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Momentum

Start with this

The Mechanical Universe: 15. Conservation of... by physics-lnr

• Read chapter summary 
• Read the chapter

• 1.     What factors affect the collision of two objects?

  2.     How can you determine if a collision is elastic or inelastic?

  3.     How can changes in momentum be used to determine the net force applied to an object?

   

• By the end of this unit, students will know: ·         Perfectly elastic collisions of objects moving in arbitrary directions ·         The effect of impulse at an arbitrary angle to initial velocity ·         Inelastic collisions of objects moving in arbitrary directions ·         Collisions: Perfectly elastic, perfectly inelastic, inelastic ·         Conservation of momentum with objects moving in arbitrary directions By the end of this unit, students will be able to: Describe the relationship between impulse and momentum Use conservation of momentum to solve problems Understand the differences between different types of collisions How to find the center of mass of an object

   

Theres a hole?

This problem envolves some relevant concepts and skills that will be required throughout the year.

• Gravity.  Constant and Variable.
• Work done by a variable force.
• Creating thought experiments to explain events.
• Derivation of calculus expresions 
• creating meaningful equations from graphs
•  You should me able to identify all critical points in the problem
• ZEROS
• MAXIMUMS

Centripetal Force

After studying the material of this chapter, you should be able to:
1. Calculate the centripetal acceleration of a point mass in uniform circular motion given the radius of the circle and either the linear speed or the period of the motion.
2. Identify the force that is the cause of the centripetal acceleration and determine the direction of the acceleration vector.
3. Use Newton's laws of motion and the concept of centripetal acceleration to solve word problems.
4. Distinguish between centripetal acceleration and tangential acceleration.


Friction:

1. Know the difference between static and kinetic friction   
• Be able to Graphically show the relationship between them
2. Measure coefficient of static friction from experimental data collected                           
3. Measure coefficient of kinetic friction from experimental data collected                                                                 
4. Define expected trends in the different frictional coefficients for different types of surfaces    
                     
    

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DAY 20

• Create Login
• Practice Kinematics

Mechanical Systems

Draw a picture with all the forces acting upon it.  (F.B.D)

Assign a direction to be positive.  (F.O.R) + usually     preferred  for the direction of acceleration.

Write a relationship for the sum of the forces 

          in the x and y direction.

Substitute and solve for unknown terms

this may need to be done repeatedly

In a system that includes Multiple Bodies:

        write the equation for each body

        write an equation for the combined system

* Note:  If objects are bound, they must share the same                             motion but not necessarly the same force.

EXTRA CREDIT: Whats the difference?

Derive a formula that calculates the distance traveled of a projectile.
When given the range and max height.
Discuss ideas on the blog:
Turn in a card that clearly show all critical ideas
and all math concepts clearly

That is to say if you stretched a string along the objects trajectory what would the length of the string be?

Unit Vectors

• You should have read CH.3
• Test your knowledge
•  Unit Vectors notation
•  FLIPPING physics guy 

•  Vector Lab

Suggested Problems
Assignments
a. Use questions 2, 3, and 4 to discuss properties of vectors. Questions 1 and 5 deal with
vector addition and subtraction. Question 4 deals with the signs of components.
b. Ask students to use graphical representations of vectors to think about problems such as
8 and 10.
18 Lecture Notes: Chapter 3
c. Problems 1, 6, and 10 cover the fundamentals of vector components. Problems 5 and 4
stress the physical meaning of vector components. Some good problems to test understanding
of analytic vector addition and subtraction are 15, 16, 20, and 24.
d. Unit vectors are used in problems 12, 13, 18, and 20.

DAY # 3 Graphical Analysis of Motion

Graphical Analysis of Motion

• refrain from using the word it
• be able to:
• draw the remainder of the position velocity and acceleration graph
• describe the mathematical context of the graph
• state the physical/mathematical identity 
• write the general form of the equation in relation to the graph 

• Bonus Material 
•  YALE PHYSICS start at 18:00
•   GRAPH MATCH & CHECK
• Engineering Physics1
•  Engineering Physics2 (short)

Student RESOURCES

• STUDENT COMPANION SITE Halliday Resnick Walker

• Calc C-heat Sheet#1

•  Calc C-heat Sheet#2 

• Physics C-heat Sheet

2016 AP PROBLEM #1

We discussed in 2 possibilities for the A vs. F graph.

• Make a choice about which one you agree with and why?
• Sketch a continuation of the graph after the string is cut until it stops?
• are there any inconsistencies with the graph and the motion of the object?
• Explain?

Class MATERIALS:
Graphing Calculator
Compostition Notebook
Organizational FOLDER/BINDER
TEXT BOOK FUNDAMENTALS OF PHYSICS
HALIDAY RESNIK

GENERAL CONTACT INFO

THIS SHOULD BE THE ACCOUNT YOU CHECK AND USE...

CLICK HERE & COMPLETE

Complete the Following

 https://secure-media.collegeboard.org/digitalServices/pdf/ap/ap16_frq_physics-c_mech.pdf

Click on link above

Print out pages pertaining to problem #1

Discuss any questions thoughts or insights you have

Complete problem #1 on your printed pages.  

Bring to 1st day of class.

IMPORTANT NOTICE

IMPORTANT A DISSCUSSION CAN NOT OCCUR ON THE LAST DAY YOU MUST POST AT THE OPENING OF THE ASSIGNMENT BEFORE THE DEADLINE IN ORDER TO HAVE A DIALOG!!!  

CURRENTLY EVERYONE IS FAILING THE ASSIGNMENT...

Module 1

Comments due by midnight July 11th

Use and cite the reading to support your responses.

What is a limit?

What does the slope of two points  on velocity time graph represent?

How is this different than the average velocity?

How is it different than the instantaneous velocity?

What are two other ways to describe the above?

Head Banger question:

Can I have a velocity if no time has passed? explain your reasoning.

SUMMER ASSIGMENT

This is the primer for all of Physics and Calculus.


The packet you received will be discussed here on the blog BY YOU!
Discussions will be labeled with the  pertaining sections.  ADDITIONAL FOCUS QUESTIONS MAY BE ADDED!

Each week an individuals will be responsible for posting  a summary to include:

• Key Questions
• Issues
• Main Ideas
• Both Mathematical & Physical
• often we can rectify one concept using the other.

To be successful you must have a strong concept of the physical the graphical and the mathematical equations.  That is the purpose of the summer assignment discussion.