Pool table documentation and video scripts

HAND IN YOUR PACKETS.


Use your phone or a flip video to make the videos.   You may need to convert them, so use a video converter.

You will need to upload each of these items to your Google Docs account.   Make sure it is in an .avi or .wmv (Windows Live Movie Maker) format and is less than 50 mb.

1. Make a 30-60 second video that shows you and your pool table, it's dimensions, and it's gravity feed system.   Take a picture from above showing the break of the balls.
2. Create a one ball collision with a bumper using a video feed.
4. Create a two ball video between the ball and a second ball that illustrates 1-d momentum.
5. Create a two ball video between the ball and a second ball that illustrates 2-d momentum.
6. Create a two ball video between the ball and the second ball that causes both balls to rebound.
6. Analyze #3-6 using logger pro and the movie feature. Make certain you scale your picture.
7. Print your data.

Analysis will happen Monday and Tuesday.

You must share videos to marciarpowellATgmailDOTcom with your group member names.

Momentum Physics Pool Tables

This activity is adapted from High Tech High

You will be building a table top pool table.
Requirements

The Detailed Sketch must:
-- Be scaled-down from a full size pool table
-- Be no bigger than 65 cm * 130 cm
-- Be drawn on the computer (I would suggest Google Sketch)
-- Represent the ball return system that is gravity fed (not simply pockets)

The Pool Table must:
-- Include handmade billiard balls (golf balls allowed), cue sticks, & racking triangle
-- Be functional

The Ball Return System must:
-- Gather ALL the billiard balls in one area
-- Be easily accessible by the players
-- Be seamlessly integrated with the pool table

Step one: Make a materials list (cardboard is marginally useful, plywood is better), assign roles, and create a sketch of your design (please submit the sketch to me via email)
Step two: Create your pool table by Monday, 12/16 and bring to class
Step three: Notes and Ideas



Momentum ideas

Using Google Sketchup

We will be using  Google Sketchup for a project this next week.  As a result, you will be getting into pairs of TWO to learn how to use the program.

Go to the Google Sketchup YouTube Channel

Work through the Getting Started Tutorials.  For each, save the final document you make as you go along with the video.   Upload this sketchup file to your Google files and share with me.   Since you are making a different project then all the others in this room, no two files will be alike.

Friday....It's a Google Day.

Concepts of Momentum

This Unit is all About Momentum.   Our first step, of course, is to determine what momentum is:

Reading 1

Reading 2


After this reading, create a set of notes or a concept map to show your understanding.  This is due at the beginning of the class on Friday.

Online lab (see handout)

Bungie Barbie

Set up the equipment, attaching a Barbie on a cord to the force probe. Remember that you need to tell the Logger Pro what type of force probe is attached...it will not do so automatically. Determine Barbie's Fw, and F(net) and Fup Your calculations must be shown at the moment that Barbie is at the maximum extension of the rope. All calculations must be summarized in a table when you turn in the lab.

Procedures:
Produce as least 4 different graphs by dropping Barbie with different cords. Use the evidence to collect a rationale for the common use of rubber as a bungie cord, and whether it is supported by your data.

Sketch, describe, print or save your graphs for each "jump". Clearly indicate which cord or material was used. Also include information such as the amount of force and the time over which the force was applied. Record any relevant observations you saw during the jump.

Individual WRITEUP (5 to 8 paragraphs, plus tables)

Would you rate the
Describe the ideal harness for a bungie jumper so that net force is distributed across the barbie. This should be based on data you gathered when Barbie parachuted.

Explain how the net time for the Barbie to stop jumping can affect a force distribution. (Think carefully: F=ma, but a = change in velocity/change in time)

Based on your data, is it possible to argue that there is a better material for a bungie jump than rubber? Why or why not?

What questions arose in the lab? What information have you found?

Understanding Newton's Laws' Poster

Your first goal today is to create a poster that show your understanding of Newton's Three Laws, using the Barbie examples we have done so far (weighing Barbie, making Barbie a seatbelt, making a Barbie car bumper, and watching Barbie parachute) to illustrate your point.

Content to be covered includes:

• a example of balanced forces
• a example of unbalanced forces
• an explanation of inertia and how that is related to safety features
• an explanation of the difference between mass and weight
• an example of net forces
• a formula on one of the diagrams that shows the net vertical forces
• a formula on one of the diagrams that shows the net horizontal forces
• Newton's first, second, and third laws, defined in YOUR own words (not science-babble) and not those of anyone else in the room

The MINIMUM requirement for your poster is a diagram of each of the four Barbie simulations and labeled forces and laws.  This is an individual poster and due on Tuesday.

Secondly, you must hand in WS1/WS2 on the elevator and vertical net force problems.

Tomorrow and Wednesday we will be working with Bungee Barbie.  Thursday will be a quiz and the start of the next unit.

Parachute Drop Barbie

Today you will need to complete the Barbie parachute jump three times today.  
Measure the time it takes to drop the Barbie to the ground three times, using a stopwatch.  
Using a force probe that is connected to a Logger pro, measure the Force weight of the Barbie and chute.
Divide by 9.8 m/s/s to get Barbie and chute's mass in kg.

Take a picture of the Barbie, in its harness, AND a picture of the parachute and harness system.  Txt or email it to me, with your group member names


Reflection

BUMPER CRASH BARBIE

Today, the teacher cadets will set up a Logger Pro system with two probes:   the force probe (to get the weight of Barbie, the car, and each individual bumper), an accelerometer,

Weigh the Barbie, her seat, and the car with its bumpers.
Attach an accelerometer to the Barbie car, with the arrow pointed in the direction of the wall.
Determine  mu of your vehicle on the floor.  (Hint:  we did this yesterday)

Use a kinematic formula (those acceleration formulas) to determine what you think the acceleration should have been when it came off the ramp.

Have your teacher cadet print the graph, and then save the file to the desktop with your group member names.

Draw a free-body diagram show all the forces on the level, including the net direction.
Use your data to figure out which bumper is most effective, and why you believe it to be so.

Repeat with the second bumper.

Take a picture of your seatbelt configuration for Barbie and detail why you think it is worthwhile.   Leave the Barbie/seat on the back counter by my desk for Wednesday.   Make sure you write your name on the Barbie/seat.

Compile all your information, pictures, and observations into a google document and share with me.  We'll use the graphing data tomorrow.