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Academic Challenge: Newtonian Physics

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Academic Challenge: Newtonian Physics

 

Big thanks to everyone who entered the inaugural Academic Challenge. These are projects and guides that will help teachers help their students understand Newtonian Physics. The next Academic Challenge will be Elementary Art, so sharpen those pencils and get out the good scissors.

 

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Notes: This was a great example of a difficult-to-illustrate concept brought to life with an easy demo. Plus, magnets are awesome.

Magic Monkey Shooter Trajectory Demonstration
To Enter:
Complete the challenge as specified above and share a link for a Guide or Step-By-Step Instructable in the comments below.
OPEN TO US, CANADA (excluding Quebec), UK and AUSTRALIA (official rules)


Rules:
1) You MUST post either a Step-By-Step Instructable or Guide
2) All Step-By-Step Instructables MUST have at least 3 steps and full photo documentation. All Guides MUST include at least 4 projects and explicitly connect the projects listed to the academic standards below.
3) There is no limit to the number of Instructables you can post. However, no duplicate entries are allowed.
4) Projects that do not meet the criteria of the challenge will not be permitted to enter.
5) The judges reserve the right to disqualify anyone who cheats or engages in unsportsmanlike conduct.
6) To be clear, the project MUST be published after the challenge has started to be eligible.
(see the official rules here)


Deadline:
All entries must be published and posted in the comments below posted by 11:59pm February 7, 2012 PST/ 7:59am February 8, 2012 GMT.

Judging:
All entries will be exclusively judged by Wilgubeast based on successful completion, originality, and overall execution of the Instructable. Winners will be announced on February 9, 2012.

Standards to Address:
Select from the academic standards listed below. Create a project that demonstrates, teaches, or reinforces the concept listed. Either create an original project OR collect at least four existing projects into a guide (and be sure to explain how each project connects to the standard you chose.) Remember: create something that a teacher would want to use in the classroom. That's how I'll be judging. You don't need to be a teacher to make something useful, just keep the target audience in mind.


Demonstrate how to solve problems that involve constant speed and average speed.

Demonstrate that when forces are balanced, no acceleration occurs; thus an object continues to move at a constant speed or stays at rest (Newton's first law).

Demonstrate how to apply the law F=ma to solve one-dimensional motion problems that involve constant forces (Newton's second law).

Demonstrate that when one object exerts a force always exerts a force of equal magnitude and in the opposite direction (Newton's third law).

Demonstrate the relationship between the universal law of gravitation and the effect of gravity on an object at the surface of Earth.

Demonstrate that applying a force to an object perpendicular to the direction of its motion causes the object to change direction but not speed (e.g., Earth's gravitational force causes a satellite in a circular orbit to change direction but not speed).

Demonstrate that circular motion requires the application of a constant force directed toward the center of the circle.

Demonstrate that Newton’s laws are not exact but provide very good approxima­tions unless an object is moving close to the speed of light or is small enough that quantum effects are important.

Demonstrate how to solve two-dimensional trajectory problems.


Entries


34 comments
Jan 29, 2012. 12:20 AMOrigamiAirEnforcer says:
Among other things the Sparrow can do, I believe it can demonstrate each of Newton's laws in action quite nicely.
Jan 29, 2012. 12:42 PMCitizenScientist says:
This instructable relates to the forces and two dimensional motion standards. In order to do any analysis of either concept you first must be able to add vectors. Here is a vector addition introduction:

http://www.instructables.com/id/Simple-Vector-Addition-Manipulative/
Jan 29, 2012. 12:53 PMCitizenScientist says:
This is nice challenge for students to test their ability to combine the conservation of energy and projectile motion. Any simple spring gun will work for this.

http://www.instructables.com/id/spring-gun-target-lab-challenge/
Jan 29, 2012. 1:43 PMCitizenScientist says:
This instructable is for constructing a motion cart that students can ride and feel the changes in motion and forces to help them experience different collisions while studying momentum.

http://www.instructables.com/id/Floor-Cart-for-Newtons-Laws/

The specific uses for the cart are described on the last page of the instructable.
Feb 2, 2012. 7:22 PMWYE_Lance says:
http://www.instructables.com/id/Teach-Engineering-Slingshot-Rockets/

The slingshot rockets are a great lesson for illustrating trajectory. Since the launcher is held in one hand and the rocket in the other, students can experientially comprehend trajectory by adjusting the direction in which the rocket is pointing upon release. Newton's second law is also utilized during launches: launching the rocket pulling back on the rubberband and releasing is a very straightforward example of actions (pulling the band) having an equal and opposite reaction (rocket launch).

