Cartoon Analysis

Over the next three days, you will be creating a spreadsheet that details the use of motion in Cartoon Physics. Before you start, you must pick a video and identify where you feel constant velocity, uniform horizontal acceleration and uniform vertical acceleration is taking place.

Edible Car Writeup

Right click here and copy the file to your desktop.  You will need to open Windows Movie Maker OR Logger Pro, and then insert the movie.

Analyze ONE of the clips, and tell me if it is your own:

Sample #:
Average Velocity
V(i) at the beginning of the ramp
A of deceleration (m/s/s)

Write a 2 to 6 paragraph reflection that details your observations, your efforts, and your modifications.  This should be posted as a blog post comment on this site (remember, you need to login with a Google user/password)

Edible Race Cars

Purpose: To design, construct, and race cars to maximize either their displacement, Δx,
or average velocity,
• All components of the race car must be materials that are edible for humans,
with the exception of 2 bamboo shish kabob skewers;
• All cars must have four separate wheels (two on one side and two on the
other side of one axle does not count).  Wheels or the wheel/axle must revolve and be
fixed below the vehicle;
• Race cars must move a minimum of 1 m in a forward direction from the
bottom of the launch ramp;
• The race car should be no larger than 30 cm x 30 cm x 30 cm.

Requirements for written portion:
• As you build your car and test it prior to the in-class race day, keep a written
record of any modifications you make to improve its performance. Include
what you tried and why it did or didn’t work well. Describe why you chose
each component in your final design and how it optimizes the performance of
your car.
• INCLUDE A PHOTO of your car and email it to marciarpowellATgmail.com or twitpic it to me.

• Look up and write down the definitions and/or equations for “displacement”
and “average velocity.” You will need to know these on race day to make
your measurements and do your calculations.
On race day:
• Your car will be launched from a ramp propped up to form a 30º angle with
the floor. A line is drawn crosswise 1.00 m above the bottom of the ramp. The
front end of the car is lined up with the edge of the marked line and released
from rest.
• Displacement is measured from the bottom of the ramp to the stopping point
of the furthest part of the car.).
• Time is measured with photogates for the first 1.00 m from the bottom of the
ramp, and for the total trial.
Data:
displacement from the end of the ramp to stopping point: Δx = ______________
time from end of ramp until the 1.00m mark: t = ______________
time from the end of the ramp to stopping t(total)=_____________

Calculations (show work!):
average velocity of car in the first 1.00 m:  = ______________
average deceleration value of your car in the total trip =____________ m/s/s

Lab Rubric for Grading will be developed in class

MOVING MAN

Click Here

Answers to Practice Test

Name

Date Pd

UNIT II: Test - v1

For each of the following graphs in questions 1-4:
a. Describe, using a clear, complete sentence, how the motion of object 2 differs from the motion of object 1. Explain how you know.
b. Sketch the graph of velocity vs time for object 1 and object 2. (label clearly)
c. In the space provided, draw motion maps for object 1 and object 2.
1.


Object 2 is going faster than object 1. The v-t line for object 2 should be a horizontal line above the x-axis, the v-t line for object 1 should be a horizontal line between the x-axis and the line for 2. The motion map spacing for object 2 should be further apart than object 1
2.
Object 2 is going the same speed as object 1. The v-t line for object 2 should be a horizontal line above the x-axis, the v-t line for object 1 should be the same as object 2. The motion map spacing for object 2 should be the same as object 1, but object 1 starts at the origin, and object 2 starts to the right of object 1

3. Object 1 is going faster than object 2, and object 2 is walking towards the origin. The v-t line for object 2 should be a horizontal line below the x-axis, the v-t line for object 1 should be a horizontal line above the x-axis. The motion map spacing for object 1 should be further apart than object 2. Object 1 starts at the origin and moves right. Object 2 starts on the right side and moves left.

4.
Object 2 is not moving, and object 1 is moving away from the origin.. The v-t line for object 2 should be a horizontal line on the x-axis, the v-t line for object 1 should be a horizontal line above the x-axis. The motion map spacing for object 2 should be dots on that are not moving, starting at a point to the right of the origin, and the dots for 1 are moving away from the origin to the right.

5. DONE IN CLASS

6. DONE IN CLASS

7. Consider the position vs time graph for Flipper below
a) Determine Flipper's average speed. Show your work.

The slope of the line is change in y/change in x = 30 m/6 s = 5 m/s

b) Mathematically model the relationship between position and time.

Y=5x +0

c) What will Flipper's position be at 8.0 s? Show how you got your answer.

Y = 5*8+0 = 40 m


8. DONE in CLASS

9. DONE in CLASS

Lab in class...practice with motion maps

I have a family emergency, so I will not be in today. If you need more information, ask PT.


Group work:
Go to Name that Motion and go through the tutorial to increase your understanding of motion maps. TWEET any questions to me at Twitter.

Group work 2:

Go to SaferCar.gov and suggest a three used vehicles (1998-2006) for mapowell to consider buying, since her van is not doing very well. Consider safety rating, mileage, and seat belts (I need at 6 to 8 buckles). You will need to click the link in the middle column to get safety information. Include your rationale and the evidence you gather, and hand in as a one page document for your group.

Individual work 3: Try the next worksheet in the packet. On Tuesday, we will catch up, and you will get the retake material.

Happy Labor Day!

Radioactivity Quiz

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