WORK ENERGY CHAPTER INTRO

• HW READ CHAPTER 6.1-6.2 Tonight
• Question # 17
• DO 2 ODD Problems Check answer Questions
•  

 

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 nonconservative 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. 

From <http://wps.prenhall.com/esm_giancoli_physicsppa_6/16/4351/1114062.cw/content/index.html>

PRACTICE

QUIZ ON MOMENTUM AND IMPULSE TUESDAY

MOMENTUM AS A 2 D VECTOR
KPSS: X and Y CHART
FBD similarity to a momentum vector DIAGRAM
https://www.wiley.com/college/cutnell/0471663158/ilw

UNIT: MOMENTUM
DAY:49
ACTIVITY: (ILW)



COMPLETE : NOTE: QUESTIONS:
ILW #1  REVIEW
ILW #2 INTRODUCTION
ILW #3 APPLICATION

The Physics of the 69-Degree Intersection
This is Python- it is base off of the computer language C+

• Identify the key variables
• Edit the variables / code (this is called "                       " where you don't code from scratch but just change some of the variables to produce a result, with out any real knowledge of the code itself.)
• What did you learn?

CODE

UNIT:AP PREP
DAY: 47
ACTIVITY:ALBERT IO

BYEVKAPWTRER

MOMENTUM

Watch The Video


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

KITTY PURRY

What is the acceleration of the cats and the tension of the ropes the rope.  First correct answer gets???

Possible titles :
 PHUrry  physics
Cats and the?
Link to picture:
https://drive.google.com/open?id=166YN8M5C0FMbq0vffIjuKTFVEdUhYu6q


Try problem #1 on the following AP exam
https://drive.google.com/open?id=1gIo_iixpV3J9YuMOGCD3iZzTNQE00mVX

Telstar #1
Calculate where to put aconmunications  satellite so it will be above the same point above the earth all the time.  Geosynchronous Orbit!


The little satellite that could!!!

America’s Defence Meteorological Satellite Programme (DMSP), which has overseen the construction of eight F-series satellites that use microwaves sensors to monitor sea-ice coverage. These probes, which have lifespans of three to five years, have shown that millions of square kilometres of sea ice have disappeared from the Arctic over the past 20 years, allowing less solar energy to be reflected back into space – and so further increasing global temperatures – while also disrupting Inuit life and wildlife in the region.

At present three ageing satellites – DMSP F16, F17 and F18 – remain in operation, though they are all beginning to drift out of their orbits over the poles. The latest satellite in the series, F19, began to suffer sensor malfunctions last year and finally broke down a few weeks ago. It should have been replaced with the F20 probe, which had already been built and was being kept in storage by the US Air Force. However it had to be destroyed, on the orders of the US Congress, on the grounds that its storage was too costly.

Any guess on the cost to build a new satellite?

JUMPING TO CONCLUSIONS

UNIT:Fc Centripetal Force
DAY:BREAK WORK
ACTIVITY:JUMPING TO CONCLUSIONS
PART 1
Part 2


Watch the 2 videos.

RECORD DATA IN YOUR NOTEBOOK
FIND THE GENERAL SOLUTION THAT WOULD PREVENT THE PROBLEM
APPLY KEY PSS

Did Steve test his idea out? Did he need to test his idea?

UNIT:PROBLEMS
DAY:
ACTIVITY:SUB STUDY
Attempt all work.  Write down specific questions. include page numbers ect

1. DON'T TOUCH ANYTHING IN S-10
2. 20 Points Chapter Problems Circular Motion
1. Any Problems with space or animals or appliances or amusement rides 
3. COMPLETE EXTRA DRILL ON DIFFICULT TOPICS (FORCES AND MOTION ONLY)
4. COMPLETE THE BUS STOP ACTIVITY IN YOUR GROUPS
1. GROUP LEADERS (READ AND FOLLOW DIRECTIONS)
1. ANGIE S
2. Andrew D
3. Andrew H
4. Michelle L.

What the ?

 

multiple Body Problems

UNIT:Dynamics
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 necessarily the same force.

TODAYS NOTES HW

UNIT: Dynamics
DAY: 36
ACTIVITY:Friction

 NOTES


HW.  CALCULATE THE acceleration of the object if it is sliding down the ramp

P:Calculate the acceleration if the object is sliding up the ramp>

• Q:  Could it be sliding up the ramp at constant velocity?  EXPLAIN.

UNIT: Dynamics
DAY:33
ACTIVITY:  HW

COMPLETE at least 5 points on section 4.10 Problems at end of Chapter
A point = # stars +1
Example
**= 2 stars = 2+1=3 points

FLAT EARTH GRAVITATION

UNIT:Dynamics
DAY:32
ACTIVITY:Forces


Universal Law of Gravitation
The radius of the Earth!

