Exploring the Different Forms of Energy: Understanding Kinetic and Potential Energy

you boys and girls in the classroom should be very interested in uh science about in energy because because energy

is everywhere and uh I'm going to show you a little bit of energy right now build the sciencey build the science

guide build the science guide science Rules science inertia is a property as

matters the Science Guy tus seconds science brought to you by

invigorates energy for Champions when we do something like open a door we're using Energy electrical

energy makes this door go [Music] up up

well I I can open the door another way with another form of energy the energy of my

muscle see energy comes in all different forms like sound is energy heat is

energy falling things have energy when we move our muscles that takes energy electricity is energy and

energy can be converted from one form to another energy is what makes things go run or happen so let's make something

happen say with this big box of water see when we filled this box we lifted the water lifted the water lifted the

water up here and when we did we gave it some energy think about it you have to work to lift a bucket of water so when

you lift it the energy of lifting is stored up here I'll prove it to you when we open this B water flows downhill and

runs this little propeller the propeller spins and runs a little generator which makes a small amount of electricity it

runs through this wire and makes this needle move some of our electricity is made by Falling Water huge

dams that have huge propellers when energy is stored we call it potential potential potential energy

it has the potential to do something when it's moving we call it kinetic kinetic kinetic energy kinetic means

moving now this setup converts the potential energy that we put into the water by lifting it to a form of kinetic

energy the energy of the flow and the flowing water makes electrical energy kinetic energy was converted to

electrical energy energy was changed from one form to another not bad you know I'm kind of out of an

energy now what would happen if suddenly there were no energy in the world well first of all there would be no

electricity so the would day and then the wind wouldn't blow anymore so the clouds would stop moving and the flag

would stop blowing would be there would be no more movement the cars wouldn't move as a matter of fact all the lights

would go out cold dark dead world but lucky for us we don't have to worry about that because energy is everywhere

energy is everywhere hey friends are you like a lump on the plastic covered couch all potential energy do you dream of

someday taking charge and fulfilling the kinetic energy check this out it's an energy

demonstration as I wind up this propeller the rubber band stores energy and that energy can be released make the

airplane [Applause] fly yeah right here I have some vinegar

and some baking soda and I'm going to mix them together and see what happen make a rocket and you can see how

energy makes things go [Music] just add a half a cup of vinegar to a

half a cup of water then put a teaspoon of baking soda onto a coffee

filter then roll the coffee filter up and twist the ends really tight

[Music] now for the coffee filter in the bottom of the

bottle put the cork on as tightly as you can and hit the [Music]

dirt okay put the top on Shake It Up popped right off popped right off popped right

off the baking soda and vinegar caused a chemical reaction that builds up pressure inside the bottle the cork pops

off because the chemical energy changed to moving energy energy makes things move it made that cork move off before

we had a chance to show it to you it makes things go makes things move it changes form it's energy energy energy

energy so I think that we might at this time say that energy makes things move energy makes things go makes things

[Music] move energy makes things move we

Howdy Folks I'm Ken edct your host and I'm here with the AL for energetic violet light you all know the rules we

spin the wheel of energy and we change one type of energy into another type okay Violet convert some chemical energy

into kinetic energy and give the wheel a [Music] [Applause]

spin now that's what call Sound Energy I think you can see why we call him Mr sound energy he's like that all

day long we're just going to go we're not going to rehearse good love it okay here

we go here we go right now this bowling ball has

energy it's not moving but it's got energy please consider the following you ready

3 2 [Music] 1 it looked like it was going to smack

me right in the head didn't it I mean it's a bowling ball it would knock me pretty good but it'll never hit you in

the head because when we pulled the bowling ball back from the middle we gave it potential energy when we let go

of it it had kinetic energy the kinetic energy will never be bigger than the potential energy it's only going to have

as much energy as we gave it when we pull it up here from the center it works every time let Let's uh you give it a

push or [Music] something energy can be changed from one

form to another electricity is a form of energy you're using some right now now but do

you know where electricity comes from do you oh come on a lot of it comes from the heat

released by burning coal the coal makes heat the heat makes Steam and the steam is running this small turbine the

turbine is actually an electrical generator and we can read the electricity on this gauge this is the

same way it works in a real coal plant except there's more coal More Steam bigger generators and more electricity

we can use the energy of falling water to make electricity the falling water spins a

giant turbine it's like a big Paddle Wheel and that runs an electric generator that makes electricity so you

can watch the [Music] show nuclear power comes from atoms

inside the atom is the nucleus the middle now some atoms have nuclei that are so big and heavy they're always

