Transcript Energy - Net Start Class

Energy Transformations
Review: What IS Energy?
Energy is
the ability to do work or make a change
Move matter (stuff)
Change matter (stuff)
Maybe it will be a Maybe it will be a
physical
chemical
change
change
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.
When there is a change
in the color, shape,
size, or
state (solid, liquid, gas)
of the matter
When matter changes
to an entirely
new
substance
Review: Why do we NEED energy?
Energy helps us in five very valuable ways:
1.) Energy makes things move.
4.) Energy makes technology work
because it runs electrical
devices.
2.) Energy makes heat.
5.) Energy makes things grow.
3.) Energy makes light.
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 West
it 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.
Thermal Energy
of steam
is transformed into
Mechanical
Energy
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 and
Chemical 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
We do not make new energy or
lose energy. We only
TRANSFORM it.
What energy transformation
occurs when an electric lamp
is turned on?
ELECTRICAL ENERGY

LIGHT ENERGY
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
Chemical Energy
From food
is transformed into
Mechanical
Energy
and
is transformed into
Thermal
Energy
Energy Transformation
Sound
(mechanical)
Thermal
Electrical
Mechanical
Chemical
Light
(Electromagnetic)
How a Flashlight Works
END
Mechanical Energy
of the turbine
is transformed into
Electrical
Energy
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
Energy Types:
Drag & Drop
Mechanical
Heat
EM
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?
ELECTROMAGNETIC ENERGY
What type of energy is
the spinning plate
inside of a microwave
oven?
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.
Electrical Energy
is transformed into
Radiant (Light)
Energy
Solar Energy
is transformed into
Chemical Energy
of photosynthesis
Solar Energy
is transformed into
Chemical Energy
of photosynthesis
Photosynthesis animations
http://www.pbs.org/wgbh/nova/methusel
http://www.fw.vt.edu/dendro/forestbiology/photosynthesis.swf
ah/photosynthesis.html
Thermal Energy
is transformed into
Mechanical Energy
You know this because the water that
was once part of the cube of ice is now
sliding onto the table.
Gravitational
Energy
is transformed into
Mechanical (Kinetic) Energy
Chemical Energy
is transformed into
Radiant
(Light)
Energy
and
Thermal
(Heat)
Energy
Electrical Energy
is transformed into
Thermal
Energy
Chemical Energy
is transformed into
Radiant
(Light)
Energy
and
Thermal
(Heat)
Energy
Electrical Energy
is transformed into
Light
Energy
Electrical Energy
is transformed into
Thermal
(Heat)
Energy
and
Mechanical
Energy
Chemical Energy
is transformed into
Thermal
Energy
and
Light
Energy
Kerosene Lantern
Electrical Energy
is transformed into
Mechanical
Energy
is transformed into
Wind
Energy
Thermal Energy
of steam
is transformed into
Mechanical
Energy
of the turbine
Electrical Energy
is transformed into
Light
Energy
of the turbine
Chemical Energy
is transformed into
Radiant
(Light)
Energy
and
Thermal
(Heat)
Energy
Chemical Energy
is transformed into
Radiant
(Light)
Energy
and
Thermal
(Heat)
Energy
Nuclear Energy
of fission
is transformed into
and
Solar
Energy
Solar Energy
is transformed into
Light
Energy
and
Thermal
(Heat)
Energy
Elastic (Potential)
Energy
is transformed into
Mechanical
(Motion)
(Kinetic)
Energy
Electrical
Energy
is transformed into
Heat Energy
Chemical Energy
is transformed into
Thermal
(Heat)
Energy
Biomass Furnace
Chemical Energy
of chewing food
is transformed into
Chemical
Energy
of digesting food
Chemical Energy
from digested food
Mechanical
Energy
such as running
is transformed into
Chemical Energy
is transformed into
Mechanical
(Kinetic or
Motion)
Energy
Chemical Energy
of exploding H
is transformed into
Mechanical
(Kinetic or
Motion)
Energy
of the rocket
Radiant
(Light)
Energy
and
Thermal
(Heat)
Energy
Chemical Energy
is transformed into
Mechanical
(Kinetic/Motion)
Energy
and
Thermal
(Heat)
Energy
Mechanical
(Kinetic or
Motion) Energy
of wind
is transformed into
Mechanical (Kinetic or
Motion) Energy
of the boat
Chemical Energy
in a biomass compost pile
is transformed into
Thermal Energy
Mechanical Energy
of bowing against violin strings
is transformed into
Sound 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 looking
into an person’s
ear.)
Mechanical Energy
as our eardrums vibrate
Sound Energy
that travels through the
matter that we call air.
Eardrum
(You are
looking
into an
person’s
ear.)
