Thursday, Nov. 15, 2012

Physical Science A

Bellwork:
    1.  Explain how objects are reflected from a rough surface.

    2.  How does the energy of an EM wave relate to the frequency and wavelength?



Discuss why the sky is blue during the day and why it is red at sunset.

Practice Test over light and the electromagnetic spectrum

Physics A

Bellwork:
    1.  A box fell from a shelf that was 2.8 meters off the floor.  How fast was the box traveling when it struck     the ground?

    2.  Why do we use machines?

Finish and Collect  the KE and PE lab.

Discuss machines.

Each group will be assigned a simple machine.  You will get 5 minutes to do a quick research on the simple machines.  In doing this you will present to the class how the machine works, what the mechanical advantage is, how to determine/increase the mechanical advantage, what the overall benefit of the machine will be.  

Explain the Simple Machine Lab, we will discuss the method of the lab and begin with what time we have left in class.

HW: Finish the simple machine lab questions.  Remember that we have a quiz on Friday, you should begin studying for the quiz.