Circular Motion

Circular Motion
Roller Coaster Physics

Thursday, November 25, 2010

Bimester Review

Bimester Review Pre Physics

Unit 3: Forces
Work (3)
·     Outline what is meant by work (displacement and force in the same direction).
·     Determine work done by a constant force.
Energy (5)
·     Outline what is meant by kinetic energy.
·     Outline what is meant by change in gravitational potential energy.
·     State the “work-energy” theorem.
·     Solve problems on both types of energy, and the “work-energy” theorem.
Unit 4: Circular Motion
Circular Motion (6)
·     Draw a vector diagram to illustrate that the acceleration of a particle moving with constant speed in a circle is directed towards the center of the circle.
·     Apply the expression for centripetal speed.
·     Apply the expression for centripetal acceleration.
·     Apply the expression for centripetal force.
·     Identify the force producing circular motion in various situations (sideways friction on tires in a corner and gravitational pull).
·     Solve problems involving circular motion.
Unit 5: Fluids
Hydrostatics (5)
·     Identify the concepts of pressure and density in homogeneous solid, liquid, and gaseous materials.
·     Calculate the pressure, density, force, and area in homogeneous solid, liquid, and gaseous materials.
·     Solve problems applying the Pascal Principle.
·     Identify the characteristics of atmospheric pressure from Earth’s surface to outer space.
·     Identify the instruments to measure atmospheric pressure.
·     Determine quantitatively the variations of pressure and volume at constant temperature for a certain amount of gas using Boyle’s Law.
·     Solve problems applying the Archimedes’ Principle in fluids.
Unit 6: Electrical Circuits

Electrical Circuits
·         Define: voltage, current, resistance, power, and Ohm's Law.
·         Qualitatively analysis series, parallel and compounds circuit problems
·         Draw schematic diagrams.
·         Solve series, parallel and compound circuit problems.



Tuesday, November 9, 2010

Nov 9th homework

As promised...only two problems.

#42 a and b only
#43

Good luck...and it will be graded so have it done nicely, and neatly.....on a piece of paper without the yucky side things, ready to turn in.

See you tomorrow,
----Mehdi

Tuesday, October 26, 2010

Circular Motion Mastery Assignment

http://www.mrwaynesclass.com/circular/mastery/Circular%20Motion%20Mastery%20Assn.pdf


If you do this before you come to class tomorrow, then you will be able to work on the project rather than the assignment.  You need to check your answers with me first though.

Good luck!
---Mehdi

Thursday, October 21, 2010

Extra Credit Assignment

Go to the following link, print out the forms, do the activity and answer the questions at home.

http://www.mrwaynesclass.com/circular/activity/home.html

You will receive either:
A drop quiz grade
5 points added to two different exams
10 points added to one exam
or make me a reasonable offer

You must have INTEGRITY to do this assignment....you must do it individually!
If you do it with a partner you must tell me and you will each receive ONLY 5 point each and the drop quiz is off the table.

Paper Roller Coaster Physics Project

Here are a couple of links that you should use.

www.paperrollercoasters.com
http://www.mrwaynesclass.com/ProjectCoaster/index.html

Have fun

-----Mehdi

Wednesday, October 20, 2010

Homework for Wednesday, Oct 20, 2010

Your homework is numbers 39-49 (this is the section on roller coaster physics).

The questions may appear tough, but if you start writing the givens and see how to apply them to the problem...they all work out nicely.
Ok...so I have started doing them...you can't do number 40 b/c there isn't the large circle's radius...and number 44 the answer is 10.1 not 2.3....
Have fun!
Good Luck!
----Mehdi

Sunday, October 10, 2010

Workbook that will be used as anxillary material.

Download the following workbook either onto your computer or onto an external hardrive or USB key.  We will use this for homework problems.  You can also use it for extra practice problems.  Please be aware though that you are not responsible for all problems that are in this workbook as it is used in my Phys A class as well.  Pre Physics is worried only about the basics so as to give you a broad overview of some of the topics you may see if you choose to continue on into Phys A.   It does not delve deeply into each topic so you aren't responsible for angles, complex graphing, etc.  Only do problems similar to those we do as practice in class.  If you do practice problems and find that you are not receiving the correct answers, please come to tutorials after school on Tuesdays.

http://www.mrwaynesclass.com/workbook2009/Physics_Student_Workbook_Wayne_1-203.pdf