Waves Flashcards
What is an example of a transverse wave
Water wave
In which type of wave do the particles that make up the wave vibrate at right angles to the direction of travel of the wave?
Transverse
In which type of wave do the particles that make up the wave vibrate in the same direction as the wave travels.
Longitudinal
What is an example of a longitudinal wave?
Sound wave
What do waves carry?
Energy
Define frequency
the number of waves which pass a point in one second
What is the symbol for frequency?
f
What is the unit of measurement for frequency?
Hz
What is the trend/relationship between frequency and pitch?
The higher the frequency the higher the pitch
Define wavelength
the distance between a point on one wave and the same point on the next wave.
How should wavelength be measured?
It can be measured from one point on one wave to the same point on the next wave but should (as proper practice) be measured from crest to crest
Unit of measurement for wavelength
metres (m)
The symbol for wavelength?
λ (lambda)
λ is called
lambda
Define speed in relations to waves
the distance a wave travels in one second
Define amplitude
The distance between the centre line and the crest of the wave or between the centre line and the trough
What is the trend between the amplitude of the wave and the amount of energy it carries?
The bigger the amplitude the more energy the wave is carrying
What is the trend between the amplitude and the volume of sound produced by the wave
The larger the amplitude the louder the sound
What is the speed of sound in air
340 ms-¹
INFORMATION CARD
When light passes from air into glass it bends towards the normal. When it passes from glass back into air it bends away from the normal.
