Posts Tagged ‘heat’

How is heat transferred?

Friday, September 24th, 2010

Thermal fluid dynamics by Pro-Zak on flickr

This week we’ll be learning about the 3 different processes of heat transfer: CONDUCTION, CONVECTION and RADIATION.  To help us, we’ll be talking soccer and basketball – watch this space!

Here is a brainpop video to watch.  Some questions to think about while watching:

  • Can you explain which contains more heat: a glacier or a lightning bolt? 
  • Can you explain why food cooks faster with glassware than metalware?
  • Can you explain how curtains keep a room warmer at night?
  • Can you explain how winter hats, jackets and blankets keep us warm?
  • Can you explain the picture in this post?

The powerpoint used in class is here: Topic 03 – Thermal Physics  The text is a little advanced for G9, but the images are good.

And if you’re feeling really clever, perhaps you can make a rap like this one to explain heat transfer!

To find out whether you’ve really understood the applications of heat transfer, you will be given a challenge.  See the attachment to read more 🙂  Have fun! Heat Transfer Patent activity and rubric

And here is a link to the Integrated Science blog which gives you some more resources.

Specific heat capacity

Monday, September 13th, 2010

Flames 4 ghost of fire by Edson Martins on flickr

You could probably tell me what each of the words in the title to this post mean individually, but what does “specific heat capacity” mean when we put them all together?  Here’s a presentation we will use to find out a bit more about it.  Thanks to Mr Hobbins for producing it.   Specific-Heat-Capacity

Here is the handout with tons of practice questions: Specific-heat-Capacity-questions

We’ll come to an understanding of how heat (a form of energy) is different from temperature

And we’ll do a lab where we compare different types of fuel to find out which is most efficient.  Comparison of fuels lab

Heat transfer

Tuesday, January 12th, 2010
Thermal Fluid Dynamics by Pro-Zak on flickr

Thermal Fluid Dynamics by Pro-Zak on flickr

This week we’ll be learning about the 3 different processes of heat transfer: CONDUCTION, CONVECTION and RADIATION.  To help us, we’ll be talking soccer and basketball – watch this space!

Here are some videos to help demonstrate:  Bill Nye 1, Bill Nye 2, Bill Nye 3

You might want to try answer the questions on this worksheet courtesy of Mr Boulton while watching: Heat Transfer – Questions For Understanding

To find out whether you’ve really understood the applications of heat transfer, you will be given a challenge.  See the attachment to read more 🙂  Have fun!  Heat Transfer Patent office modified version

The powerpoint I used in class is here: Topic 03 – Thermal Physics  The text is a little advanced for G9, but the images are good.

Specific heat capacity

Thursday, January 7th, 2010
light the match by bikini sleepshirt on flickr

light the match by bikini sleepshirt on flickr

We’ll be looking at heat energy a little more closely and understanding it’s relationship to temperature.  This will lead us on to something called specific heat capacity.  What on earth is that?  Check out this presentation by Mr Hobbins: Specific Heat Capacity

Here is the worksheet we’ll go over in class: Specific heat Capacity questions

We’ll also be doing a lab where we compare different fuels to see which is more efficient.  Different groups will test different fuels, and then pool the data into the following spreadsheet. Comparison of fuels table and graph template

9H Dickinson Copy of Comparison of fuels table and graph template

9D Dickinson Copy of Comparison of fuels table and graph template

Block A Data FUELS heat capacity LAB

Block D Data FUELS heat capacity LAB

For homework you will be required to print out a copy of the table and graph, and then write up your conclusion.  You should also highlight sources of error in the experiment and suggest sensible improvements or alternatives.  This will be due on Friday 15th January.