energy transformations energy is review: what is energy? the ability to do work or make a change...
TRANSCRIPT
Energy Transformations
Energy is
Review: What IS Energy?
the ability to do work or make a change
Move matter (stuff) Change matter (stuff)
For example:Move something
from here to there (like a car), around and around (like a turbine),
up and down (like a piston),back and forth (like legs), etc.
Maybe it will be aphysical change
Maybe it will be achemicalchange
When there is a changein the color, shape,
size, or state (solid, liquid, gas)
of the matter
When matter changes to an entirely
newsubstance
Review: Why do we NEED energy?Energy helps us in five very valuable ways:
1.) Energy makes things move.
2.) Energy makes heat.
3.) Energy makes light.
4.) Energy makes technology work because it runs electrical devices.
5.) Energy makes things grow.
Energy cannot be created or destroyed,but we can…..
transform it into other sorts of energy.
The wind flows over the airfoil shaped blades
causing lift, like the effect on airplane wings,
causing them to turn. The blades are connected to a
drive shaft that turns an electric generator to
produce electricity.
Wind energy to electric energy.
Where does the wind come from?
In the past, wind was used to grind grain. In the Westit was used to pump water out of the ground.Now wind is used to create electricity.
Go on a Tour of a Coal Power Plant
Click on this diagram & then click on
Go now.
is transformed into
Thermal Energy
Mechanical Energy
of steam
of the turbine
The original source of energy – even for all other sources of energy is…
the SUN!!!!
What types of energy are shown below?
Electrical, Mechanical andChemical Energy
What type of energy is shown below?
Chemical Energy (yummy)
What type of energy is shown below?
Thermal Energy
What types of energy are shown below?
Mechanical and Thermal Energy(Thermal due to friction)
What type of energy is shown below?
Chemical Energy
What energy transformation occurs
when an electric lamp is turned on?
ELECTRICAL ENERGYLIGHT ENERGY
We do not make new energy or lose energy. We only
TRANSFORM it.
Electrical energy is transported to your house through power lines.
When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?
MECHANICAL ENERGY
is transformed into
Chemical EnergyFrom food
Mechanical Energy
ThermalEnergy
and
is transformed into
Energy Transformation
Chemical
Electrical
Electrical
Electrical
Sound(mechanical)
Light(Electromagnetic)
ThermalMechanical
How a Flashlight Works
END
is transformed into
Mechanical Energy
Electrical Energy
of the turbine
in the generator
Just imagine this guy's brain to get this to work (right)! Http://www.youtube.com/watch_popup?v=HSKyHmjyrkA&feature=email
EM
Mechanical
Heat
Energy Types:Drag & Drop
Online Review Game –What is Energy?
• Warning!!!! This game uses the term “kinetic energy” instead of “mechanical energy.” As you play the game, replace the word “kinetic energy” with the term “mechanical energy.” In this game, they mean the same thing: the energy of moving (motion).
Types of Energy
Stored energy = Elastic energy = Potential energy
What type of energy cooks food in a microwave oven?
What type of energy is the spinning plate inside of a microwave oven?
ELECTROMAGNETIC ENERGY
MECHANICAL ENERGY
• Draw a flow map showing the flow of energy transformations in a car from starting vehicle to driving. You should have 5 different types of energy.
is transformed into
Radiant (Light) Energy
Electrical Energy
is transformed into
Chemical Energy
Solar Energy
of photosynthesis
is transformed into
http://www.fw.vt.edu/dendro/forestbiology/photosynthesis.swf Photosynthesis animations
http://www.pbs.org/wgbh/nova/methuselah/photosynthesis.html
Chemical Energy
Solar Energy
of photosynthesis
is transformed into
Mechanical Energy
Thermal Energy
You know this because the water that was once part of the cube of ice is now sliding onto the table.
