Wave Graphs

Waves may be graphed as a function of time or distance. A single frequency wave will appear as a sine wave in either case. From the distance graph the wavelength may be determined. From the time graph, the period and frequency can be obtained. From both together, the wave speed can be determined.


Any of the wave parameters below can be changed. When you have finished entering data, click on the quantity you wish to calculate. The quantities will not be forced to be consistent until you click on the desired quantity.

Wavelength = m
Frequency = Hz
Period = s
Amplitude = 2
Wave velocity = m/s


Traveling wave relationshipPeriod and frequency
Index

Traveling wave concepts
  HyperPhysics***** Sound Go Back





Traveling Waves

Elasticity and a source of energy are the preconditions for periodic motion, and when the elastic object is an extended body, then the periodic motion takes the form of traveling waves.
A pond has an equilibrium level, and gravity serves as a restoring force. When work is done on the surface to disturb its level, a transverse wave is produced.
A disturbance of the air pressure produces a spherical traveling pressure wave (sound). A sound wave in air is a longitudinal wave.

Traveling wave relationshipWave plot example
Index

Traveling wave concepts
  HyperPhysics***** Sound Go Back





Waves on a Pond

A pebble thrown into a pond will produce concentric circular ripples which move outward from the point of impact. If a fishing float is in the water, the float will bob up and down as the wave moves by. This is a characteristic of transverse waves. Such waves obey the wave relationship.

Traveling wave relationshipWave plot exampleSimple harmonic motion
Index

Traveling wave concepts
  HyperPhysics***** Sound Go Back