AP PHYSICS CIRCUITS INTRO

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This Week END

• STUDY PACKET!  DO IT not a suggestion.
• OK Please Pages 87-94
• You can use the circuit simulator to test certain questions
•  Whats the difference between hooking up a volt meter and an Amp meter?
•  Do it on the simulator
• 
  
• Upon Request Circuits Power Point Chapter 20

 PHUN VIDEO

•  Getting Started with Electronics
• In your notebook label a new page as circuits and the following days
• Day1 

• Objectives 

  • After studying the material of this chapter, the student should be able to:

  1. Explain how a simple battery can produce an electrical current.
  2. Define current, ampere, emf, voltage, resistance, resistivity, and temperature coefficient of resistance.
  3. Write the symbols used for electromotive force, electric current, resistance, resistivity, temperature coefficient of resistance and power and state the unit associated with each quantity. 
•  Use the simulator above:(must be done on a real computer not Phone)
• Build a circuit to  make a bulb light with the fewest # of components (make observations)
• Sketch this in your notebook
• Sketch the circuit using both visual and schematic representations.
• What is current?
• What is resistance?
• What is voltage?
• Remove the light bulb and repeat the experiment.
• What  is different?  Why?
• Substitute a wire for the original light bulb
• What is different? Why?
• Sketch in your notebook & Complete the analogy below with electricity terms describe the purpose of each.
• 
  

POST LAB BRIGHT IDEAS
• 
  

Snow day...

Mr. Crane shovels his 24ftX125ft driveway the snow is 10 in deep.  He throws the snow 4ft in the air before it comes to rest 3ft away.  How much work did he do on the snow?
Answer:0joules  work is defined as the measurable change of the KE of an object...  So could you determine which snow has more energy after the driveway was cleared? (NO)
A different question would be how much work did Mr. Crane do?
Wcrane=PE+KE of snow@ the top or bottom when it hits...




Do these guided problems below.  We are running tight to our schedule due to snow days.
http://bcs.wiley.com/he-bcs/Books?action=chapter&bcsId=3138&itemId=0471663158&chapterId=24684

What's the point?

Want to get out of shoveling today?  Tell your parents you have some physics work...  Because you do!

Watch PP

https://docs.google.com/a/atlantic.edu/file/d/0B-ioCRFAjVCmUFFuYnNpUWtUZmc/edit?usp=docslist_api

If you want to do this from iPhone download PP from the App Store AND hit play.  Otherwise do this infront of a computer.

https://docs.google.com/a/atlantic.edu/file/d/0B-ioCRFAjVCmUFFuYnNpUWtUZmc/edit?usp=docslist_api

Let me know if there are problems w/ links.

Rotational Analogs

Objectives

After studying the material of this chapter, you should be able to:
1. Convert angular quantities from revolutions or degrees to radians and vice versa.
2. Write the Greek symbols used to represent angular displacement, angular velocity, and angular acceleration.
3. State the meaning of the symbols used in the kinematics equations for uniformly accelerated angular motion.
4. Write from memory the equations used to describe uniformly accelerated angular motion.
5. Complete a data table using information both given and implied in word problems. Use the completed data table to solve word problems related to angular kinematics.
6. Distinguish between inertia and moment of inertia. Write from memory the formulas for the moment of inertia of selected objects and calculate the moment of inertia of these objects.
7. Explain the meaning of the radius of gyration. Use the radius of gyration to solve for an object's moment of inertia.
8. Distinguish between linear momentum and angular momentum. State and apply the law of conservation of angular momentum to solve word problems.
9. Calculate the lever arm distance and determine the magnitude and direction of the torque vector if the magnitude and direction of the net force are given.
10. Draw a free body diagram for each object in a system. Locate the forces acting on each object. Use F = ma and τ = Iα to solve for the linear or angular acceleration of each object.
11. Apply the law of conservation of angular momentum to a system where no net external torque acts. Determine the change in angular velocity of a system where the moment of inertia of the objects that make up the system changes.
12. Distinguish between translational kinetic energy and rotational kinetic energy. Apply the Law of Conservation of Energy to solve problems that involve rotational as well as translational kinetic energy.