Electromagnetic Energy

Electrical energy occurs between electrically charged particles, which are usually moving through a wire. These particles can be negatively or positively charged, and the opposite charges will attract, while similarly charged electrons repel.
Negative charges are carried by electrons, while positive charges are in protons. Atoms can become negatively charged when they gain too many electrons, and positively charged atoms develop when there is a loss of electrons.
An electric potential occurs when two charges have the potential to interact with each other and leads to kinetic energy of charged particles. These particles can create an electrical current by traveling from one place to another if they are given a path to follow. However, the particles can only move if the path they are given is made with one of several materials called conductors. Other materials, called insulators, cannot carry electric energy. Once the energy has been captured, it can be used or stored.
Thunderclouds contain a form of electrical energy called static electricity, which is released in the form of lightning when the clouds hit each other during a storm.


Batteries can also make small quantities of electric energy when the chemicals they contain react and create an electric potential. If a battery is connected to an appliance such as a radio, the electric potential is changed into kinetic energy in the particles. The electrons in the battery travel to the radio by moving through a wire conductor, which starts at the negatively charged side of the battery, goes through the radio, and returns to the battery at the positively charged side. In the radio, the electric kinetic energy is converted to sound playing through the speakers. Batteries can be used for many other uses other than producing sound, such for creating light in flashlights or light bulbs or powering a television.


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The purpose of the experiment was to illuminate the light bulb using a battery and a wire.



There were four possible ways to use the given materials to achieve the goal. In the first method, the wire was connected to the negative terminal of the battery. Then the electrical foot contact of the light bulb was touched to the positive terminal. Finally, the other end of the wire was placed on the screw thread contact of the light bulb. The second method was similar to the first, but the screw thread contact was put on the positive terminal instead of the electrical foot contact. Also, the wire was connected to the electrical foot contact. The third and fourth ways were basically the opposites of the first two: the wire was connected to the positive terminal first, not the negative terminal.



These four methods all resulted in the light bulb being illuminated.