Julia Martinez Ariza
Nerea Silva Sanchez
Alicia Romero Viñas
Energy is the ability of an object to change
things around it. Energy can be mechanical,
light, thermal,electrical, chemical or nuclear.
SOURCES OF ENERGY
OTHER SOURCES OF
Fuels are sources of
chemical energy. Coal,
natural gas and
petroleum are fuels
Water is a source of
Wind is a source of
plutonium are sources
of thermal energy.
Waves and tides.
Renewable: water, wind, sun, biomass, waves
Non-renewable: fuels, uranium and plutonium.
Electricity is a form of energy:
We can transport easily through power lines.
It transform into other types of energy, like
the light energy of a light bulb.
Static electricity:it occurs when an object
accumulates electrical charge.
An objetc is neutral when it has the same
number of positive and negative charges.
An object is positively charged when it has
more positive than negative charges.
An object is negatively charged when it has
more negative than positive charges.
Objets with different electrical charges will
attract each other, and objets with the same
electrical charges will repel each other.
Electrical charges move easily through
Electrical charges cannot move through
insulating materials like wood, rubber and