# Waves

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#### Storyboard Text

• Hello, everybody! I am going to be telling you about waves today.﻿
• To start, a wave is a form of carrying energy!﻿
• If I drop the rock in the pond, you can see waves!
• Sound is also an example of a wave!﻿
• Waves are a form of carrying energy. There are two categories of waves: Electromagnetic and Mechanical. Electromagnetic waves do not need a medium ( an object that a wave can pass through) to travel, while mechanical ones do.
• ﻿Tranverse Wave
• Rippling water is and example of a transverse wave. They are waves that run along a wavelength (like the cord that it is attached to) and rise and fall simultaneously. It is also an example of a mechanical wave.
• Every color that we can see is light reflecting off of them!
• ﻿Sound is an example of a longitudinal wave, waves that travel straight across the length of the wavelength, traveling parallel to where the motion is applied. It is also a form of a electromagnetic wave.
• Sound is one of the most common waves that we use!﻿
• This is an image of the waves if we were able to see them clearly.
• Longitudital Wave
• The light we can see is on the electromagnetic spectrum on visible light. The white light we see is made of all the colors we can see. The color is produced when an object reflects the color light it is and absorbs everything else. If we see a blue object, it reflects blue light and absorbs every other color. White objects reflect all light, while black absorbs all light. Using a prism we can split the white light into the color light we can see.
• ﻿Sound is caused by vibrations, such as caused in our throat. When the vibrations reach our ears, they are transferred into signals and sent to the brain. The brain processes these signals into what we hear.
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