For us to be able to hear
the music, the sound
energy must be
transformed back into
Mechanical Energy
as our eardrums vibrate
Chemical Energy
(in gasoline)
is transformed into
Mechanical energy
(of the moving motorcycle)
Mechanical Energy
(of chewing food)
is transformed into
Chemical energy
(of digesting the food)
,
In a generator
Mechanical
Energy
is transformed into
Electrical energy
(that can be used to run a
machine)
, transforms
A generator inside a dam
Mechanical Energy
of falling water
Generator
into
Electrical
Energy
(that can be used
to run a
machine)
Turbine
Gravitational
Energy
pulls liquid water
downward
and is transformed
into
Mechanical
Energy
(when the falling water
turns the
blades of a turbine)
Turbine
Electrical Energy
(flowing through wires)
is transformed into
Radiant (Light) energy
In a home
Can you name ALL of the
Energy Transformations within this Nuclear Power Plant?
Uranium is in here.
Condenses water vapor
(gas) into water (liquid)
In a turbine ,
Mechanical
energy
is transformed into
(Movement of wind, steam,
or falling water)
Mechanical energy
(the spinning of the turbine)
Electrical Energy
is transformed into
A turbine
Makes
This
Turn.
Mechanical Energy
to make a motor turn
MOTOR
Gravitational
Energy
is transformed into
Mechanical Energy
as leaves are moved
from the high places in trees
to the lower ground
Gravitational
Energy
is transformed into
Mechanical Energy
as water droplets fall from
clouds to ground
Energy Transformation =
A change from one type of energy to another
Thermal Energy
is transforming into
Mechanical Energy
Gravitational
Energy
is transformed into
Mechanical Energy
in these waterfalls
Thermal Energy
is transformed into
Mechanical Energy
when surface water moves
into the air as water vapor
Chemical Energy
(of digesting food)
is transformed into
Mechanical Energy
(the ability to move
muscles)
Mechanical Energy
(Strumming the guitar strings)
is transformed into
Sound energy
(when the vibrating strings give out music)
Mechanical Energy
(Strumming the guitar strings)
is transformed into
Sound energy
from the vibrating strings
Electrical Energy
is transformed into
Sound energy
Electrical Energy
is transformed into
Heat energy
Nuclear Energy
is transformed into
Thermal energy
Electrical Energy
is transformed into
Heat energy
Nuclear Energy
is transformed into
Thermal
energy
Mechanical Energy
of the wind
is transformed into
Mechanical
energy
of the blades on
the wind turbine
Mechanical Energy
is transformed into
of the blades on
the wind turbine
Electrical
energy
Thermal
Energy
of steam
Mechanical
energy
is transformed into
in the spinning turbine
This fuel cell vehicle was driven by celebrities and
dignitaries in London, England
Mechanical
Chemical
Energy
in a fuel cell
energy
(Motion)
is transformed into
of a car
Radiant
(in this
case,
Solar,
Energy
is transformed into
Electrical
energy
is transformed into
Radiant,
in this case
Light,
Energy
Radiant
in this
case,
Solar,
Energy
>
Electrical
energy
>
Mechanical
Energy
(The car’s motion)
Radiant
in this
case,
Solar,
Energy
is transformed into
Electrical
energy
is transformed into
Radiant,
in this case
Light,
Energy
Electrical
Energy
is transformed into
Radiant
(in this case,
LIGHT)
Energy
Mechanical
Energy
of the spinning
generator
Electrical
is transformed into
Energy
Thermal
Energy
is transformed into
of steam
Mechanical
energy
in the turbine
Radiant energy
(Solar, in this case)
is transformed into
Chemical energy
(because the chemicals that
enter the leaf are changed
into different substances)
Chemical Energy
is transformed into
in the tail of the firefly
light energy
Radiant Energy
(Solar, in this case)
is transformed into
Chemical energy
(when the chemicals that entered
the leaf are changed into new
substances
during
photosynthesis)
Chemical Energy
(when chemicals in the glow sticks
combine to form a new chemical)
is transformed into
Light Energy
(when the sticks illuminate)
Photosynthesis
Radiant
(Solar)
is transformed into
Chemical Energy
(when carbon dioxide and water
react with the energy of sunlight
to produce something new:
oxygen and glucose food)
Chemical Energy
Stored in the battery
is transformed into
Electrical Energy
(as electrons are produced)
is transformed into
Sound Energy
(when the phone’s vibrating bell rings)
Electrical Energy
is transformed into
Thermal Energy
Electrical Energy
is transformed into
Mechanical
Energy
Motor
Radiant (Light)
Energy
Chemical
Energy
Electrical Energy
Mechanical
(Kinetic)
(Motion)
Energy
QUIZ
TIME!
What type of energy
cooks food in a
microwave oven?
ELECTROMAGNETIC ENERGY
What type of energy is
the spinning plate
inside of a microwave
oven?
