Transcript Solar energy - Teacher Pages

Types of energy Solar energy, Heat energy,
Gravitational energy, Kinetic energy, and Chemical
energy.
Solar energy is radiant energy that travels from the
Sun to Earth
Heat energy is a form of energy that comes from the
random motion of atoms and molecules in any
substance.
Gravitational energy is the potential energy an object
has because of how far away it is from the ground.
Kinetic energy is the energy of motion.
Chemical energy is energy stored in the electrical
bonds that hold atoms and molecules together.
These pictures are
solar energy since
they use the sun for
energy and the sun is
solar energy.
Solar energy is radiant energy that travels from
the Sun to Earth. This powerful energy travels
a distance of about 150,000,000 kilometers and
at a speed of about 300,000 kilometers per
second. It takes the sun’s energy about 8½
minutes to reach earth! Most of the solar
energy reaching Earth is visible light. Some of
the energy is longer-wavelength thermal
energy that is felt as heat. Shorter-wavelength
ultraviolet solar energy is what causes
sunburn.
Kinetic energy is the energy of motion. The higher the speed
at which something is moving, the more kinetic energy it has.
Further, the amount of kinetic energy is also related to the
mass (weight) of an object. If equal volumes of air and water
are moving at the same speed, the water will have much more
kinetic energy because it is much denser than air is
These pictures
are kinetic energy
since kinetic
energy is the
energy of motion.
Chemical energy is energy stored in the electrical
bonds that hold atoms and molecules together. These
bonds are in all substances. When substances react
chemically, the energy of these bonds can be
released, absorbed, or transformed to other forms of
energy. For example, when you light a match, some of
the chemical energy stored in the match is
transformed into heat and light energy.
All of these
pictures are
chemical energy
since it is a
battery witch has
a chemical inside
of them.
Gravitational energy is the potential energy an
object has because of how far away it is from
the ground. An object’s gravitational energy is
related to its distance from the ground and to
its mass (weight).
These pictures are gravitational
energy since gravity is pulling the
objects down and they have weight.
Heat energy is a form of energy that comes from the
random motion of atoms and molecules in any
substance. We say that a substance gets hotter as the
movement of its atoms and molecules becomes more
vigorous.
This picture is heat energy
since is gives of heat and the
molecules are more vigorous.