Tuesday, September 29, 2015

Projectile Motion (2-D) has arrived

Projectile Motion Lab:

You self designed PML should be underway with data analysis and problem solving.
Remember, your goal is to conduct as complete analysis as possible for motion in 2D.
 Include:
 •Detailed tables containing all relevant data.  
•Graphs of  X vs. time,  Y vs. time and  trajectory graphs Y vs X. 
•Presentation of how you found and calculated the initial velocity and launch angle. 
•*If you can or if you are doing the "standard" approach you will need to present a graph of:
 Range (x) vs. sin2θ checking your datas approximation to the range equation.
Analysis:
•Using your data try to use it to answer some interesting questions (i.e. that are interesting to you)

We will discuss how your lab report will be Concluded in class Thursda, 10-10.

NEW QUEST ASSIGNMENT POSTED:  9-29   DUE10-6 
       "2d motion: more vectors and projectiles"
Work with me and with each other on solving these problems.  
Remember to work them in your notebooks with work clearly shown and organized.
You play as you practice. 

Friday, September 18, 2015

Fridays: Rocket Problem

Here is the rocket problem from class. I will post answers on Tuesday pm. 

In the meantime keep trying to solve it and try the extensions below.


extensions:
c.  What will the maximum height of the rocket be when it begins to descend?
d. How long until it stops climbing after the motor stops?

What is next?  

Practice Quiz on Monday
Real one on 1-d motion on Wednesday.

Wednesday, September 16, 2015

Lab: Acceleration down a ramp

Today we measured the velocity and position of a cart on a ramp.
We measured the height and length so that we could find the angle of incline.

The Goals was to gather data to prove:
• that the acceleration of the cart was constant acceleration
•  to compare the acceleration we calculated with the theoretical component of the acceleration due to gravity.

For each of 2 trials your data table should include:
a.Height=
b.length=
c. acceleration from line of best fit for the portion of data with straight line for V.
d. Position, X and velocity, V data for the relevant section of the plot.

For each trial you should perform the following "processing the data":
Calculations:
 1. theoretical acceleration from ramp angle and components of g.
 2. Plot a graph of velocity squared,v2 versus displacment,x and calculate the acceleration from the slope.    

Compare your calculations of acceleration, account for difference and determine if acceleration down the ramp is constant.

Try to have this done by friday. good luck.


Tuesday, September 15, 2015

Your QUEST for Wednesday 9-16

The second quest assignment : Kinematics 2 is  long one.
Do your best to get what you can done.  Come with QUESTions.

We will spend a little time going over some of your questions.




Wednesday, September 9, 2015

For Thursday September 10

Terminal Velocity Lab-

•Please have your report ready for Thursday class.
You should have perfect graphs illustrating (proving?) what you think to be the basic relationship  between mass and terminal velocity.    Try to propose a simple mathematical relationship between them.  i.e. an equation.

HW

•Also finish those 2 HW problems from chapter one of your text : Q42,43