Thursday, December 13, 2012

Physical Science B
 Bellwork:
    1.  Explain where protons, neutrons, and electrons are found in an atom.

    2.  If an element has a mass number of 56 and an atomic number of 12.  What is the number of protons     neutrons and electrons.
   
    3.  From your lab, explain how an object can become negatively charged?  Positively charged?

    4.  Use your knowledge of what you have done in the lab thus far and explain the difference between a     conductor and an insulator.

Finish the electrostatics lab.
Key Concepts to focus on:
        -How to use a pith ball to determine if an object is charged.
        -The difference between conductors and insulators.
        -How to use an electroscope to determine the sign of a charge.
        -How to charge by contact and by induction.

Go over and discuss the material.  Wrap-up and discuss problem areas. 

The lab will be handed in tomorrow before the test.

Practice test.

HW: Study for the test.  Go over the vocabulary and major topics.  Answer Key to electrostatics worksheet

Physical Science A
 Bellwork:
    pick-up a paper and discuss with your partner
Goals:
    -Be able to describe the motion of an object give a distance vs. time graph.
    -Be able to calculate the speed/velocity of an object for given values.

Collect and Go over the lab.

Check Vocabulary

Discuss motion, speed, velocity, and graphing.

Demonstration:
    -Graphing the motion of an object.

    -Make prediction that will produce the given graphs.

Discuss how to solve the speed and velocity problems.  Go over an example.

HW: Finish the speed and velocity problems.