Waves And Their Properties Flashcards
Frequency
the number of waves that pass a fixed point in a certain unit of time
How to work out frequency
No. Of waves past a point/time
Measured in hertz
Amplitude
Maximum distance a point moves from its rest position in the middle
The larger the amplitude…
The greater the energy of the wave
Amplitude of transverse wave
Height of a peak or trough from the rest position of the wave
Wavelength
The distance between two matching points on neighbouring waves
What are peaks
The high points of a transverse wave
Troughs
The low points of a transverse wave
Examples of transverse waves
Water
EM - eg. Light
Describe the movement of transverse waves
The particles move up and down so the direction of their movement is at right angles to the direction of the wave
Describe the movement of longitudinal waves
The particles vibrate back and forth so the direction of their movement is parallel to the direction of the wave
In a longitudinal wave, the coils do not travel horizontally.. each coil of the slinky
Just vibrates left and right
compressions
region in a longitudinal wave where the particles are closest together
Rarefractions
region in a longitudinal wave where the particles are furthest apart
What are P waves
primary waves produced by earthquakes
longitudinal ,
push and pull the earth
