A Rap of Conduction, Convection, and Radiation done for a school project
Idea & Song from: http://www.teachertube.com/viewVideo....
Still having trouble remmebering? Here is a mnemonic:
1. Conduction has the word "duck" in it, so the molecules have to duck each other. Heat by collisions.
2. Convection has a "vec" in it, which sounds like the beginning of "vacation," which reminds me of the beach, which reminds me of fluids. Heat by fluid movement.
3.Radiation sounds like radio, which is a electromagnetic wave. Heat by EM waves."
There are three ways that heat can travel
But it can travel in any direction
From the sun it moves to the earth, quick as a shadow
And disperses in radiation, conduction, and convection
First things first, let's discuss heat
What it is before you pay for it to warm your feet
Heat is the energy that flows when atoms and molecules move
It diffuses out toward coolness
Temperature is the measurement of
The average motion of these atoms
And molecules in the atmosphere
So there have it
Now, the first way of transportation of heat energy is radiation
Like sound waves from your radio stations
Filling the empty space around you
Your radiator warms you, but don't start a fire now, I warned you
Heat is going through radiation from the sun
Before it burns you from 93 million miles away
To re-radiate this heat is what the earth does for you
This is survival what this heat is going through
Before it rises to the sky and it's gone so...
Conduction is the second method on my list
You can feel it like a hot pot on your fist
With the handle gripped I bet you'd rather grab a candle lit
'Cause it's heat through conduction that causes this
Atoms in matter in a fixed position vibrate when heated
Like a pan in the kitchen
Transmit the heat energy to atoms next to them
That are cooler than they are to cause equilibrium
To even out the temperature the heat has to travel
Up the spoon in your tea in the morning with your bagel
It might burn your hand, but just learn the land of
conduction heat energy until you understand
The earth gains little from conduction
It's mostly radiation that helps us function and keeps us warm
It's just another way for heat to move
But now let's move on to method three to prove...
Convection is the movement of heat in liquids and gasses
To even out the temperature fastest
This process is called diffusion
It's a flow of particles cold and hot in a fluid
If you're not listening, then stop what you're doing
'Cause this final mode that heat can move in
And this affects you everyday
It's the breeze at your back and the wind at your face
When heat reaches the earth it rises at a rate
With the air in the place and it moves up till it cools
Trillions of molecules together
Make up the weather that we see on the news
It's how they measure the pressure of the air and the temperature
But convection is how it got there in the atmosphere
So don't be scared. Heat moves in three ways
So we made things clear, it's like...
Here are some more resources that can help you understand the "3 ways of energy transfer":
My memory trick--
Conduction has the word "duck" in it, so the molecules have to duck each other. Heat by collisions.
Convection has a "vec" in it, which sounds like the beginning of "vacation," which reminds me of the beach, which reminds me of fluids. Heat by fluid movement.
Radiation sounds like radio, which is a electromagnetic wave. Heat by EM waves.
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Nonetheless, it is true that a single term conceals a variety of meanings. Hence the need for a preliminary clarification. Driven by the desire to discover the ultimate truth of existence, human beings seek to acquire those universal elements of knowledge which enable them to understand themselves better and to advance in their own self-realization. These fundamental elements of knowledge spring from the wonder awakened in them by the contemplation of creation: human beings are astonished to discover themselves as part of the world, in a relationship with others like them, all sharing a common destiny. Here begins, then, the journey which will lead them to discover ever new frontiers of knowledge. Without wonder, men and women would lapse into deadening routine and little by little would become incapable of a life which is genuinely personal.