falling apart we bring these atoms near each other they get hot so hot that we can make Steam and then electrical power

there's energy in the wind too wind turns these propellers they're windmills the spinning blades turn electrical

generators we're converting the energy of moving air wind directly into electricity the sun is beaming energy to

the Earth all day and all night so we panels made of the same material as microchips change sunlight directly into

electricity well now you know where electricity comes from you realize that you got to conserve it only use it when

you need [Music] [Applause]

it first came the [Music] dam a series of great barriers that

eventually will trans a waterfall higher than Niagara Grand Dam Bill ways begin to flow power to turn the wheels

of americ this is Grand Dam Grand

[Music] Dam I'm Jane Rollins I'm a dam operator the water is behind the dam

about 100 m above us and that water rushes down through these water pipes called pin stocks down

to drive the turbin we're inside the pin stock normally this is filled with

water this spiral case looks like a giant snail shell and it goes around the turban this is the turbine it's a giant

propeller the Rushing Water up above creates thousands of tons of energy to make this turbine spin the

spinning turbine turns these generators which produces electrical energy and electrical energy may be

turned into light energy or heat energy or even back into motion

energy this is a laser it converts electrical energy into heat energy by making gas molecules vibrate at the same

speed as heat waves now this laser has only about 500 watts that's only as much as five

average everyday reading lights but the energy is so concentrated it's in such a tiny space that it's able to burn right

through this plywood it's energy being converted from one form to another and then Mak something happen Isn't that

cool I mean uh hot who knows what potential energy lurks in the heart of things the

[Music] [Applause] Transformer

take a look at this energy experiment of science take a look these are big heavy rubber bungee cords and this is a

sandbag it's a heavy weight so the weight holds the center of the bungee cord still when the barrel rolls they

twist storing energy in the rubber watch when I give it a kick it's storing energy see the weight

holds the middle of the bungee cords tight so they wind up the energy from the kick is stored in the bungee cord as

it rolls back we get that energy back as kinetic energy [Music]

see [Applause] the motor which moves this toy changes

the energy stored in the Toy's batteries into motion [Applause]

energy [Music] this pool is just uh

energy that's stuck behind the waterfall and then it goes down into here this is the valve that lets the

water go down into the pipes these are the pipes that the water rushes down rushes down to the powerhouse

and it hits the turban this turbine changes the energy from plain old water into

electricity my dad built this power station on this stream so we take the energy from the

water and produce it into [Music] electricity

one of the big sources of energy that we use is oil well oil is a fossil fuel fossil means something that we've dug

up we don't really dig it up we Pump It Up Now oil is pumped out of the ground now this shaft goes down about 500 m

every time this rod goes up and down it brings up a little bit of oil goes out a pipe here to a big tank and eventually

it might wind up in your car now that much steel is heavy so we have these big counter weights that keep

the thing in Balance it's called a grasshopper pump cuz it kind of looks like

grasshopper kind of anyway oil is a chemical that we combine with oxygen in the air to make heat it's a source of

energy the energy stored in this wood is changed into heat and light energy when the logs are

[Applause] burned we store energy in ourselves by eating food energy changes form in your

body all the time as food is being broken down into fuel some of that energy turns into heat watch

smear a coin with some cold water then smear the top of a glass bottle that's already been

refrigerated now put the coin on top of the bottle put your hands around it for

about 30 [Music] seconds who it looked did you see

that see even when we're just is chilling out our bodies are changing energy but where does this energy come

from my body produced enough heat to warm the air inside the bottle and cause the coin to jump jump jump we get energy

from the foods we eat energy is cool the energy we get from food began as light energy from the

Sun [Music] right now I'm using a lot of energy

chemical energy I get for my [Music] food only about 40% of it is used to

move around 60% of it turned to heat [Music]

that's why you get so hot when you [Music] exercise energy is

[Music] everywhere energy

energy energy energy

energy energy energy energy energy energy energy

energy energy energy and in in energy because some of

you are going to be using energy using energy using energy energy is needed to help things move and grow and

