elevator when the elevator is
accelerating upward as it leaves the first floor
slowing down as it approaches the tenth floor
moving upward at constant speed
at rest on the first floor
At the bottom of a hill, a car has an initial velocity of +16.0 meters per second. The car is uniformly accelerated at −2.20 meters per second squared for 5.00 seconds as it moves up the hill. How far does the car travel during this 5.00-second interval?
107 m
74.5 m
52.5 m
25 m
A particle enters the electric field between two oppositely charged parallel plates, as represented in the diagram below. Which particle will be deflected toward the positive plate as it enters the electric field?
photon
proton
electron
neutrino
As represented in the diagram below, an object of mass m, located on the surface of the Moon, is attracted to the Moon with a gravitational force, F. An object of mass 2m, at an altitude equal to the Moon’s radius, r, above the surface of the Moon, is attracted to the Moon with a gravitational force of
F
2F
F/2
F/4
The graph below represents the relationship between velocity and time for an object moving along a straight line. What is the magnitude of the object’s acceleration?
5 m/s^2
8 m/s^2
10 m/s^2
20 m/s^2
Two muons would have a combined charge of
−3.2 × 1^-19 C
−1.6 × 10^-19 C
0 C
+3.2 × 10^-19 C
A 1.47-newton baseball is dropped from a height of 10.0 meters and falls through the air to the ground. The kinetic energy of the ball is 12.0 joules the instant before the ball strikes the ground. The maximum amount of mechanical energy converted to internal energy during the fall is
2.7 J
12.0 J
14.7 J
26.7 J
A projectile lands at the same height from which it was launched. Which initial velocity will result in the greatest horizontal displacement of the projectile? [Neglect friction.]
A 5.0-kilogram box is sliding across a level floor. The box is acted upon by a force of 27 newtons east and a frictional force of 17 newtons west. What is the magnitude of the acceleration of the box?
0.5 m/s^2
2 m/s^2
8.8 m/s^2
10 m/s^2
The diagram below represents a 2.0-kilogram toy car moving at a constant speed of 3.0 meters per second counterclockwise in a circular path with a radius of 2.0 meters. At the instant shown in the diagram, the centripetal force acting on the car is
4.5 N north
4.5 N west
9.0 N north
9.0 N west
In which electric circuit would the voltmeter read 10 volts?
The lambda baryon has the quark composition uds. Which particle has the same electric charge as the lambda baryon?
neutron
electron
proton
antimuon
A red photon in the bright-line spectrum of hydrogen gas has an energy of 3.02 × 10−19 joule. What energy-level transition does an electron in a hydrogen atom undergo to produce this photon?
n=3 to n=2
n=4 to n=2
n=5 to n=2
n=6 to n=2
In the diagram below, a negatively charged rod is placed between, but does not touch, identical small metal spheres R and S hanging from insulating threads. What can be concluded if the rod repels sphere R but attracts sphere S?
Sphere R must be negative and sphere S must be positive.
Sphere R must be negative and sphere S may be positive or neutral
Sphere R must be positive and sphere S must be negative.
Sphere R must be positive and sphere S may be negative or neutral.
The amount of electric energy consumed by a 60.0-watt lightbulb for 1.00 minute could lift a 10.0 newton object to a maximum vertical height of
6.0 m
36.7 m
360 m
600 m
Microwaves can have a wavelength closest to the
radius of Earth
height of Mount Everest
length of a football field
length of a physics student’s thumb
Two pulses approach each other in a uniform medium, as represented in the diagram below.
How many kilograms of matter would have to be converted into energy to produce 24.0 megajoules of energy?
2.67 × 10−16 kg
2.67 × 10−10 kg
8.00 × 10−8 kg
8.00 × 10−2 kg
