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WorksheetsPhysics Spring Review
Total questions: 80
Worksheet time: 1hrs 13mins
About how much work is done to lift a 0.1 kg object by one meter?
10 J
1.0 J
0.1 J
100 J
A box at the top of a rough incline possesses 1000 joules more gravitational potential energy than it does at the bottom. As the box slides to the bottom of the incline, 300 joules of heat is produced. Determine the kinetic energy of the box at the bottom of the incline.
1000 J
1300 J
700 J
Not Enough Information
A horizontal force of 5.0 Newtons acts on a 2.0-kilogram mass over a distance of 3.0 meters along a horizontal, frictionless surface. What is the change in kinetic energy of the mass during its movement over the 3.0-meter distance?
10 J
15 J
30 J
Not Enough Information
If the speed of a moving object is doubled, the kinetic energy of the object is...
halved
doubled
quadrupled
unchanged
What is the maximum amount of work that a 5,000-watt motor can do in 10 seconds?
5,000 J
500 J
50,000 J
Not Enough Information
A 50-kilogram bicyclist coasts down a hill at a constant speed of 10 m/s. What is the kinetic energy of the bicyclist?
2500 J
500 J
5000 J
Not Enough Information
An object is thrown vertically upward. Which pair of graphs best represents the object's kinetic energy and gravitational potential energy as functions of its displacement while it rises?
As a ball falls freely toward the ground, its total mechanical energy [ignore friction].
increases
decreases
remains the same
As a ball falls freely toward the ground, its gravitational potential energy [ignore friction].
increases
decreases
remains the same
Student A lifts a 50.-newton box from the floor to a height of 0.40 meter in 2.0 seconds. Student B lifts a 40.-newton box from the floor to a height of 0.50 meter in 1.0 second. Student B does...
same work, more power.
more work, less power.
same work, less power.
less work, more power.
Where would the speed be the greatest for a rock falling through a tunnel cut through the center of the earth?
as it passes through the center of the Earth.
at 1/3 times the radius of the Earth.
at the Earth's surface.
half way to the center.
Which of the following is not a way to decrease your weight?
decrease your mass
decrease the mass of Earth
decrease your distance from the center of the Earth
increase your distance from the center of the Earth
What would happen to the electrostatic force between two particles if the charge on one of the particles is doubled?
it would be doubled
it would be halved
it would be quartered
it would quadruple
What would happen to the electrostatic force between two particles if the distance between them was halved?
it would be doubled
it would be halved
it would be quartered
it would quadruple
What potential difference is required if you want a current of 0.03 A in a load having
a resistance of 50.0 Ω?
1.5 V
1,667 V
6E-4 V
0,15 V
Which of the circuit diagrams shown below is a series circuit?
I
II
III
I and II
Two identical bulbs are wired in series and then in parallel. In which scenario were the bulbs brighter?
series
parallel
not enough information
they are the same
What is the current in a 1,200-ohm heater operating on 120 volts?
20 amps
0.1 amps
10 amps
5.0 amps
Which of the following is true regarding current and resistance?
As resistance increases, current increases.
As resistance increases, current decreases.
As resistance decreases, current decreases.
Resistance has no effect on current.
What is the voltage drop across each resistor in the circuit below?
8 V
2.67 V
6 V
2 V
In the circuit shown below, what is the potential difference of the source?
10 V
30 V
not enough information
3.3 V
Converts mechanical energy into electrical energy:
generator
motor
transformer
electromagnet
Converts electrical energy into mechanical energy:
generator
motor
transformer
electromagnet
Converts high voltage to low voltage (and vice versa):
generator
motor
transformer
electromagnet
The sound wave produced by a trumpet has a frequency of 450 hertz. What is the distance between successive compressions in this sound wave as it travels through air at 343 m/s?
0.76 m
1.52 m
1.31 m
not enough information
What is the wavelength of a periodic wave having a frequency of 5.0 hertz and a speed of 10.0 meters per second?
2.0 m
0.5 m
50 m
not enough information
If the amplitude of a wave is increased, the frequency of the wave will...
increase
decrease
remain the same
If the wavelength of a wave is increased, the frequency of the wave will...
increase
decrease
remain the same
What is the speed of the wave if its frequency is 6.0 hertz?
1 m/s
12 m/s
36 m/s
not enough information
The distance between which two points identifies the amplitude of the wave?
A and D
D and E
A and C
A and B
The diagram below represents a transverse wave.
Which distance represents wavelength?
A and G
B and F
C and E
D and F
A microwave and an x-ray are traveling in a vacuum. Compared to the wavelength and period of the microwave, the x-ray has a wavelength that is
shorter and the period is longer
shorter and a period that is shorter
longer and a shorter period
longer and a longer period
A microwave and an x-ray are traveling in a vacuum. Compared to the wavelength and period of the microwave, the x-ray has a wave speed that is
the same but the frequency is lower
the same but the frequency is higher
greater because of the higher frequency
lower because of the higher frequency
If an ambulance is approaching you the
speed of the sound increases.
speed of the sound decreases.
pitch sounds greater than the siren actually produces.
pitch sounds lower than the siren actually produces.
If an ambulance is moving away from you the
speed of the sound increases.
speed of the sound decreases.
pitch sounds greater than the siren actually produces.
pitch sounds lower than the siren actually produces.
Increasing the amplitude of a sound wave
increases the wavelength
decreases the wavelength
increases frequency
speeds it up
makes it louder
A student sees a flash of lightning and then hears the thunder 0.5 s later. If the speed of sound in air is 340 m/s, how far away is the lightning?
340 m
170 m
680 m
A police car with its siren blaring is speeding up in hot pursuit of a Chevy Camaro. As it approaches you
The amplitude and frequency both increase.
the amplitude increases and the frequency decreases.
The amplitude and frequency both decrease.
the amplitude decreases and the frequency increases.
If I double the frequency, the period will
double
half
quadruple
quarter
If a wave has a frequency of 10 Hz, what is the period?
10 s
100 s
0.1 s
0.01 s
How does a motor work?
Current generates an electric field around the loop of wire. The electric force causes the loop of wire to rotate.
Current generates a magnetic field in the loop of wire that is then attracted and repelled by the magnet(s) in the motor.
The magnets in the motor attract and repel the metal in the copper wire that makes up the loop. This causes the loop to rotate.
which of the following does NOT belong in the electromagnetic spectrum:
X-ray
sound wave
ultra violet rays
microwaves
Select the correct order of waves on the Electromagnetic Spectrum from lowest frequency to highest.
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
The angle of incidence is _________ the angle of reflection
&
One Vertical Polarized
Which of the following changes occur?
Energy of electrons: increase.
Energy of electrons: no change.
Energy of electrons: increase.
Energy of electrons: no change.
146C --> 0-1e + ________
In the symbol 167N what the 7 stand for?
Mass number
Atomic number
Atomic mass
Number of neutrons
94Be + 11H → _____ + 42He
How many joules of potential energy does a 5.2kg book gain when it is elevated 4m?
204 J
52J
9.81 J
48.99 J
