Archive for May, 2010

Electromagnetic Spectrum

Monday, May 24th, 2010

800px-EM_Spectrum3-new from wikimedia

Log on to this great site.  Read through the information and general background on the home page.  Then click through the different parts of the spectrum from radio waves to gamma rays and discover how each is made as well as their uses and dangers. 

Summarize the information in any format you choose (word document, prezi, glogster, powerpoint, podcast, vimeo, animoto).  Enjoy!

Here are some examples of the great work you have produced: EMS-Bianca    Nish.The Electromagnetic Spectrum!    Sandy.The Electromagnetic Spectrum

Lenses glogs

Thursday, May 20th, 2010

Canon FL 55mm f1.2 by Arkku on flickr

You can check out each other’s work by clicking on the links below.  You can learn from each other!  Feel free to give each other feedback by leaving a comment.

  • Sam                                 Grace
  • Karenina                       Daniel
  • Justin                             Tyler
  • Mumba                          Carlo
  • Danilo                             Hiram
  • David                              Timmy
  • Anushay                        Kevin
  • JP                                     Davis
  • Adrian                            Ethan
  • John                                Stefan
  • Sandy                              William
  • Bianca                             Agustin
  • Trix                                  Ines
  • Sera                                  Gaby
  • Gabby                             Juliana
  • Nish                                 Emily

Reflection

Tuesday, May 18th, 2010

car side mirror reflection by just_a_name_thingie on flickr

You are going to investigate reflection in a plane (flat) mirror.  You will use the apparatus provided to collect data to support your findings.  You will be required to present the data in tables, and then to process it appropriately.  Make sure you look at the previous lab on refraction, and don’t make the same mistakes! 

Here is an outline from Mr. Duckworth that explains in a bit more detail what you need to hand in.  REFLECTION LAB

Application of lenses

Thursday, May 13th, 2010

telescope by Waifer X on flickr

Here are links to a couple of sites on ray diagrams.  This first one is factual.  This one is interactive, and covers the different types of image obtained when you place your object various distances from the the lens. 

Make sure you know the difference between a real and virtual image, an inverted and an upright image, and a magnified and diminished image.

Now that you know all about refraction, and how light bends as it passes through lenses, it’s time to take a look at where we use lenses in our daily (or not so daily) lives.  Microscopes, telescopes, cameras, binoculars, all contain at least one lens.  Your task is to select one application of lenses and do some research on it.  Prepare a glogster poster of your findings.  You must explain what type or types of lenses are present, what refraction has to do with your chosen application, and how it works.  Follow the links here to help get you started.