[Music] grow you from Quantum toys turning one kind of eny into

another energy transform there your energy Pals better get some today energy energy is what makes things go

run or [Music] [Applause]

happen like energy is what makes this bike roll now energy can be converted from one form to another and that's what

happens when we convert chemical energy and the food we eat into the energy of movement to make the bike roll now

whenever energy is converted from one form to another a little bit of it ends up as heat let's take a look at heat

energy and see what heat has to show us [Music] it's something that I feel when I eat a

magga meal I know it's working F when I see a neon sign let's be jumping R I'm a human CL plan moves like waves in the

sea I'm talking energy in the sun there's a burning sensation cranking energy that we call radiation plug in

this mic get electricity changes it B but it's still energy energy makes things go energy makes

things run energy makes things mov energy makes things fun I stop it get hot when I dance on my feet energy

changes fall until becomes heat listen to my thoughts here's why you're here sound is energy that shakes your ear

picking up energy coming from the Bas drum moving lots of air It's a Good Vibration sound dies out as the waves

become Heat just another form of energy energy makes things go energy makes things run energy makes things move

energy makes things [Music] [Applause]

fun these big black bungee cords are storing energy when we let go it will become

[Music] kinetic well that's our show yeah hope it was contic enough for

you hope it lived up to its full potential see you produc in association with the

National Science Foundation microwaves make water get hot hey maybe I could put this on darl listen I put

this on this is all and I go like this microwaves are energy and as the microwaves go through water molecules

they make the water molecules rub on each other like this and that's how microwaves pop

popcorn the water molecules turn to steam and they explode making the popcorn kernels turn inside out now the

molecules don't explode just the kernels molecules boiling turning to heat it's popping it's popping it's popping the

water is turning into steam steam's expanding blowing the [Music]

kernel half a cup of vinegar to a half a cup of water then put a teaspoon of baking soda

onto a coffee filter then roll the coffee filter up and twist the ends really

[Music] [Music] tight now put the coffee filter in the

bottom of the bottle put the cork on as tightly as you can and hit the

[Music] dirt okay put the top on Shake It Up and it popped right off it pop right off it

popped right off the baking soda in vinegar caused a chemical reaction that builds up pressure inside the bottle the

cork pops off because the chemical energy changed to moving energy energy makes things move it made that cork move

off before we had a chance to show it to you it makes things go makes things move it changes form it's energy energy

energy energy so I think that we might at this time say you boys and girls in the classroom to be very interested in

uh science about in energy because because energy is everywhere and uh I'm going to show you a little bit of energy

right now science the science

guide build the science guide science Rules science inertia is a property of

matters Bill n the Science Guy Bill b bill t- 7 Seconds science brought to you by

invigorates energy for Champions when we do something like open a door we're using Energy electrical

energy makes this door go [Music] up

up well I I can open the door another way with another form of energy the energy of my muscles

see energy comes in all different forms like sound is energy heat is

energy falling things have energy when we move our muscles that takes energy electricity is energy and

energy can be converted from one form to another energy is what makes things go run or happen so let's make something

happen say with this big box of water see when we filled this box we lifted the water lifted the water lifted the

water up here and when we did we gave it some energy think about it you have to work to lift a bucket of water so when

you lift it the energy of lifting is stored up here approve it to you when we open this B water flows downhill and

runs this little propeller the propeller spins and runs a little generator which makes a small amount of electricity it

runs through this wire and makes this needle some of our electricity is made by

Falling Water huge dams that have huge propellers when energy is stored we call

it potential potential potential energy it has the potential to do something when it's moving we call it kinetic

kinetic kinetic energy kinetic means moving now this setup converts the potential energy that we put into the

water by lifting it to a form of kinetic energy the the energy of the flow and the flowing water makes electrical

energy kinetic energy was converted to electrical energy energy was changed from one form to another not

bad you know I'm kind of out of an energy now what would happen if suddenly there were no energy in the world well

first of all there would be no electricity so wouldn't they and then the wind wouldn't blow anymore so the

clouds would stop moving and the flag would stop blowing would be there be no more movement the cars wouldn't move as

a matter of fact all the lights would go out cold dark dead world but lucky for us we don't have to worry about that

because energy is everywhere energy is everywhere hey friends are you like a lump on the plastic covered couch all

potential energy do you dream of someday taking charge and fulfilling the kinetic energy

you check this out it's an energy demonstration as I wind up this propeller the rubber band stores energy

and that energy can be released make the airplane [Applause]

[Music] fly here I have some vinegar and some baking soda and I'm going to mix them

together and see what happens make a rocket and you can see how energy makes things

[Music] go just that energy makes things

move energy makes things go makes things [Music] move energy makes things move

we Howdy Folks I'm k edct your host and I'm here with the a for energetic violet

light you all know the rules we spin the wheel of energy and we change one type of energy into another type okay Violet

convert some chemical energy into kinetic energy and give the wheel a [Music]

[Applause] spin now that's what I Sound Energy I think you can see why we call

him Mr sound energy he's like that all day long aren't you we're just going to go we're not

going to rehearse good love it okay here we go here we

go right now this bowling ball