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WorksheetsUnit 13 Review
Total questions: 79
Worksheet time: 59mins
The speed of sound in air is 340 m/s. The frequency of the sound waves generated by my voice is 720 Hz. Calculate the wavelength of sound of my voice.
380 m
0.472 m
2.11 m
244,800
none of these are correct
A sound wave has a wavelength of 200 m and a frequency of 6 Hz. What is its speed?
1200 m/s
12,280 m/s
0.0031 m/s
1993.8 m/s
Which wave has the highest frequency?
A
B
C
None (same frequency)
none of these are correct
Waves that have vibrations that move perpendicular to the direction the wave are called:
Electromagnetic Spectrum
Transverse Waves
Medium
Light Waves
What is "Beats"?
The regular pulsing of pitch of a sound which is heard when 2 sources produce sounds of slightly different frequency.
The regular pulsing of loudness of a sound which is heard when 2 sources produce sounds of slightly different frequency.
The regular pulsing of a sound giving a characteristic tone / timbre which is heard when 2 sources produce sounds of slightly different frequency.
The regular pulsing of loudness of a sound which is heard when 2 sources produce sounds of the same frequency.
Calculate the beat frequency if a 400 Hz and a 397 Hz sound are heard by Quinn.
1 Hz
2 Hz
3 Hz
4 Hz
If someone is standing to the left of this wave, they would hear a ______ pitch than someone standing to the right of it.
uglier
prettier
higher
lower
If you are standing in front of this car, the wavelengths nearest you would have a _______ frequency
quieter
louder
higher
lower
Which BEST describes this sound?
Starts low pitch and quiet and gets higher pitch and loud
Starts high pitch and quiet and get lower pitch and loud
Starts low pitch and loud and gets higher pitch and quiet
Starts low pitch and quiet and gets higher pitch
Of the 4 waves, which is low pitch and quiet?
red
yellow
green
blue
The speed of sound depends on these two things:
The type of medium and the temperature of the medium
Speed of the medium and temperature of the medium
Temperature of the medium and sound of the medium
None of the above
Sound waves that are beyond the range of human ear are known as ----
Infrasonic waves
Ultrasonic waves
Sound is made when a source of energy forces the matter to
Vibrate
Move
Stay still
Sound waves CANNOT travel through which of these:
Paper
Milk
Outer space
The amount of energy a sound wave carries per second through a unit of area is its
Pitch
Intensity
Loudness
The _______ of a wave increases with increased energy.
Wave length
Amplitude
Loudness of waves is measured in
Hertz
Decibels
Watts
Frequency of waves is measured in
Hertz
Decibels
Watts
High frequency sounds have _______ pitch
HIgh
Low
Hearing above 20000 Hz is considered
infrasonic
supersonic
ultrasonic
sonic the hedgehog
Which row correctly describes light waves?
A
B
C
D
Which of the following has the longest wavelength?
microwaves
UV rays
Infrared
Gamma rays
Which of the following has the most energy?
Red
Blue
Green
Yellow
Which of the following has the most energy?
X-rays
The color green
Microwaves
Infrared
Which of the following has the shortest wavelength?
Infrared
The color Indigo
Infrared
TV
Which of the following has the least amount of energy?
UV rays
The color yellow
Radio waves
Gamma rays
Which of the following would have the highest frequency?
Gamma rays
The color red
X-rays
UV rays
What are the parts of a longitudinal wave? Select Two from the choice below
compression
crest
rarefaction
trough
It is the entire range of wavelengths or frequencies of electromagnetic radiation
electromagnetic waves
electromagnetic spectrum
electromagnetic collection
To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its
wavelength.
intensity.
refraction.
amplitude.
An electromagnetic wave in a vacuum has a wavelength of 0.07m. What is its frequency?
f= 3.0x 10^8 m/s
f= 3.0x 10^9Hz
f=4.3x 10^9Hz
f=4.3x 10^8m/s
Light acts like
a wave.
a particle.
Both a wave and a particle
neither a wave nor a particle.
Which of the following occurs as light travels farther from its source?
Far from the source, photons come together in a small area.
The intensity of light increases as photons move away from the source.
The source gives off less light as photons move away from it.
Far from the source, photons spread over a larger area.
How are Electromagnetic waves different from Mechanical waves?
EM waves have very short wavelengths
EM waves transmit energy instead of matter
EM waves can travel through the vacuum of space (without particles)
EM waves can change direction by reflection
Wavelength and Frequency are related in that...
they are always the same
when one increases, the other decreases (inversely proportional)
there is no correlation
they both vary in an irregular pattern
Put the visible light colors in order from SHORTEST wavelength (highest frequency) to longest wavelength (lowest frequency)
Violet, Indigo, Blue, Green, Orange, Yellow, Red
Red, Yellow, Green, Orange, Violet, Blue, Indigo
Red, Orange, Yellow, Green, Blue, Indigo, Violet
All electromagnetic waves are...
transverse waves and have the same frequency
transverse waves and have the same speed
mechanical waves and have the same wavelength
longitudinal waves and have the same energy
