Transverse and longitudinal Flashcards
(23 cards)
Waves transfer energy not matter
the period is inversely proportional to the frequency
How do waves travel?
Through a medium
What do sound waves cause the air particles to do?
they cause the air particles to vibrate back and forth.
What do waves in water cause the water particles to do?
ripples cause the water particles to vibrate up and down
What is different in transverse and longitudinal waves?
The direction of oscillations.
What happens in longitudinal waves
Vibrations are parallel to the direction of wave travel (the oscillations are in the same direction as the direction of the wave)
What do certain areas of longitudinal waves show that transverse waves don’t?
Areas of rarefaction and compression.
What are areas of rarefaction?
they have rarefactions which are areas of low pressure particles spread apart due to the vibrations
What are areas of compression?
the compressions are areas of high pressure where particles are squashed together due to the vibrations
What are examples of longitudinal waves?
. Sound waves
.Ultrasound waves
.Seismic-P waves
How are transverse waves different to longitudinal waves?
Vibrations are at right angles (perpendicular) to the direction of wave travel
What are different features of a transverse waves and the meaning/function?
Peak = highest point
Trough = lowest point
What are some examples of transverse waves?
.ripples on the surface of water
.vibrations in a guitar string
.a Mexican wave in a sports stadium
.electromagnetic waves
.seismic S-waves
Period=?
1/frequency
What id amplitude
the maximum displacement of a point on the wave from its undisturbed position.
Wavelength
the distance from a point on one wave to the equivalent point on the next wave (e.g. crest-to-crest or trough-to-trough).
Frequency
the number of waves passing a point per second.
What is the wave speed?
the speed at which energy is being transferred.
What is the formula for the wavespeed?
v = f λ
wavespeed= frequency x wavelength
What happens to the velocity if the frequency increases?
it increases
What happens to the velocity if the wave length increases?
it increases
If the period is smaller, what can be said about the frequency and velocity?
higher frequency, greater velocity
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