MECHANICAL ENERGY
Electric Energy
is transformed into
Mechanical
Energy
Heat
Energy
When the explosive goes off, the
Chemical Energy
stored in the TNT/firecracker…
is transformed into
the surroundings as
thermal energy,
sound energy,
light energy, and
mechanical energy
Nuclear Energy
stored in the Transformer
is transformed into
Mechanical Energy
AKA Motion Energy
AKA Kinetic Energy
As the Transformer walks.
Chemical
Energy
Electrical
Energy
Sound
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!
These are energy transformations that end up
producing
FOSSIL FUELS,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Plants pass 10%
of their energy
Solar energy is
to animals
After death,
used by plants in
that eat them.
plants &
Photosynthesis
This food is
animals decay
and is stored
transformed
as chemical energy into chemical energy
in the animal.
Electricity
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Over millions of years Humans use
this decayed matter FOSSIL FUELS
is compressed into
as energy
the FOSSIL FUELS:
sources to
Coal, Oil, ,
get:
& Natural Gas
These are energy transformations that end up
producing
FOSSIL FUELS,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Plants pass 10%
of their energy
Solar energy is
to animals
used by plants in
After death,
that eat them.
Photosynthesis
plants &
This food is
and is stored
animals decay
transformed
as chemical energy
into chemical energy
in the animal.
Over millions of years
this decayed matter
is compressed into
the FOSSIL FUELS:
Coal, Oil, ,
& Natural Gas
Humans use
FOSSIL FUELS
as energy
sources to
get:
Electricity
These are energy transformations that end up
producing
BIOMASS FUELS FROM WOOD,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Energy from
the sun
is used by
plants in photosynthesis
and stored as chemical energy.
Electricity
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Wood from trees
can be burned
to release
heat and light
energy.
Humans use
BIOMASS FUELS
as energy
sources to
get:
These are energy transformations that end up
producing
BIOMASS FUELS FROM WOOD,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Energy from
the sun
is used by
plants in photosynthesis
and stored as chemical energy.
Wood from trees
can be burned
to release
heat and light
energy.
Humans use
BIOMASS FUELS
as energy
sources to
get:
Electricity
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
These are energy transformations that end up
producing
BIOMASS FUELS FROM DUNG,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Animals eat
plants and
store energy
Energy from the sun
from the
is used by
plants as
chemical energy.
plants in photosynthesis
Unused food
and is stored as chemical energy.
is passed out of the animals’
bodies as DUNG..
Electricity
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Dung
can be burned
to release
heat and light
energy.
Humans use
BIOMASS FUELS
as energy
sources to
get:
These are energy transformations that end up
producing
BIOMASS FUELS FROM DUNG,
which humans use as energy sources.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Animals eat
plants and
store energy
Energy from the sun
from the
is used by
plants as
chemical energy.
plants in photosynthesis
Unused food
and is stored as chemical energy.
is passed out of the animals’
bodies as DUNG..
Dung
can be burned
to release
heat and light
energy.
Humans use
BIOMASS FUELS
as energy
sources to
get:
Electricity
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
These are energy transformations that end up
producing
POWER FROM WIND,
which humans use as an energy source.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
The winds turn
turbines,
which produce
Electricity.
Energy from the sun
heats the atmosphere,,
causing winds..
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Humans use
electricity
From
WIND POWER
to produce:
These are energy transformations that end up
producing
POWER FROM WIND,
which humans use as an energy source.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Energy from the sun
heats the atmosphere,,
causing winds..
The winds turn
turbines,
which produce
Electricity.
Humans use
electricity
From
WIND POWER
to produce:
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
These are energy transformations that end up
producing
WAVE ENERGY,
which humans use as an energy source.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Energy from the sun
heats the atmosphere,,
causing winds..
Wind energy
causes
waves
In the
ocean
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Wave energy
causes turbines
to turn. These
turbines turn
generators.
Generators
produce electricity.
Humans use
electricity
From
WAVE POWER
to produce:
These are energy transformations that end up
producing
WAVE ENERGY,
which humans use as an energy source.
Drag and drop each picture under its description.
Sun
radiates
energy
to Earth
Energy from the sun
heats the atmosphere,,
causing winds..
Wind energy
causes
waves
In the
ocean
Wave energy
causes turbines
to turn. These
turbines turn
generators.
Generators
produce electricity.
Humans use
electricity
From
WAVE POWER
to produce:
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/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.
Sun
radiates
energy
to Earth
Energy from the sun
Is transformed into
electrical energy
within solar panels
(photo-voltaic panels).
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
Humans use
electricity
From
PV Panels
to produce:
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.
Sun
radiates
energy
to Earth
Energy from the sun
Is transformed into
electrical energy
within solar panels
(photo-voltaic panels).
Humans use
electricity
From
PV Panels
to produce:
Heat
and
Light
http://www.think- energy.co.uk/T hinkEnergy/11-14/acti vities/EnergyTrans.aspx
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).