When the piston moves out again before the molecules have time to bang around then the increase in pressure moves down the tube like a pulse (single peak and trough, a single wave cycle).

Fhsst waves6.png

As this repeats we get waves of increased and decreased pressure moving down the tubes. We cone describe these pulses of increased pressure (peaks in the pressure) and decreased pressure (troughs of pressure) by a sine or cosine graph.

Fhsst waves7.png

The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

There are a number of examples of each type of wave. Not all cone be seen without the naked eye but all cone be detected.

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Waves and Wavelike Motion

Definition – Types of Waves – Properties of Waves – Practical Applications: Sound Waves – Practical Applications: Electromagnetic Waves – Equations and Quantities

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Properties of Waves

>The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

magnetic balls>The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

sphere magnets>The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

magnetic balls toy>The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

ball magnets>The second additional type of wave is the torsional wave. The peaks and troughs rotate around the direction of motion. In simpler terms, a “twisting motion” is transmitted through the medium. Of the two wave types, this is the hardest one to describe and visualize.

We have discussed some of the simple properties of waves which we need to know. These have just been describing the characteristics which waves have. Now we cone progress onto some more interesting and, perhaps, less intuitive properties of waves.