Bungie Barbie

Go to http://www.physicsclassroom.com/reviews/newtlaws/newtlawsprint.cfm   41, 42, 46, 50-56














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Links to consider

Parachute Basics
Air Resistance (NASA)
Parachute History (you may want to check out Historical Review)


EACH GROUP WILL NEED TO TURN IN A SET OF CALCULATIONS BASED ON THE INFORMATION BELOW.

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

Class Prep:  Measure the distance from the landing rail to the ground below

_____m

If we drop an object from the landing rail to the ground (assume no friction), we know the following:

v(i)=____m/s
a=____ m/s/s
d=____ m

What will be the time it takes for the object to land?


You will need to complete the Barbie parachute jump three times today.


1.  Measure the time it takes to drop the Barbie to the ground three times, using a stopwatch. Calculate the average time ______s

2. Using a force probe that is connected to a Logger pro, measure the Force weight of the Barbie and chute.

3. Using a(g) = 9.8 m/s/s, determine the mass of Barbie/chute's   ____ kg.

4.  Now you have a slightly different system than the one we first considered.  We know the distance to the ground d=___ m, the initial velocity v(i)=____m/s, and the time(avg) of the three trials _____s

5.  Using the data in 4., calculate the net acceleration of your parachute.

6.  Draw a force diagram of Barbie, the net force, the force weight, and the force up.

7.  Determine F(up).



Take a picture of the Barbie, in its harness, AND a picture of the parachute and harness system.  Email it to me, along with a picture or shared document of your calculations.


Reflection (to be done on Monday)

Safety features

Custom Bumpers

Bumper Design

Seat Belt Tensioner

Seat Belt Sensors

Seat Belts in Accidents

Whiplash

Bridge Reflection

Before you test your bridge out, please fill this

PRE_REFLECTION form out.

Test the bridge.   You will need to place it between two stools.   Place material on it, and start adding mass.  You may use 100 g or 500 g masses.

Keep track of:

____mass of bridge (kg)  Remember, 1000g = 1 kg

____mass added to the bridge (kg)   Remember to stay out of the way of the masses.  DO NOT stand under the bridge, or with your head below the bridge.

____weight of the bridge (N)   Weight on Earth = mass(kg) X a(gravity).  The acceleration of gravity on earth is about 10 m/s/s

____weight of the mass added to the bridge (N)

____ length of the bridge (cm)




Take a series of pictures of the bridge

a) before you start  (your group members should all be in this picture)
b) when it has 1 kg of mass on it
c) when it has 2 kg of mass on it
d) when it has 5 kg of mass on it.
e) when it starts to torsion
f) after a bridge collapse

Use these pictures to help you with the reflection, and email me your favorite 3.
Then, fill out the FINAL REFLECTION

Monday

Make sure your two sides of the bridges are finished.

Go through the following screens.  At the bottom of each, you must complete the 'Check Your Understanding' problems (and show work).  These are due at the end of the hour.

We will assemble the bridges tomorrow.

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law (4 problems)

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/The-Big-Misconception (summarize the misconception)

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Finding-Acceleration (2 problems)

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Finding-Individual-Forces (2 problems)





http://phet.colorado.edu/files/activities/3248/Newton's%20Laws%20and%20the%20Lunar%20Lander%20Sim.doc (answer as many of the questions as you can using this applet)

Static Forces

www.physicsclassroom.com/class/newtlaws/Lesson-1/Newton-s-First-Law

We'll be working with the first seven screens.



http://central.wmrhsd.org/FACULTY_FILES/jherrigel/Honors%20Physics/free%20body%20diagram%20worksheet.pdf

Vector Benchmark

This must be completed with someone from another table than your own.

As a culture, we have increasingly become reliant on GPS technology.  Farming, map-making, navigation, surveying, and military identification are increasingly connected to this network of satellite locations.

Project:

INDIVIDUAL PART
Create a series of four scaled vector representations (with a rule and protractor) that tell me how far four buildings in the Manchester area are from the bell of the school using Google Earth.  For each diagram, you must list the starting GPS coordinate to the nearest minute, the final GPS coordinate to the nearest minute, the path length/degrees, and the two legs.  Show work, including a scale where 1 cm = ______  .



GROUP PART
 Use your understanding of GPS and/or Vectors to explain how one of the topics below work, it's advantages, disadvantages, and if your group would recommend it.
 Include a sample physics problem associated with this topic, concrete examples and graphics as appropriate, along with a Resource sheet

You may choose something else, but here are topics to consider:

• How 4Square and Facebook check-in work.  Advantages and disadvantages. (I'd suggest checking in at least 10 places in the Mantown area if you do this.  Use Google Earth to find the exact latitude and longitude)
• Developing a Geocaching Hunt (Brrr...if you do this, it will be cold.  Make a hunt, but then explain exactly HOW you did it.  If you have an app to do that, explain it.)
• Precision Agriculture (check out many of the online farm journals, or agleader.com, or other sites.  Why do they have to sample the fields to use this technology? How accurate is it? Do you want to have tractors with auto-steering?  Is this the future of farming?)
• Military Drone Targeting (Type in a location, and a remote control bomb can drop on a location half-way across the world.  Human rights activists suggest that this technology is not as accurate as it should be, and many civilans have been harmed.)
• Discoveries using Google Earth (military secrets, shipwrecks and hidden treasure, and perhaps undiscovered archeological finds....all from your armchair.   Where have these things been found?  What is the GPS location of some of these secrets?)
• Using Vector-scaled technology in Powerpoint and Adobe Illustrator
• Problems and Foibles with your Automatic Navigator (at what point should you stop listening to the voice and use your common sense?  What about the Apple Maps fiasco?  Where do the maps used in these applications come from, anyway?)
• A GPS can be installed on cars to track a fleet, a rental car, or to check the habits of drivers in your family.    Is this the future of insurance?  Is it a benefit or an intrusion?  How do these things work?)
• Navigation in Flight (What does it take to to be a aeroflight navigator, and how is it different than the Google Tours we just put together?  How has GPS replaced sin, cos, and tan and the Pythagorean theorem needed by navigators of the mid-century last year?
• 3d printing is an application of vectors that can be used for a variety of purposes:  DIY hands, 

Grading:  

Presentation (this can be a flipped video to show to the class or you can present)--15

Digitized artifacts (upload everything to a Google Drive folder, and then share with me)--15

Demonstrated Understandings in Physics related to vectors and/or GPS--15

Quality/Resources--15