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Science Report On Electromagnetism

1153 words - 5 pages

This report will be done on the theory of Electromagnetism. Electromagnetism is the force that combines electricity and magnetism. Electromagnetism is found in everyday things that shape our lives. It is the cleanest force used to make energy today, and it is used in almost every home appliance that is in a standard middle classed home. The E-M force is the most commonly under looked force that helps us live. Without Electromagnetism, we would be falling through floors, literally! E-M force can be found even in military weapons, and even the radio uses electromagnetism. Electromagnetism can save lives when used in critical medical equipment. This is one truly amazing force that we can no longer overlook if we wish to live a normal, healthy, and fun life. Electromagnetism, the most common, yet overlooked force that shapes out lives. (This is the first of my several subtopics dealing with the E-M force. This particular subtopic deals with electromagnetism's general uses. Electromagnetism is commonly used in microwaves, remote control cars, and it creates energy cleanly and fast. One of the most important uses for electromagnetism is in electronic motors. The main components are a core rod and many copper wires coiling around the iron rod. The coils rotate around the iron rod because of the magnetic force caused by a certain magnetic field on an electric current. While doing so, this turns electrical energy into mechanical energy. When this happens, normally a gear is attached to the end of the rod. That Gear is connected to another gear and that can be linked to anything you want to turn. However, when you reverse this process of making electrical energy into mechanical energy, it creates energy. This can be done with windmills, in dams, and in underwater tunnels that are specifically made for making energy. The way that works is that instead of the copper wires turning and making the iron rod turn, the copper coils. These windmills are actually called wind turbines. These wind turbines can vary in size greatly. Some can be fit on your roof, some need to be installed on big hills were the wind blows. Now that we are done talking about wind turbines, electromagnetism is used in remote control cars because of the electric motors. Some remote control cars use gasoline as their source but we will not get into that. Microwaves use electromagnetism the same way as remote controlled cars do. When their plate rotates, there is an engine under the plate. It is also sometimes used to create radio waves which are the main source of heat in the microwave.This paragraph will be talking about electromagnetism's history. In April 21, 1820, while preparing for a lecture, Hans Christian Orsted designed an experiment which provided evidence that surprised him. As he was preparing his materials, he noticed that a compass needle deflected from magnetic poles north when the electric current from the battery he was using was switched on and off. This deflection...

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