Waves Flashcards
Wave Equation
Speed= frequency x wavelength
Frequency
Is the number of waves passing a point per second and is measured in Hertz (Hz)
Pitch (sound)
Wavelength
The distance between any point on a wave and and the same point on the next wave
Amplitude
Is the maximum displacement of the waves from the rest position
Volume (sound)
Time Period
(T) is the total time taken for a single wave to pass a point.
It can be caculated:
T= 1/frequency
What can waves do?
Waves transfer energy from one point to the other without the transfer of matter.
Either through space or through a material.
Transverse waves
Vibrate with a displacement perpendicular to the direction of travel of the wave
Displacement
Shortest distance from the initial to the final position of a point
Longitudinal Waves
Vibrate with a displacement parallel to the direction of travel of the wave
The types of waves
Transverse and longitudinal
The closer the waves
The higher the pitch/frequency
The greater the amplitude
The louder the sound
What happens when sound travels the air?
The particles vibrate backwards and forwards, parallel to the direction of the wave.
SOUND WAVES
What is the range of frequencies that a human ear can detect?
20 to 20,000 Hz
What kind of wave is sound?
Sound is a mechanical wave that requires a medium to travel through and so cannot pass through a vacuum (space)
