Longitudinal waves
What is the difference between compression and rarefaction between a loud sound and a soft sound?
What is the difference in compression and rarefaction between a loud sound and a soft sound. … It is
a volume of sound
. The compressions are closer together when its loud. The rarefaction particles are further apart when the sound is soft.
What is the difference between refraction and compression?
9.2 Compression and rarefaction (ESACT)
A compression is a region in a longitudinal wave where the particles are closest together. A rarefaction is a region in a longitudinal wave where the particles are furthest apart.
What is the distance between rarefaction and compression?
The distance between two successive compression and distance between a compression and the adjoining rarefaction is called
wavelength
.
What causes rarefaction and compression?
Compressions and Rarefactions
Because
of the longitudinal motion of the air particles
, there are regions in the air where the air particles are compressed together and other regions where the air particles are spread apart. These regions are known as compressions and rarefactions respectively.
What is the frequency of a wave with a period of 0.2 seconds?
So, the frequency of the wave is
5 Hz
.
What is an example of compression?
The definition of compression is the action or state of being squished down or made smaller or more pressed together. …
When a pile of material is squished together and made smaller and more dense
, this is an example of compression.
What can sound Cannot travel through?
Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through
empty space
, where there are no atoms or molecules to vibrate.
What do you call the frequency of a vibrating object?
A vibrating object moves back and forth from its normal stationary position. … The number of cycles that a vibrating object completes in one second is called frequency. The unit of frequency is
hertz (Hz)
. One hertz equals one cycle per second.
What makes sound loud or soft?
Volume is how loud or
soft
a sound is. The volume depends on the amount of energy in a sound wave. If you hit a table hard it will make a louder sound then if you hit is soft. A human can hear 120 decibels but it is very painful.
What is the distance between two compressions called?
The distance between two consecutive compressions or rarefactions in a wave is called
the wavelength
.
What is the distance between two wavefronts called?
Wavelength
can be defined as “the distance between two adjacent points in a wave that move in phase (or in step)”.
What is an example of rarefaction?
An example of rarefaction is also as
a phase in a sound wave or phonon
. Half of a sound wave is made up of the compression of the medium, and the other half is the decompression or rarefaction of the medium.
What is the period wave?
Wave Period:
The time it takes for two successive crests (one wavelength) to pass a specified point
. The wave period is often referenced in seconds, e.g. one wave every 6 seconds.
Why is sound a wave?
Sound energy, or energy associated with the
vibrations created by a vibrating source
, requires a medium to travel, which makes sound energy a mechanical wave. Pressure Sound Waves – Because sound waves consist of compressions and rarefactions, their regions fluctuate between low and high-pressure patterns.
What is the frequency of the wave?
The frequency, represented by the Greek letter nu (ν), is
the number of waves that pass a certain point in a specified amount of time
. Typically, frequency is measured in units of cycles per second or waves per second. One wave per second is also called a Hertz (Hz) and in SI units is a reciprocal second (s
− 1
).
