5.2 Measuring Waves Flashcards
What is the relationship between a waves amplitude and thanking of energy it carries?
The greater the amplitude, the more energy it carries
What is the wavelength of a wave?
The distance from one crest to another
What is a waves frequency?
The number of wave crests passing a point per second
What is the unit of a waves frequency?
Hz
What does it mean if a waves wavelength is smaller?
It’s frequency is bigger so there are more waves per second
What is a waves wave speed?
The speed it is travelling
What is the calculation for wave speed?
V = f x h
Where
V is the wave speed in m/s
F is the frequency in Hz
h (weird symbol guy) is the wavelength in m
What is the frequency of waves with a frequency of 5Hz and a wavelength of 2m?
10m/s
What is the amplitude of a wave?
The height of the wave crest or depth from the rest position to the trough
How do you measure the wavelength of a longitudinal wave?
The distance from the middle of one compression to the middle of the next one
This is the same as
The distance from the middle of one rarefaction to the middle of the next one
How do you work out the frequency of a longitudinal wave?
The number of compressions passing a point in one second
