Thursday, December 1, 2011

Topic of Magnetism

Kermelr Ruperto Justiniano

When we think about physic, we think about strength, we think the action of moving an object, dropping things, etc. In my studies of physics without doubt one of the issues but to draw attention to me as a kid I was curious is the subject of magnetism. When a child sees as certain materials are attracted to each other and one asks, "How that occur?" or "Why that occur?". And here where the physics helped me to understand part of why and how this phenomenon occurs that is so important in life on earth as in many of the artifacts that we use. 

To give a simple definition of what we could say that magnetism is a fundamental force in our nature, which is one of the forces is used in many of the components used and an used such as the compass. Magnetism occurs when when certain charged particles set in motion. We see mostly, but do not know when certain materials attract or repel. There will be seen when they are two magnets, if you put glue on one side or else try to separade and try to unite them more than you do not. This is where true strength of attraction and repulsion. These issues go beyond simply paste or separate things. The magnetism able to help scientists understand atomic structures. 

The area includes many magnetism such as electromagnetism that surrounds what is electricity. These areas were studied years ago simultaneously and noticed that there was a relationship between them. Behaviors were observed that when a magnet as it approached a induce cable is produced or an electric current in the cable (discovered by Michael Faraday). It was also noted that there were internal magnetic fields in materials such as iron (Ernst Weiss), among other things. With all this research is an able to do many simulations and research. Going back fully to the magnetism is a very interesting are the magnetic fields, which also involve electricity in some cases.Una bar magnet or current-carrying wire can influence other magnetic materials without touching them physically because magnetic objects produce a 'field magnetic'. Magnetic fields are usually represented by 'magnetic field lines' or 'lines of force'. At any point, the direction of the magnetic field is equal to the direction of the lines of force. After saying this, I explain the workings of one of the things that after seeing and learning in my class that I decided to take on the task of seeing how the compass works is that an object that looks simple but it is, we can see that is physically behind his invention. 

The compass lets us know according to the place where we stand, to where is north, but, "How this happen?". The compass needle is a needle that magnetism and rotates about an axis. This indicates the direction north and south magnetic pole. The movement of the needle and the sense tell us that we must turn occurs internally and the earth has a magnetic field, where the South Pole of the field is in the North pole of the earth and the North Pole is in the field the South Pole of the earth. The needle and said that this magnet with the North Pole, opposite the South Pole of the earth's magnetic field. As explained earlier the opposite poles attract, for that reason the North pole of the compass is attracted the south pole of the earth's magnetic field which in turn is at the geographic North Pole. This is why we always tell the compass to where the North. Although I have to first admit that physics is not 100% mine, I must say it helps explain many of the situations that you are not even know why or how they occur.

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