Visualizing open and closed pipes

Watch the video and look at the animations found at

http://www.phys.unsw.edu.au/jw/flutes.v.clarinets.html


1.  Be able to tell me what a harmonic is  and what a sound wave looks like.


Take a look at the link at

http://www.physicsclassroom.com/class/sound/U11L5a.cfm


READ the first three paragraphs and the last three paragraphs.


We will be discussing about instruments at 12:45

ITSI-SU Waves

Today, we will be going back to itsi-su, a site we have visited before.   You must use an individual computer today.

http://itsisu.portal.concord.org/home


Please make certain you complete the pretests


Waves
Light and Matter

and the Waves and Interference activity.

Testing Your Mousetrap Car

 

Take a picture of you and your mousetrap car.

• the MA of the wheel/axle, 
• the MA of the mousetrap setup, 
• how far your car went (less than 5, less than 10, greater than 10), 
• what you learned, and 
• what you would change if you did it again.  

This should be between 3 and 5 paragraphs, and should show the dimensions you measured....

Mousetrap Car testing moved to Monday

Hey everyone.  I am missing the Friday fiesta due to back issues  :(, and that means you ALL SHOULD BE READY with your vehicle on Monday at the beginning of class.   If you are not ready to go by then, you will be doing your testing after school.

Click to Run

This activity deals with the concept of the skater dude and his own potential and kinetic energy.   You need to get a partner (Christine may pair you up) and complete this activity as a pair.  If you are letting your partner do all the work, you will receive a zero.  :(

Activity 1

Activity 2

HAND IN YOUR COMPLETED WORK AT THE END OF CLASS, PLEASE.   

Understanding Mechanical Advantage

What machines will a mouse trap car have?  Well, you need a body, wheels, and a mousetrap.

The mousetrap is a lever.  What type?  Does this make things faster or easier?







Here, we have two machines (3rd class lever and a wheel and axle) with an AMA less than 1.  What does this do for the racer?   How can we maximize this factor for the wheels?

Compound Machines

Go through http://edheads.org/activities/odd_machine/frame_loader.htm and keep track of the number of questions you get correct.


Watch this video

Hang Time Video

  Please Watch


Another video voiceover: http://www.youtube.com/watch?v=dg5AuYCsg98&feature=related