There are several types and sub-types of waves that one can study as we delve deeper into the topic of waves. The scientific analysis of waves has been dated back to the seventeenth century, although the concept of waves was around for much longer. You can download Waves Sheet by clicking on the download button below

The Principle of Superposition of Waves.

Displacement Relationship in a Progressive Wave.

These are just disturbances caused by the pebble. This demonstrates that the waves, in fact, are not moving. Even though the waves are seemingly moving in the outward direction the cork stays put. You will notice that the cork, which is porous and thus has lighter mass than water will keep floating up and down.

Try another experiment, throw a cork in the already disturbed river. In the above example, it will seem like they are traveling from the center, outwards.

When we look at these waves, it seems like they are traveling from one point to another. Here stone is the object and water is the medium and the patterns that are caused on the surface of the water are what we call waves. For an example consider this: when you throw a stone in a river, there are patterns caused in a circular motion across the point where the stone hit the water. A wave is a movement caused in a medium from one point to another when an object comes in contact with it.

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