Transcript Energy Forms

Energy Forms
What is Energy?
Energy is the ability to do work
 It allows us to change or move matter
 We have learned to utilize energy to
make life more comfortable and
efficient
 Energy occurs in many forms

Two Main Groups

Energy can be divided into two main
groups:

KINETIC: energy of motion



Motion of waves, molecules, substances,
and objects
Radiant, Thermal, Mechanical, Sound, Solar
POTENTIAL: stored energy


Think of it as the “potential” for active energy
Examples include: Chemical, Electrical,
Gravitational, Nuclear
Types of
KINETIC Energy
Thermal Energy
Thermal = Heat
 As molecules in a substance move
more quickly, they produce heat and
thermal energy is increased
 Geothermal Energy- heat energy from
the inside the Earth


Geo = Earth
Examples of Thermal
Energy
Radiant Energy
Travels in waves
 Includes light, x-rays, gamma rays,
and radio waves
 Also called electromagnetic


Solar energy is a special type of
radiant energy that combines heat
and light to warm the Earth
Examples of Radiant Energy
Mechanical Energy

Energy produced by moving parts or
objects
Machines
 Your body
 The faster the motion the greater the
energy

• Think of a car crash
Examples of Mechanical
Energy
Types of
POTENTIAL
Energy
Chemical Energy




Stored in the bonds of atoms and molecules
Energy released from chemical reactions
Is converted into other forms of energy
when bonds are broken or combined
Biomass- is stored chemical energy that we
get from living things


Bio = living things
Use coal to create fuel
Examples of Chemical
Energy
Electrical Energy
Energy created by the movement of
charged electrons
 Often travel through wires or circuits
 Usually converted into other forms of
energy

Examples of Electrical
Energy
Nuclear Energy
Energy stored in the “nucleus” of
atoms
 Two processes to access this energy:

NUCLEAR FISSION: splitting one
large nucleus into two smaller ones
 NUCLEAR FUSION: combining two
smaller nuclei into one larger one

Examples of Nuclear Energy
Energy Transformations
Occur when one form of energy is
“transformed” or converted into
another more useful form
 For example:


Electrical Energy Light and Thermal
energy
QUIZ TIME!!!!
What types of energy are shown
below?
Chemical, Electrical, Mechanical and
Radiant/Electromagnetic Energy
What type of energy is shown
below?
Chemical Energy (yummy)
What type of energy is shown
below?
Thermal Energy
What type of energy is shown
below?
Mechanical Energy
What type of energy is shown
below?
Nuclear Energy
What type of energy is shown
below?
Thermal and Electrical Energy
What type of energy is shown
below?
Solar Energy

Draw a flow map showing the flow of energy
transformations in a car from starting vehicle
to driving.
Radio: Chemical  Electrical Mechanical  Sound
Tires: Chemical  Mechanical  Thermal