Wed., October 31, 2012

Physical Science A

Bellwork:
    1.  Explain how the speed of a wave is affected by the medium that it is traveling through.

    2.  If the frequency of a wave is 20 Hz and the wavelength is 40 meters, what is the wavespeed?

Grab a whiteboard.  We will go over the wavespeed problems.  If you have a question on how the solution was determined, please stop me so we can go over the problem.

Discuss Simple Harmonic Motion and Wave Interactions.

Demo: Simple Harmonic Motion

We will also have a quiz on Tomorrow over wave speed.  Be sure to study!

HW: Please make sure you have read section 3.  Also, please do the questions on page 311, 1-6.  These will be checked tomorrow. Study for the quiz!


Physics

Happy Halloween!

Bellwork:
    1.  How does the change in momentum of a car running into a wall compare to the change in momentum     of the same car traveling at the same velocity, if it were to run into a stack of pillow (I don't know....Just     go with it!)

    2.  In front of most cement over pass tower supports, you will find barrels that are fill with water.  Explain     what the function of these barrels may serve.

Discuss the shoe testing methods that you have devised

Go over the book problems.

Hand in the impulse lab.  Make sure the analysis questions are answered!  You do not have to do the going further.

If you have done the point make up problems for the forces test, please have them out and ready to hand in. 

We will go over the Conservation of Momentum Problems tomorrow.  You will need to grab a whiteboard when you get to class.

HW:Conservation of Momentum problems.  We will check and go over the problems tomorrow. 

**Also, remember that the initial drawing and explanation for the egg drop will be collected tomorrow.**