Download Electrical energy - Lyndhurst Schools

Energy Transformations
Review: Different Forms of Energy
• Energy comes in many forms…
– Chemical
– Electrical
– Light
– Mechanical
– Nuclear
– Thermal
– Sound
Chemical Energy
• Chemical energy is energy stored in the bonds
between atoms
• Review: What type of chemical reactions
release energy?
Electrical Energy
• Electrical energy is energy created by the flow
of charged particles through a conductor
Light Energy
• Light energy is energy in the form of visible
electromagnetic radiation
Nuclear Energy
• Nuclear energy is the energy stored in the
nucleus of an atom
• Nuclear energy can be released through either
nuclear fission or nuclear fusion
Thermal Energy
• Thermal energy is energy in the form of heat
Sound Energy
• Sound energy is energy in the form of audible
vibrations
Mechanical Energy
• Mechanical Energy is the form of energy that
we have been discussing over the past few
days!
mechanical energy = potential energy + kinetic energy
Kinetic Energy
1. Kinetic energy is
the energy of
motion.
Potential
Energy
2. Stored
energy
Law of Conservation of Energy
• Energy cannot be created or destroyed, it can
only change forms.
• The total amount of energy in the universe
remains constant!
Energy Transformations
• All energy transformations require an input
and an output (similar to a chemical reaction)
Example:
• When wood burns in a fire, the chemical
energy in the wood is turned into…
• Thermal (heat) energy
• Light energy
• Sound energy
Example:
• Solar panels turn light energy into…
• Electrical energy
KINECTIC ENERGY
how energy moves
sound
POTENTIAL ENERGY
how energy is stored
stored
mechanical
chemical
(
electric
(
nuclear
((
((
electromagnetic
moving
mechanical
thermal
What type
of energy?
What type
of energy?
KINETIC ENERGY
ELECTROMAGNETIC
ENERGY
What type
of energy?
What type
of energy?
KINETIC ENERGY
ELECTRICAL
ENERGY
Heat from a toaster
Heat from a toaster
KINETIC ENERGY
THERMAL
ENERGY
Ring from a Cell Phone
Ring from a Cell Phone
KINETIC ENERGY
SOUND
(
(
((
((
ENERGY
Lump of Coal
Lump of Coal
POTENTIAL ENERGY
CHEMICAL
ENERGY
Moving Bus
Moving Bus
KINETIC ENERGY
MOVING
MECHANICAL
ENERGY
Law of Conservation of Energy
• Energy cannot be created or destroyed only
transferred from one form to another
Your Paper
• IMPUT
• OUTPUT
Ball Rolling Down A Hill
Input:
Output:
Ball Rolling Down A Hill
Input:
height
Output:
speed
Ball Rolling Down A Hill
Input:
Output:
Light Bulb
Input:
Output:
Light Bulb
Input:
Electricity
Output:
Light
Light Bulb
Input:
Electrical
Energy
Output:
Electromagnetic
Energy
KINETIC ENERGY
KINETIC ENERGY
ELECTRICAL
ELECTROMAGNETIC
ENERGY
ENERGY
Electric Oven
Input:
Output:
Electric Oven
Input:
Electricity
Output:
Heat
Electric Oven
Input: Electricity
Output: Heat
KINETIC ENERGY
KINETIC ENERGY
ELECTRICAL
THERMAL
ENERGY
ENERGY
Battery Powered Flashlight
Input:
Output:
Battery Powered Flashlight
Input:
Batteries
Output:
Light
Battery Powered Flashlight
Input:
Chemical Energy
POTENTIAL ENERGY
CHEMICAL
ENERGY
Output:
Electromagnetic
Energy
KINETIC ENERGY
ELECTROMAGNETIC
ENERGY
Coal Power Plant
Input:
Output:
