Waves Flashcards
What is a wave?
A wave is a regular disturbance that transfers energy.
What is the amplitude of a wave?
The amplitude is the displacement from the rest position to a crest or trough.
What is the wavelength of a wave?
The distance between the same points on two adjacent disturbances
What is the frequency of a wave?
The frequency is the number of complete waves made by the source, or the cycles passing a certain point per second.
What is frequency measured in?
Hertz (Hz)
What is the period of a wave?
The number of seconds it takes for once full cycle to pass a certain point
What type of disturbances do transverse waves have?
Perpendicular disturbances
What type of disturbances do longitudinal waves have?
Parallel disturbances
Give 4 examples of transverse waves
Electromagnetic waves, S-waves, waves in water and waves on a rope
Give 2 examples of longitudinal waves
Sound waves in air and P-waves
What do longitudinal waves do to the arrangement of particles?
Longitudinal waves squash up and stretch out the arrangement of particles in the medium they pass through, making compressions and rarefactions
What is the wave speed equation?
Wave speed (m/s) =
frequency (Hz) x wavelength (m)
What is 1kHz equivalent to?
1000 Hz
What is 1MHz equivalent to?
1,000,000 Hz
