ENERGY
ENERGY
Energy is the ability to do
work or cause change.
ENERGY CAN BE DIVIDED INTO TWO TYPES
OR STATES
Potential
Energy stored in an
object, due to its
position or chemical
energy stored inside it.
Kinetic
Energy an object has
due to its motion or
movement.
OBJECTS MAY HAVE BOTH
POTENTIAL AND KINETIC ENERGY!
POTENTIAL ENERGY CAN BE
INCREASED BY • Increasing an object’s mass
• Increasing an object’s height
KINETIC ENERGY CAN BE
INCREASED BY• Increasing an object’s mass
• Increasing velocity or speed
FORMS OF ENERGY
Thermal
energy
Chemical energy
Radiant energy
Electrical energy
Nuclear energy
Solar energy
Mechanical energy
THERMAL ENERGY
Heat
energy
ALL objects
have thermal
energy that
increases as
temperature
increases
CHEMICAL ENERGY
Energy stored in
chemical bonds
RADIANT ENERGY
Energy carried by light
ELECTRICAL ENERGY
Energy carried by electric current
(wires are usually involved)
NUCLEAR ENERGY
Energy contained in
atomic nuclei
SOLAR ENERGY
Energy from the Sun
MECHANICAL ENERGY
Energy associated with machines or
movement
ENERGY TRANSFORMATIONS
One form of energy can be transformed
or converted into other forms of energy.
Example(Sun)
(Plant)
Solar
Chemical
MORE PRACTICE!
battery
wires
light and heat
radiant
chemical
electrical
thermal
AGAIN-
Hair dryer
thermal
electrical
mechanical