access follow up spring 2012 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
ACCESS Follow-Up Spring 2012 PowerPoint Presentation
Download Presentation
ACCESS Follow-Up Spring 2012

Loading in 2 Seconds...

play fullscreen
1 / 29

ACCESS Follow-Up Spring 2012 - PowerPoint PPT Presentation


  • 78 Views
  • Uploaded on

ACCESS Follow-Up Spring 2012. Thermal Energy and its Applications. February 7, 2012. WELCOME BACK. So Far we have investigated… Density Forces (Contact and Non Contact) Motion Energy (Mechanical and Thermal) Details of the Day – Reviewing and Applying the Content

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'ACCESS Follow-Up Spring 2012' - fathi


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
access follow up spring 2012

ACCESS Follow-UpSpring 2012

Thermal Energy

and its

Applications

February 7, 2012

welcome back
WELCOME BACK
  • So Far we have investigated…
    • Density
    • Forces (Contact and Non Contact)
    • Motion
    • Energy (Mechanical and Thermal)
  • Details of the Day – Reviewing and Applying the Content
  • Equipment Loan Program – CCS and TSH
  • PLC Info
hot hands
Hot Hands?
  • What is your body temperature?
  • Core body temperature is 98.6 oF
  • Or 37 oC
that s cool or is it
That’s Cool – Or Is It?

It’s all Relative!

Warm

Hot

Cool

Cold

temperature
Temperature
  • A measure of the average kinetic energy of the particles in a substance.
  • A molecular speedometer
the state of things
The State of Things…

Bose-Einstein Condensate

Solid

Gas

Liquid

Plasma

Low

High

ENERGY

stations
Stations
  • 1 – Shaq vs Susie
  • 2 – Warm Clothes
  • 3 – Sock It To Me!
  • 4 – What color shirt should I wear?
  • 5 – Reason for the seasons
  • 6 – Heating land and water
  • 7 – Cooling land and water
  • 8 – Mixing warm and cold water
station 1 shaq vs susie
Station 1 – Shaq vs Susie
  • Who do you think cools faster

—Shaq or Susie?

thermal energy
Thermal Energy
  • A measure of the total kinetic energy of all the particles in a material
  • More molecules = more thermal energy

T=95oC

T=100oC

more thermal E

less thermal E

station 2 warm clothes
Station 2 – Warm Clothes
  • Do mittens make heat or hold heat in?
  • What is difference between thermal energy and heat?
slide12
Heat
  • Heat is a transfer of thermal energy from an object at a higher temperature to an object at a lower temperature.

T=95oC

T=100oC

Heat transfer

more thermal E

less thermal E

station 3 sock it to me
Station 3 – Sock it to me!
  • Which type of sock material will keep you warmer?
  • Cotton, down, nylon, polypropylene, orlon, silk, and wool.
insulators conductors
Insulators/Conductors
  • A thermal conductor transfers heat well.
  • A thermal insulator slows down the transfer of heat.
station 4 clothing colors
Station 4 – Clothing Colors
  • What color shirt should I wear to keep warm?
sunlight
Sunlight

The Electromagnetic Spectrum

* What comes from our Sun?

station 5 reason for the seasons
Station 5 – Reason for the Seasons
  • Why is there such a large temperature change between summer and winter?
slide19

SUMMER

  • Earth’s axis is tilted 23.5 o
  • Summer
    • N. Hemisphere is oriented more toward sun
    • Sun rises higher in the sky
    • Sun is above the horizon longer
    • Sun’s rays strike the ground more directly
slide20

WINTER

  • Earth’s axis is tilted 23.5 o
  • Winter
    • N. Hemisphere is oriented more away from sun
    • Sun rises lower in the sky
    • Sun is above the horizon less
    • Sun’s rays strike the ground more indirectly
station 6 heating land and water1
Station 6 –Heating Land and Water

On a sunny day at the beach…

  • Air above land warms faster than air above water. (Hot air rises because it is less dense than the surrounding air so that gravity’s pull is less than the buoyant push.)
  • On a sunny day at the beach, the wind will usually blow from the _______________ to the _______________. This is called a _________ breeze.

Sea

Land

Sea

station 7 cooling land and water1
Station 7 –Cooling Land and Water
  • Air above water is warmer than air above land.
  • As evening falls, the wind will shift and blow from the _______________ to the _______________. This is called a _______________ breeze.

Evening at the beach…

Land

Sea

Land

heat capacity
Heat Capacity
  • Heat Capacity (C) is the amount of heat required to raise the temperature of a substance by one degree Celsius
  • Water has high heat capacity – takes more heat and more time for its temperature to rise.
  • It also means that it takes longer for the temperature of water to decrease

Animation

station 8 mixing warm and cold water1
Station 8 – Mixing Warm and Cold Water
  • Specific Heat is the heat capacity of the substance per gram of the substance. The specific heat of water is 4.18 J/g° C
  • Heat lost (hot water) = heat gained (cold water)
slide28

Inquiry as an Evolutionary Process

Role of the Teacher/Role of the Student

new terms
New Terms
  • Thermal Energy
  • Temperature
  • Heat
  • Heat Capacity
  • Specific Heat
  • Insulators
  • Conductors
  • Conduction
  • Convection
  • Radiation