What a machine!

By: Olmo Vizán

Helena RománJuan Cerisola

Cristina Martinez

First part:

-Who discovered electricity? Benjamin Franklin

-Where was it found?It was found near the old Greek city of Magnesia -When was it discovered?It was discovered in the year 600 A.C

Second part What was the first

application for electricity ? It was for an electric battery

What was it used for? to prove that electricity could

pass from objects

THOMAS EDISON LIGHT BULB

Third part: Which was one of the first electric

machines we invented? it was the light bulb. invented by Thomas Edison in the year

1879. It is an electric light used actually for

illuminating the night. it consists of a filament with to vertical

wires.

Can you idenfity the parts of the machine?

The main parts of a machine are; The generators, the motors, the Transformers which changes the

voltage level of an alternating current.

Fourth part:

Explain where the electrical energy of the light bulb came from.

The electrical energy of a light bulb is produce depending on the matter we use to generate it. We can use the watter as a source of electricity(this is called hydroelectrical energy), we can use the wind as another source this is called aeolic energy.We also use uranium to produce it, but all depends from the matter we are going to use.

Explain what energy transformations performed the machine:

The energy of a light bulb comes from the electric motor,which have mechanical energy, then the generator turns the mechanical energy into kinetic energy and finaly the transformers which cange the kinetic energy into electrical energy.

What applications did this machine had?

Obviously the application of the light bulb is and was to iluminate, but what all the inventors looked for was: A light bulb that last for a long period of time without consuming large quantities of energy.