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=Electromagnetic Energy =

More Information
Energy makes changes possible. Energy is the ability to move or change matter or the ability to do work. There are many different forms of energy. One of the forms of energy, is called electromagnetic energy. This form of energy cannot be seen, but is very useful. Some examples of electromagnetic energy are lightning, magnets connecting, light bulbs, or a microwave. Radiant energy is like a form of electromagnetic energy. Radiant energy can be conveyed through electromagnetic waves. These waves are a special form of waves. Electromagnetic waves can travel through anything without a substance. Electromagnetic energy can be found in many different "sections". There is radiant energy, electric energy, and magnetic energy. These all having to do with electromagnetic energy. 

Applying Electromagnetic Energy
A microwave is a good example of something that has to do with electromagnetic energy. Not all of the parts are electromagnetic energy, but the microwave uses electromagnetic waves to cook the food. The radiation of the waves helps heat up or cook the food. The oven's electromagnetic radiation waves passes through the water molecules in the food, changing the water molecules to flip themselves in order to be aligned with the new polarity." Heat is created by the resulting friction of the water molecules reversing direction millions of times a second. Eventually however long you have the microwave set for, the electromagnetic waves stop and the food is cooked and warm. 

Modeling Electromagnetic Energy


Experimenting with Electromagnetic Energy
Radiometer – obtain a flashlight and a radiometer. Shine the light onto first the white vanes and observe. Then shine the light onto the black vanes and observe. Explain what happens.

Materials: Flashlight, radiometer Results:  The purpose of the scientific experiment was to figure out which colors absorb and emit, or reflect light. In the experiment a flashlight and radiometer was used. A flashlight was shone onto the white vanes and what happened was observed and recorded. Then the flashlight was shone onto the black vanes, the observation information was recorded. When the flashlight was shone onto the white vanes, nothing happened. When the flashlight was shone onto the black vanes, the vanes started spinning clockwise. This is because black absorbs light and emits it, making it spin. Meanwhile, white reflects light. White light is actually all the colors mixed together. The radiometer spins because of the heat of the sun. A flashlight is the replacement of the sun light. When the black vanes absorb the light, radiation waves are given off. Eventually the radiation waves need to emit their energy. The energy comes out in the form of spinning the vanes in a circle.
 * Color of Vane || Observations ||
 * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">White Vanes || <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">When you shine the flashlight onto the white vanes of the radiometer, nothing happens. Even if you change where the light is pointing from, the vanes don't do anything. ||
 * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Black Vanes || <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">When you shine the light onto the black vanes the vanes start turning to the left slowly, but surely. If you point the flashlight from farther away, it turns faster. ||