TEST ALERT - This Thursday 05/01/08

This Thursday an assessment (test) will be given on the topic of light waves. The topics to be included are:

• Light emission by atoms ("How Light is Made in Atoms" answers)
  
• Refraction of light (page 504)
  
• Solving for frequency and wavelength using the wave equation (page 525)
  
• Why certain objects reflect certain colors (page 535)
  
• The different types of electromagnetic waves (page 526-527)
  

Notice the pages are given so you may study these topics tonight. We also had many discussions/notes about these topics that you should review to prepare for the test. A tutorial session will occur Wednesday after school to review and prepare for the test at 3:35.

TEST ALERT - This Thursday 04/17/08

This Thursday we will have a test about Mechanical Waves in Physics. To prepare for this test you have been given a study guide. Completing this study guide will help you review the ideas. To prepare for this test further I recommend that you read and reread the following pages in your blue physics textbook:

In Chapter 20, pages 434-447
In Chapter 20, pages 456, 457, 459-460, and 469

To be extra prepared, the chapter review on pages 450-452 will be helpful.

ALERT - Test Thursday

We will be having a re-assessment related to speed calculations and experimental design Thursday, April 3rd. We have recently reviewed speed calculations involving wave speed and have been discussing lab variables at different times throughout the year. Since every science class requires an understanding of experimental desig, students are being re-assessed to be assured that they have retained these understandings. Students received a review packet to prepare them for this assessment on Tuesday and should complete those questions to be ready for the re-assessment.

Mechanical Waves Websites

Here are some websites that will help direct your research for questions and answers about waves.

General Waves Information:
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/wavestoc.html
http://www.glenbrook.k12.il.us/gbssci/phys/Class/sound/soundtoc.html
http://www.gcsescience.com/pwav.htm
http://www.headwize.com/tech/elemnts_tech.htm

Applications of waves:

Ultrasound:
http://www.physics247.com/physics-tutorial/ultrasound-physics.shtml
http://health.howstuffworks.com/ultrasound1.htm

Water waves and Tsunamis:
http://www.bbc.co.uk/schools/gcsebitesize/physics/waves/water_wavesrev1.shtml
http://www.seafriends.org.nz/oceano/waves.htm
http://science.howstuffworks.com/tsunami1.htm

Sonar and Echolocation:
http://www.ccmr.cornell.edu/education/ask/index.html?quid=260
http://www.exploratorium.edu/theworld/sonar/sonar.html
http://science.howstuffworks.com/bat2.htm