is transformed into
Mechanical (Kinetic) Energy
Gravitational Energy
is transformed into
Radiant (Light) Energy
Chemical Energy
Thermal (Heat) Energy
and
is transformed into
Electrical Energy
Thermal Energy
is transformed into
Radiant (Light) Energy
Chemical Energy
andThermal
(Heat) Energy
is transformed into
Electrical Energy
Light Energy
is transformed into
Electrical Energy
Thermal (Heat) Energy
MechanicalEnergy
and
is transformed into
Chemical Energy
Thermal Energy
Light Energy
and
Kerosene Lantern
is transformed into
Electrical Energy
Mechanical Energy
WindEnergy
is transformed into
is transformed into
Thermal Energy
Mechanical Energy
of steam
of the turbine
is transformed into
Electrical Energy Light Energy
of the turbine
is transformed into
Radiant (Light) Energy
Chemical Energy
Thermal (Heat) Energy
and
is transformed into
Radiant (Light) Energy
Chemical Energy
andThermal
(Heat) Energy
is transformed into
Nuclear Energy
andSolar Energy
of fission
is transformed into
Light Energy
Solar Energy
andThermal
(Heat) Energy
is transformed into
Elastic (Potential) Energy
Mechanical (Motion)
(Kinetic) Energy
is transformed into
Electrical
Energy
Heat Energy
is transformed into
Chemical Energy
Thermal (Heat) Energy
Biomass Furnace
is transformed into
Chemical Energy
Chemical Energy
of chewing food
of digesting food
is transformed into
Chemical Energy Mechanical Energy
from digested food
such as running
is transformed into
Chemical Energy
Mechanical(Kinetic or
Motion)Energy
is transformed into
Chemical Energyof exploding H
Mechanical(Kinetic or
Motion)Energy
of the rocket
Radiant (Light) Energy
Thermal (Heat) Energy
and
is transformed into
Mechanical (Kinetic/Motion)
Energy
Chemical Energy
Thermal (Heat) Energy
and
is transformed into
Mechanical (Kinetic or Motion) Energy
Mechanical (Kinetic or
Motion) Energyof wind
of the boat
is transformed into
Thermal Energy
Chemical Energy
in a biomass compost pile
is transformed into
Sound Energy
Mechanical Energy
that travels through the matter that we call air.
For us to be able to hear the music, the sound
energy must be transformed back into
Eardrum(You are lookinginto an person’sear.)
Mechanical Energyas our eardrums vibrate
of bowing against violin strings
Sound Energythat travels through the matter that we call air.
For us to be able to hear the music, the sound
energy must be transformed back into
Eardrum(You are lookinginto an person’sear.)
Mechanical Energyas our eardrums vibrate
is transformed into
Mechanical energy(of the moving motorcycle)
Chemical Energy
(in gasoline)
is transformed into
Chemical energy(of digesting the food)
Mechanical Energy
(of chewing food)
is transformed into
Electrical energy(that can be used to run a
machine)
,
Mechanical Energy
In a generator
,
Mechanical Energy of falling water
A generator inside a dam transforms
Generator
Electrical Energy
(that can be used to run a
machine)Wat
er F
low
into
Turbine
Mechanical Energy
Wat
er F
low
and is transformed into
Turbine
Gravitational Energy
pulls liquid water downward
(when the falling water turns the
blades of a turbine)
is transformed into
Radiant (Light) energyIn a home
Electrical Energy(flowing through wires)
Can you name ALL of the
Energy Transformations within this Nuclear Power Plant?
Condenses water vapor (gas) into water (liquid)
Uranium is in here.
In a turbine
is transformed into
Mechanical energy(the spinning of the turbine)
,
Mechanical energy
(Movement of wind, steam, or falling water)
Mechanical Energy
Electrical Energy
is transformed into
to make a motor turn
MOTORA turbineMakesThisTurn.