Measurement of the Earth's circumference[edit]

Illustration showing a portion of the globe showing a part of the African continent. The sunbeams shown as two rays hitting the ground at Syene and Alexandria. Angle of sunbeam and the gnomons (vertical pole) is shown at Alexandria, which allowed Eratosthenes' estimates of radius and circumference of Earth.

Eratosthenes calculated the circumference of the Earth without leaving Egypt. He knew that at local noon on the summer solstice in Syene(modern Aswan, Egypt), the Sun was directly overhead. (Syene is at latitude 24°05′ North, near to the Tropic of Cancer, which was 23°42′ North in 100 BC^[16]) He knew this because the shadow of someone looking down a deep well at that time in Syene blocked the reflection of the Sun on the water. He measured the Sun's angle of elevation at noon on the same day in Alexandria. The method of measurement was to make a scale drawing of that right triangle with the vertical rod and its shadow as its legs and to measure the acute angle subtending to the shadow. This turned out to be about 7°, or 1/50th of the way around a circle. Taking the Earth as spherical, and knowing both the distance and direction of Syene, he concluded that the Earth's circumference was fifty times that distance.

Dynamics "Newton's Laws"

UNIT: DYNAMICS

DAY: 29 INTRODUCTION

ACTIVITY:Drawing & Labeling FBD

FUNDAMENTAL SKILLS: 

• Identify and Name Forces

•  FBD CLICK HERE (Complete ALL FBD and PUT IN YOUR NOTEBOOK)

• Sum of F equation (Write The Sum of the Forces and put in your notebook)

KEY IDEAS:

• NEWTON'S LAW'S 

  State:Define:Describe:Differentiate:Give examples 

    Practice Questions

Complete and Put Your Solutions in your NOTEBOOK
IDENTIFY KEY DIFFERENCES in the PROBLEMS
WRITE THE KEY PSS ASSOCIATED WITH EACH

		ILW# 4.1 (Chapter 4 Page 93 Problems 4, 6)
		ILW# 4.2 (Chapter 4 Page 104 Problem 82)
		ILW# 4.3 (Chapter 4 Page 114 Problems 46, 53)
		ILW# 4.4 (Chapter 4 Page 118 Problem 90)

Objectives

After studying the material of this chapter, you should be able to:
1. State Newton's three laws of motion and give examples that illustrate each law.State:Define:Describe:Differentiate:Give examples 
2. Explain what is meant by the term net force.
3. Use the methods of vector algebra to determine the net force acting on an object.
4. Define each of the following terms: mass, inertia, weight and distinguish between mass and weight.
5. Identify the SI units for force, mass, and acceleration.
6. Draw an accurate free body diagram locating each of the forces acting on an object or a system of objects.
7. Use free body diagrams and Newton's laws of motion to solve word problems.

READ AND OUT LINE CHAPTER 3-"2 D Kinematics"

UNIT:2D Kinematics
DAY:21
ACTIVITY:

NEED A BREAK CLICK HERE

• KPSS:
• Divide problem into 2 separate problems 1 in the x and 1 in the y
• Relate the motion, position, velocity and accelerations of each by the time.
• Keep in mind that you are solving for the vector components and must recombine the X&Y to get a final answer 
• Sample Problem 1 "Outfoxed"  put in your notebook
•  ( Note this includes a before and after)
• Sample Problem 2 "Moon Shot" put in your notebook

After studying the material of this chapter, you should be able to:
1. Represent the magnitude and direction of a vector using a protractor and ruler.
2. Multiply or divide a vector quantity by a scalar quantity.
3. Use the methods of graphical analysis to determine the magnitude and direction of the vector resultant in problems involving vector addition or subtraction of two or more vector quantities. The graphical methods to be used are the parallelogram method and the tip to tail method.
4. Use the trigonometric component method to resolve a vector components in the x and y directions.
5. Use the trigonometric component method to determine the vector resultant in problems involving vector addition or subtraction of two or more vector quantities.
6. Use the kinematics equations of Chapter Two along with the vector component method of Chapter Three to solve problems involving two dimensional motion of projectiles.  


Assessments:

• Shooting for an A
• Calculate the launch velocity of a projectile
• Develop a procedure to fire your projectile with the precision required
• Use the launch velocity to determine the range of a projectile when fired at a specific angle 
•  Create a note card with a well labeled diagram and solution
• To get a 5(100) your projectile must hit where the calculations predict on the 1st shot!
• 
  
• Projectiles 48 T/F
• AP Projectile Problem Quest

ALBERT IO INVITE CODE:
BYEVKAPWTRER
we will try to schedule lab time so you can get a solid introduction to ALBERT IO

STUDENT COMPANION

http://bcs.wiley.com/he-bcs/Books?action=index&bcsId=3138&itemId=0471663158STUDENT COMPANION

Practice Problem

MORE BUSES Not BUSSES

RUNNING OUT OF TIME LAB

UNIT: Lab Kinematics DAY:15
ACTIVITY:RUNNING OUT OF TIME LAB
Use the data collected from the lab to complete your portion of the form

Data FORM 

Results