WorksheetsPhysics Waves & Sound
Total questions: 20
Worksheet time: 9mins
How does sound travel?
Sound does not travel.
Sound travels in transverse waves.
Sound travels in longitudinal waves.
Sound travels slow.
As air particles are pushed together, they create a region of higher density and pressure in a longitudinal wave. These areas are called:
Trough
Compression
Rarefaction
Frequency
As air particles become less crowded a region of lower density and pressure is created. This part of a longitudinal wave is called a:
Crest
Compression
Rarefaction
Frequency
The distance between two consecutive regions of high concentration of air particles (high density and pressure) is the _________ of a sound wave.
Amplitude
Frequency
Speed
Wavelength
A sound wave has a frequency of 20 kHz and travels at a speed of 340 m/s. Calculate the wavelength of this wave.
0.017 m
17 m
~ 59 m
~ 0.059 m
The speed of sound through pure water at 0 °C is 1,400 m/s. A sound wave travelling through this medium has a wavelength of 3.18 m. Calculate the frequency of the wave.
~ 0.0023 Hz
4,452 Hz
~ 440 Hz
220 Hz
A sound wave travels through concrete. The frequency of the wave is 1.25 kHz and its wavelength is 4 m. Calculate the speed of sound through concrete.
312.5 m/s
~ 0.3 m/s
5 m/s
5,000 m/s
What is the pitch of a sound wave?
How loud or soft sound is.
How high or low sound is.
A material that sound travels through.
Back and forth movement of the air particles.
What is the volume of a sound wave?
How loud or soft sound is.
How high or low sound is.
A material that sound travels through.
Back and forth movement of the air particles.
Sound travels fastest through _______ .
solids
liquids
gases
The speed of sound is the same through all media.
Sound travels slowest through ______ .
solids
liquids
gases
The speed of sound is the same through all media.
The toughest a medium is, the slower will sound travel through it.
True.
False.
Why can't we hear sound in space?
The helmet blocks the sound and you can't take it off to hear it.
Sound travels so slow in vacuum, that it never gets to your ears.
Sound needs a material to travel through, so it can't travel through vacuum.
Don't know, I've never been to space.
Why do we hear echos?
Sound waves get reflected off a surface and travel back to us.
There is a second sound source emitting sound back at us.
Sound waves get refracted and bend back to us.
Sound waves travel really fast!
Why do we see lightning before thunder?
Lightning happens before thunder.
The speed of light is greater than the speed of sound.
Our eyes trick us.
Which property of a sound wave affects its pitch?
Speed
Amplitude
Wavelength
Frequency
Which property of a sound wave affects its volume?
Speed
Amplitude
Wavelength
Frequency
All these waves represent sound waves. Which one represents the sound with the highest pitch?
Red
Orange
Green
Blue
Purple
Which part of the ear acts as a funnel for sound waves?
Inner ear
Outer ear
Ear canal
Middle ear
This part of the ear is vibrated by sound waves. It is a lightly stretched membrane that is the entrance to the middle ear.
Cochlea
Ear drum
Inner ear
ear canal