Mechanical Energy
Gravitational Energy
is transformed into
as leaves are movedfrom the high places in treesto the lower ground
Mechanical Energy
Gravitational Energy
is transformed into
as water droplets fall from clouds to ground
Energy Transformation = A change from one type of energy to another
is transforming into
Mechanical Energy
Thermal Energy
Mechanical Energy
Gravitational Energy
is transformed into
in these waterfalls
Mechanical Energy
Thermal Energy
is transformed into
when surface water moves into the air as water vapor
Mechanical Energy(the ability to move
muscles)
Chemical Energy(of digesting food)
is transformed into
is transformed into
Mechanical Energy(Strumming the guitar strings)
Sound energy(when the vibrating strings give out music)
is transformed into
Mechanical Energy(Strumming the guitar strings)
Sound energyfrom the vibrating strings
is transformed into
Electrical Energy
Sound energy
is transformed into
Electrical Energy
Heat energy
is transformed into
Nuclear Energy
Thermal energy
is transformed into
Electrical Energy
Heat energy
is transformed into
Nuclear Energy
Thermal energy
is transformed intoMechanical Energy
Mechanical energy
of the wind
of the blades on the wind turbine
is transformed intoMechanical Energy
Electrical energy
of the blades on the wind turbine
is transformed into
ThermalEnergy
Mechanicalenergy
in the spinning turbineof steam
is transformed into
ChemicalEnergy
Mechanicalenergy
(Motion)
of a carin a fuel cell
This fuel cell vehicle was driven by celebrities and dignitaries in London, England
is transformed into
Radiant(in this case, Solar, Energy
Electrical
energy
Radiant,in this case
Light, Energy
is transformed into
Radiantin this case, Solar, Energy
Electricalenergy
Mechanical Energy
(The car’s motion)
> >
is transformed into
Radiantin this case, Solar, Energy
Electricalenergy
Radiant,in this case
Light, Energy
is transformed into
is transformed into
ElectricalEnergy
Radiant(in this case,
LIGHT)Energy
is transformed into
MechanicalEnergy
of the spinning generator
ElectricalEnergy
is transformed intoThermalEnergyof steam
Mechanicalenergy
in the turbine
is transformed into
Chemical energy(because the chemicals that
enter the leaf are changed into different substances)
Radiant energy(Solar, in this case)
is transformed into light energy
Chemical Energy in the tail of the firefly
is transformed into
Chemical energy(when the chemicals that entered
the leaf are changed into new substances
during photosynthesis)
Radiant Energy
(Solar, in this case)
is transformed into
Chemical Energy(when chemicals in the glow sticks
combine to form a new chemical)
Light Energy(when the sticks illuminate)
is transformed into
Chemical Energy(when carbon dioxide and water
react with the energy of sunlight to produce something new:
oxygen and glucose food)
Radiant (Solar)
Photosynthesis
is transformed into
Electrical Energy(as electrons are produced)
Chemical EnergyStored in the battery
is transformed into
Sound Energy(when the phone’s vibrating bell rings)
is transformed into
Thermal Energy
Electrical Energy
is transformed into
Mechanical
Energy
Electrical Energy
Motor
Chemical Energy
Radiant (Light) Energy
Mechanical(Kinetic)
(Motion)
Energy
Electrical Energy
QUIZ TIME!What type of energy
cooks food in a microwave oven?
What type of energy is the spinning plate inside of a microwave oven?
ELECTROMAGNETIC ENERGY
MECHANICAL ENERGY
is transformed into
Electric Energy
MechanicalEnergy
HeatEnergy
is transformed into
the surroundings as thermal energy, sound energy,
light energy, and mechanical energy
When the explosive goes off, the
Chemical Energystored in the TNT/firecracker…
is transformed into
Mechanical Energy
AKA Motion Energy
AKA Kinetic EnergyAs the Transformer walks.
Nuclear Energystored in the Transformer
Sound Energy
Electrical Energy
Chemical Energy
Chemical Energy
Mechanical (Kinetic) (Motion) Energy
Electrical Energy
Mechanical (Kinetic) (Motion) Energy
Chemical Energy
Mechanical (Kinetic) (Motion) Energy
Electrical Energy
Thermal (Heat) Energy
Even the Sources of Energy that Humans Use
are the Result of Energy Transformations!
Check it out!
