Thursday, January 9, 2014

Static Electricity

In this world, almost everything is made out of Atoms, Atoms are the basic building block of matter, and Atoms are made out of 3 things Protons, Electrons, and Neutrons each of them has their own properties Proton have a positive charge, Electrons have a negative charge, and Neutrons are neutral or no charge.
Today, me and my group do an experiment in class, we rub a plastic folder into someone's hair, shirt, pants and then we try to hover the plastic thing on tiny pieces of paper and sharpener waste, what happen is that the tiny pieces of paper and the sharpener waste stick to the plastic thing. and that is because, that plastic thing gains electrons from the thing we rub on (hair,shirt,pants) making that plastic thing negatively charge, making the tiny piece of paper and the sharpener waste attracted to the negatively charge plastic thing because the tiny piece of paper and the sharpener are full of protons and positive charge.

In an electrical circuit the cell or battery pushes the electrons around the circuit, when an electron pass through a lamp in the circuit they lose some of the electrical energy making the lamp to lit up, therefore across the lamp there is an electrical energy difference, electrons that are entering the lamp have a higher electrical energy than the one leaving the lamp, this difference in electrical energy on lamp is called "Potential Difference" or "P.D". Potential difference is measured in units called "Volts" and has the symbol V it is also measured by something called a Voltmeter

Electric current is the movement of electrons from the negative terminal to the positive terminal of a circuit. This is because electrons are negatively charged and want to move away from the negative terminal and head towards the positive terminal,that is called "Conventional Current Flow"

1 comment:

  1. it would be good if we could see some photos / pictures.

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