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2. -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

5. THOMAS EDISON LIGHT BULB

6.  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.

7.  Can you idenfity the parts of the
?
,
the Transformers which changes the
voltage level of an alternating current.

8.  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.

9.  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.

10.  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.