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.

WORK ENERGY

Objectives 

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

1. Distinguish between work in the scientific sense as compared to the colloquial sense.
2. Write the definition of work in terms of force and displacement and calculate the work done by a constant force when the force and displacement vectors are at an angle.
3. Use graphical analysis to calculate the work done by a force that varies in magnitude.
4. Define each type of mechanical energy and give examples of types of energy that are not mechanical.
5. State the work energy theorem and apply the theorem to solve problems.
6. Distinguish between a conservative and a non-conservative force and give examples of each type of force.
7. State the law of conservation of energy and apply the law to problems involving mechanical energy.
8. Define power in the scientific sense and solve problems involving work and power. 

Reading Guide Questito"Practice Questions"
Complete Practice Problems Problems

• All work should be in your notebook no credit will be awarded if work is absent

Snow day

Read chapter on working energy start with the chapter summary

Post any questions you have

MOMENTUM

Objectives

After studying the material of this chapter, you should be able to:
1. Define linear momentum and write the mathematical formula for linear momentum from memory.
2. Distinguish between the unit of force and momentum.
3. Write Newton's Second Law of Motion in terms of momentum.
4. Define impulse and write the equation that connects impulse and momentum.
5. State the Law of Conservation of Momentum and write, in vector form, the law for a system involving two or more point masses.
6. Distinguish between a perfectly elastic collision and a completely inelastic collision.
7. Apply the laws of conservation of momentum and energy to problems involving collisions between two point masses.
8. Define center of mass and center of gravity and distinguish between the two concepts.(Extra)

HW.   PROBLEMS SET CH7 any 20 to include 12 toatal stars....


Click on link
goto
  VIDEO 15 CONSERVATION OF MOMENTUM
Watch it
Comment on Blog
http://www.learner.org/resources/series42.html?pop=yes&pid=565#

NO AM class

I will not be in tomorrow so you do not have to come in early pass it on...

kinematics graphs review quest

1.Read momentum chapter

         Write down key ideas

2. Click on the link below

http://www.learnapphysics.com/apphysics1and2/kinematics.php

Answer the mc questions in your note book

We will review the answers on Monday

Movie Time!!!

Dr. Good stein is a physics professor at Cal Tech s preemenient engineering and physics university.

Watch the video ask questions (post). Most of this should be a review.

http://youtu.be/6a0-Ry-fufA

Happy New Year!

Graph it!

Hey Santa could use some of these...

Looking for a major?

Looking for a school?

https://www.kickstarter.com/projects/burpg/starscraper-the-next-generation-of-suborbital-rock

In the ? Day of physics...

Play the game.

http://phet.colorado.edu/en/simulation/lunar-lander

What are the key factors?

What are the questions?

5th day of physics...

My physics teacher gave to me a 1meter cube of water.  

How many ml of water is this?

How many grams?

Killiograms?

pounds?

0n the forth day of physics...

Loop d loop

So every thing is always annidea until you put your money where your mouth is...  Watch the video.  

http://m.youtube.com/watch?v=wiZoVAZGgsw

Run the numbers!  

Do they agree?  

If not why?  

What is the force the track exerts on the car at the top of the loop?

What if the top of the track were missing?  How would effect the result?

Does the observation below match your prediction?

http://youtu.be/fpnWZBGpmZE

12 Days of Physics

On the first day of physics...

Discuss the max and mins

http://learnapphysics.com/problem.php

Centripetal Force

• Identify when Fc or ac is occurring.
• Create a proper FBD
• Develop an equation that is the sum of the Forces
• Solve for specified quantities

Practical
"When Pigs Fly"
Use only the forces to calculate the above?
Use the Motion of the object to verify?

Problems & PSS for forces
Draw FBD
Identify Forces
Choose FOR
Break problem into smaller pieces by object or direction or both
write equations from FBD.
See These Examples
(Follow the directions at the top of the page)  or open link on iOS livescribe app

• Tumble Dryrer
• Banking Jet Plane
• Friction
• Incline Plane

REVIEW SITE:

QUESTIONS TEST QUIZZES

Universal Questions

What is Telstar 1?

Why is its invention so important how sis it differ from sputnik?

Describe geosynchronous orbit?

What is asynchronous orbit?

Calculate the conditions required to achieve this on Earth.