Download Different forms of energy

DIFFERENT FORMS
OF ENERGY
Notes # 3
Standard: 6.P.3A.1
WHAT IS ENERGY?
It is the ability to cause motion or change
It is a property of matter
It can change from one form to another
LAW OF CONSERVATION OF ENERGY
Energy comes in many different forms
It can be transferred from one form to another
It can not be created or destroyed, just changed
from one form into another form
FORMS OF ENERGY- ALL FORMS OF ENERGY
FALL UNDER TWO CATEGORIES
Kinetic – energy of motion
Potential – stored energy
 Thermal
 Chemical
 Radiant
 Mechanical Potential
 Electrical
 Gravitational
 Mechanical kinetic
 Nuclear
KINETIC ENERGY
Energy in motion in 



Waves
Electrons
Atoms
Substances
TYPES OF KINETIC ENERGY
1. THERMAL
Thermal ( heat ) is the energy of motion of the
particles in a substance.
All matter is made up of atoms ( particles) that
move faster when they heat up. The faster the
particles move, higher the temperature.
Heat is the transfer of thermal energy
Heat always moves from hotter objects to colder
objects
2. RADIANT
Energy which is transferred through electromagnetic
waves such as visible light, x-rays and ultraviolet light
Solar energy is part of radiant energy
* green plants use solar energy during photosynthesis
*most of the energy we use originally came from the Sun
Some sources of radiant energy are: stars, lights, and
microwaves
3. ELECTRICAL
Energy flowing in an electrical circuit
Some sources are: solar cells, and hydroelectric
generators, stored in batteries
4. MECHANICAL KINETIC
Energy due to motion
Mechanical Kinetic energy increases as an abject
moves faster
POTENTIAL ENERGY
POTENTIAL ENERGY (P.E) IS STORED ENERGY
TYPES OF POTENTIAL ENERGY
1. CHEMICAL
Chemical energy is stored within the chemical
bonds of matter
Chemical energy can be released
* for example in batteries, food, fuel when these
substances react to form new substances
2. MECHANICAL POTENTIAL
Mechanical Potential energy is related to the position of
an object
A stretched rubber band has potential energy- elastic p.e
A book on shelf has potential energy since gravity can pull
the book down- gravitational p.e
*the height and mass of an object effect the gravitational
p.e