Over millions of yearsthis decayed matteris compressed into
the FOSSIL FUELS:Coal, Oil, ,
& Natural Gas
After death,plants &
animals decay
Sunradiatesenergyto Earth
Solar energy isused by plants inPhotosynthesis
and is storedas chemical energy
Plants pass 10%of their energy
to animalsthat eat them.This food istransformed
into chemical energy in the animal.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
FOSSIL FUELS,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useFOSSIL FUELS
as energysources to
get:
ElectricityElectricity
Over millions of yearsthis decayed matteris compressed into
the FOSSIL FUELS:Coal, Oil, ,
& Natural Gas
Sunradiatesenergyto Earth
Solar energy isused by plants inPhotosynthesisand is stored
as chemical energy
ElectricityElectricity
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
FOSSIL FUELS,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useFOSSIL FUELS
as energysources to
get:
After death,plants &
animals decay
Plants pass 10%of their energy
to animalsthat eat them.This food istransformed
into chemical energy in the animal.
Wood from trees can be burned
to release heat and light
energy.
Sunradiatesenergyto Earth
Energy from the sun
is used byplants in photosynthesis
and stored as chemical energy.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
BIOMASS FUELS FROM WOOD,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useBIOMASS FUELS
as energysources to
get:
ElectricityElectricity
Wood from trees can be burned
to release heat and light
energy.
Sunradiatesenergyto Earth
Energy from the sun
is used byplants in photosynthesis
and stored as chemical energy.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
BIOMASS FUELS FROM WOOD,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useBIOMASS FUELS
as energysources to
get:
ElectricityElectricity
Dung can be burned
to release heat and light
energy.
Sunradiatesenergyto Earth
Energy from the sun is used by
plants in photosynthesis and is stored as chemical energy.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
BIOMASS FUELS FROM DUNG,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useBIOMASS FUELS
as energysources to
get:
ElectricityElectricity
Animals eatplants and
store energyfrom theplants as
chemical energy.Unused food
is passed out of the animals’bodies as DUNG..
Dung can be burned
to release heat and light
energy.
Sunradiatesenergyto Earth
Energy from the sun is used by
plants in photosynthesis and is stored as chemical energy.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
BIOMASS FUELS FROM DUNG,which humans use as energy sources.
Drag and drop each picture under its description.
Humans useBIOMASS FUELS
as energysources to
get:
ElectricityElectricity
Animals eatplants and
store energyfrom theplants as
chemical energy.Unused food
is passed out of the animals’bodies as DUNG..
Sunradiatesenergyto Earth
Energy from the sun heats the atmosphere,,
causing winds..
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
POWER FROM WIND,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromWIND POWER
to produce:
Heat and Light
Heat and Light
The winds turnturbines,
which produceElectricity.
Sunradiatesenergyto Earth
Energy from the sun heats the atmosphere,,
causing winds..
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
POWER FROM WIND,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromWIND POWER
to produce:
Heat and Light
Heat and Light
The winds turnturbines,
which produceElectricity.
Sunradiatesenergyto Earth
Energy from the sun heats the atmosphere,,
causing winds..
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
WAVE ENERGY,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromWAVE POWER
to produce:
Heat and Light
Heat and Light
Wind energycauseswavesIn theocean
Wave energycauses turbinesto turn. Theseturbines turngenerators.Generators
produce electricity.
Sunradiatesenergyto Earth
Energy from the sun heats the atmosphere,,
causing winds..
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that end upproducing
WAVE ENERGY,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromWAVE POWER
to produce:
Heat and Light
Heat and Light
Wind energycauseswavesIn theocean
Wave energycauses turbinesto turn. Theseturbines turngenerators.Generators
produce electricity.
Sunradiatesenergyto Earth
Energy from the sun Is transformed intoelectrical energy
within solar panels(photo-voltaic panels).
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that result in
ELECTRICITY,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromPV Panels
to produce:
Heat and Light
Heat and Light
Sunradiatesenergyto Earth
Energy from the sun Is transformed intoelectrical energy
within solar panels(photo-voltaic panels).
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/EnergyTrans.aspx
These are energy transformations that result in
PHOTOVOLTAIC (PV) ENERGY,which humans use as an energy source.
Drag and drop each picture under its description.
Humans useelectricity
FromPV Panels
to produce:
Heat and Light
Heat and Light
Go here to Practice Identifying Examples of Types of Energy
• Go to Inspiration
The vibrating drum and the plucked guitar string transfer energy to the air as sound. This sound energy can be transferred to your eardrum as kinetic mechanical energy (movement energy).