Sept. 28, 2012

Physical Science A

Bellwork:
    1.  What is friction and how does it affect the motion on an object?

    2.  Explain an give examples of Newton's 1st and 2nd Laws.


Objectives:
    1.  List and describe the typical force that you experience and interact with on a daily basis.

    2.  Draw vector diagrams (arrows with magnitudes) that Identifies the magnitude and direction of     everyday forces (e.g., wind, tension in ropes, pushes and pulls, weight).

    3.  Describe the different types of friction and how they affect the motion of an object.

Check and go over the homework(newton's second law of motion).  Use the whiteboards. 

Continue discussing Newton's Second Law

Lab: Friction

HW:  Finish the 2nd Law of Motion problems.  Finish the lab questions.

Physics

-Hand in the projectile motion lab.

Today is balloon launch day.  You will use your knowledge of projectiles, velocity, and angles to find the range of the launchers.

        Formulas to keep in mind:
   
                Vf=Vi+gt

                Vf2=Vi2+2gd

                d=Vit+(.5)gt2


        **Need to keep the velocity the same!**

        **Maximum Range is at angle of 45o**

Each group will receive two balloons, one to determine the range, one for testing.  At 12:35 we will take the class, the balloons, and the launcher out to the practice field and test.

Closest to the target wins!!!!

HW: Projectile motion problems.

We will have a short test on Wed. next week.