Energy Transformations Energy is Review: What IS Energy? the ability to do work or make a change...

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.

http://www.srpnet.com/education/tour/




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)


Thermal Energy

What types of energy are shown below?

Mechanical and Thermal Energy(Thermal due to friction)


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

http://images.google.com/imgres?imgurl=http://www.dansmc.com/spnorm.jpg&imgrefurl=http://www.dansmc.com/sparkplugs1.htm&h=445&w=578&sz=58&tbnid=jvhCGCbL8GoJ:&tbnh=101&tbnw=132&hl=en&start=2&prev=/images%3Fq%3Dspark%2Bplugs%26svnum%3D10%26hl%3Den%26lr%3D%26rls%25

How a Flashlight Works

http://www.harcourtschool.com/activity/science_up_close/302/deploy/interface.html

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

http://www.childrensuniversity.manchester.ac.uk/interactives/science/energy/whatisenergy.asp

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

http://www.google.com/imgres?imgurl=http://www.tvakids.com/electricity/images/plug3.jpg&imgrefurl=http://www.tvakids.com/electricity/powersafety.htm&usg=__KO-Z1y3M6ByyBtWw7sQmFaGSmCE=&h=121&w=75&sz=2&hl=en&start=18&zoom=1&itbs=1&tbnid=73bJdqpCzf5AvM:&tbnh=89&t

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

http://www.fw.vt.edu/dendro/forestbiology/photosynthesis.swf



http://www.phschool.com/science/biology_place/biocoach/photosynth/overview.html

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


Chemical Energy

Thermal (Heat) Energy

and

is transformed into

Electrical Energy

Thermal Energy

is transformed into


Chemical Energy

andThermal

(Heat) Energy

is transformed into

Electrical Energy

Light Energy

is transformed into

Electrical 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


Chemical Energy


and

is transformed into


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


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



and

is transformed into

Mechanical (Kinetic/Motion)

Energy

Chemical Energy


and

http://upload.wikimedia.org/wikipedia/commons/1/1f/Virgin_Hot_Air_Balloon.jpg

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


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


is transformed into

as leaves are movedfrom the high places in treesto the lower ground

Mechanical 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


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


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


Chemical Energy


Electrical 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


Solar energy isused by plants inPhotosynthesisand is stored

as chemical energy




FOSSIL FUELS,which humans use as energy sources.


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.


Energy from the sun

is used byplants in photosynthesis

and stored as chemical energy.



BIOMASS FUELS FROM WOOD,which humans use as energy sources.


Humans useBIOMASS FUELS

as energysources to

get:


Dung can be burned

to release heat and light

energy.


Energy from the sun is used by

plants in photosynthesis and is stored as chemical energy.



BIOMASS FUELS FROM DUNG,which humans use as energy sources.


Humans useBIOMASS FUELS

as energysources to

get:


Animals eatplants and

store energyfrom theplants as

chemical energy.Unused food

is passed out of the animals’bodies as DUNG..


Energy from the sun heats the atmosphere,,

causing winds..



POWER FROM WIND,which humans use as an energy source.


Humans useelectricity

FromWIND POWER

to produce:

Heat and Light

Heat and Light

The winds turnturbines,

which produceElectricity.


Energy from the sun heats the atmosphere,,

causing winds..



WAVE ENERGY,which humans use as an energy source.



FromWAVE POWER

to produce:

Heat and Light

Heat and Light

Wind energycauseswavesIn theocean

Wave energycauses turbinesto turn. Theseturbines turngenerators.Generators

produce electricity.


Energy from the sun Is transformed intoelectrical energy

within solar panels(photo-voltaic panels).


These are energy transformations that result in

ELECTRICITY,which humans use as an energy source.



FromPV Panels

to produce:

Heat and Light

Heat and Light


Energy from the sun Is transformed intoelectrical energy

within solar panels(photo-voltaic panels).


These are energy transformations that result in

PHOTOVOLTAIC (PV) ENERGY,which humans use as an energy source.



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).

Energy Transformations Energy is Review: What IS Energy? the ability to do work or make a change...

Documents

Transcript of Energy Transformations Energy is Review: What IS Energy? the ability to do work or make a change...