Coal Power Plant
Input:
Coal
Output:
Electricity
Coal Power Plant
Input:
Coal
POTENTIAL ENERGY
CHEMICAL
ENERGY
Output:
Electricity
KINETIC ENERGY
ELECTRICAL
ENERGY
Tree
Input:
Output:
Tree
Input:
Sunlight
Output:
Wood
Tree
Input:
Sunlight
KINETIC ENERGY
Output:
Wood
POTENTIAL ENERGY
ELECTROMAGNETIC
CHEMICAL
ENERGY
ENERGY
Ipod Shuffle
Input:
Output:
Ipod Shuffle
Input:
Batteries
Output:
Sound
Ipod Shuffle
Input:
Batteries
Output:
Sound
POTENTIAL ENERGY
KINETIC ENERGY
CHEMICAL
SOUND
(
ENERGY
(
((
((
ENERGY
Solar Panels
Input:
Output:
Solar Panels
Input:
Light
Output:
Electricity
Solar Panels
Input:
Light
Output:
Electricity
KINETIC ENERGY
KINETIC ENERGY
ELECTROMAGNETIC
ELECTRICAL
ENERGY
ENERGY
Input:
Output:
Nuclear Power Plant
Input:
Nuclear
Fission
Output:
Electricity
Nuclear Power Plant
Input:
Nuclear
Fission
Output:
Electricity
POTENTIAL ENERGY
KINETIC ENERGY
NUCLEAR
ELECTRICAL
ENERGY
ENERGY
Wind Farm
Input:
Output:
Wind Farm
Input:
Movement
Output:
Electricity
Wind Farm
Input:
Movement
Output:
Electricity
KINETIC ENERGY
KINETIC ENERGY
MOVING
MECHANICAL
ELECTRICAL
ENERGY
ENERGY
Dam (Hydroelectric Plant)
Input:
Output:
Dam (Hydroelectric Plant)
Input:
Moving
Mechanical
Energy
Output:
Electricity
Dam (Hydroelectric Plant)
Input:
Moving
Mechanical
Energy
Output:
Electricity
KINETIC ENERGY
KINETIC ENERGY
MOVING
MECHANICAL
ELECTRICAL
ENERGY
ENERGY
TV
Input:
Output:
TV
Input:
electricity
Output:
Sound and light
TV
Output:
Sound and light
Input:
electricity
POTENTIAL ENERGY
KINETIC ENERGY
KINETIC ENERGY
ELECTROMAGNETIC
SOUND
ENERGY
(
(
((
((
CHEMICAL
ENERGY
ENERGY
Dam (Hydroelectric Plant)
Input:
Output:
Dam (Hydroelectric Plant)
Input:
Moving
Mechanical
Energy
Output:
Electricity
Dam (Hydroelectric Plant)
Input:
Moving
Mechanical
Energy
KINETIC ENERGY
MOVING
MECHANICAL
Output:
Electricity
KINETIC ENERGY
ELECTRICAL
ENERGY
ENERGY
Cell Phone
Input:
Output:
Cell Phone
Input:
Battery
Output:
Sound and
Light (from
screen)
Cell Phone
Output:
Sound and
Light
Input:
Battery
POTENTIAL ENERGY
KINETIC ENERGY
KINETIC ENERGY
ELECTROMAGNETIC
SOUND
ENERGY
(
(
((
((
CHEMICAL
ENERGY
ENERGY
Projector
Input:
Output:
Projector
Input:
Electricity
Output:
Light
Projector
Input:
Electrical
Energy
Output:
Electromagnetic
Energy
KINETIC ENERGY
KINETIC ENERGY
ELECTRICAL
ELECTROMAGNETIC
ENERGY
ENERGY
Fire
Fire
Input:
Wood
Output:
Heat
And Light
Fire
Output:
Heat And Light
Input:
Wood
POTENTIAL ENERGY
KINETIC ENERGY
KINETIC ENERGY
ELECTROMAGNETIC
CHEMICAL
THERMAL
ENERGY
ENERGY
ENERGY
The Sun
The Sun
Input:
Nuclear Fusion
Output:
Heat
And Light
The Sun
Input:
Nuclear Fusion
POTENTIAL ENERGY
NUCLEAR
ENERGY
Output:
Heat And Light
KINETIC ENERGY
KINETIC ENERGY
ELECTROMAGNETIC
THERMAL
ENERGY ENERGY
Car
Input:
Output:
Car
Input:
Gas
Output:
Motion
Light
Sound
Car
Output:
Input:
Gas
KINETIC
ENERGY
POTENTIAL ENERGY
ELECTRO
MAGNETIC
ENERGY
ENERGY
(
((
(
KINETIC
ENERGY
((
CHEMICAL
SOUND
KINETIC
ENERGY
ENERGY
MOVING
MECHANICAL
ENERGY
Write Two Lists
• Ways humans transform • Items humans use to
energy into electricity
transfer electric energy
into another form of
– Ex: Coal power Plant
energy
– Oven  thermal
– Fan  moving
mechanical