Thanks for creating this challenge!
Feb 4, 2012. 4:54 PMcraftknowitall says:
Here is my contribution: http://www.instructables.com/id/A-Demo-for-Circular-Motion/. I hope you enjoy!
Feb 7, 2012. 5:45 AMmhockenbrock says:
Here is my submission. My only regret is that I didn't have a classroom to set this up in and demonstrate it at the time. Enjoy.

http://www.instructables.com/id/Magic-Monkey-Shooter-2D-Trajectory-Problem-Solvin/
Feb 7, 2012. 12:14 PMWYE_Lance says:
Here is my guide that I would like to submit for the reasons I outlined in my previous comment:

http://www.instructables.com/id/Project-Based-Engineering-for-Kids/

Thanks!
Feb 7, 2012. 8:03 PMHiggs Boson says:
I wanted to do something on black holes, but there was too little Newton, and more Einstein. Anyway, here's my entry.
http://www.instructables.com/id/Understanding-Newtonian-Gravity/
Feb 1, 2012. 6:20 PMWYE_Lance says:
I would like to enter the following Instructables:

http://www.instructables.com/id/Inexpensive-Rubberband-Powered-Helicopter/
The helicopter project is perfect for illustrating Newton's third law of motion. The downward force generated by the spinning propeller creates 'an equal and opposite reaction' by lifting the craft into the air until the energy is expended.

http://www.instructables.com/id/Teach-Engineering-Truss-Bridges/
All forces of the bridge must remain balanced at all times, even during changing variables, or else the entire structure will collapse.

http://www.instructables.com/id/Hydraulic-JudoBots/
This project covers many of Newton's concepts, but it is most illustrative of his second law. JudoBots attempt to flip each other, which means that the force provided by the hydraulic-powered arm must be greater than the forces keeping the opponent's robot in place. In the equation F=ma, the greater the force, the more effective the robot is in combat. Also, since F must overcome m, heavier robots are desirable.

And although my project is included in the guide, I would like to enter it separately as well: http://www.instructables.com/id/Teach-Engineering-Crash-Test-Racers/
This project is a balance of Newton's second and third laws. If F=ma then heavier cars will generate more momentum and thus a more violent impact. Newton's third law is applicable when considering the safety of the egg. A crash will direct force into the wall as well as into the car in equal measure. Thus students should strive toward creating a car that is both fast (high mass) and safe (capable of protecting an egg from the inevitable consequences of Newton's third law).
Feb 2, 2012. 7:13 PMWYE_Lance says:
Ah, understood. Well that happens to work out nicely - I'm already putting a guide together which I'll be sure to submit
Feb 2, 2012. 6:50 AMjetringer says:
This instructable deals with Newton's Third Law. The magnets demonstrate an equal and opposite reaction to each other as they levitate the car.
http://www.instructables.com/id/Maglev-Cars-Whats-the-Attraction/
Jan 24, 2012. 7:01 PMOrigamiAirEnforcer says:
I happen to know how my airplanes could qualify...
Jan 25, 2012. 11:19 AMTeacherChair says:
Do it. Your planes are awesome. Just make sure that the academic connection is really, super-duper clear.
Jan 29, 2012. 12:23 AMOrigamiAirEnforcer says:
I believe the "possible experiments and demonstrations" section on this airplane show the potential academic uses quite clearly. :)
Jan 25, 2012. 1:17 PM___ says:
I'm holding pot until a quantum physics challenge....
:)
Jan 25, 2012. 1:00 PMjonnyd55 says:
This contest is a great idea :) I love practical science and am excited to see what crazy ideas people come up with! I have an engineering project that will cover a few of the standards you listed.......I first need to consult the schools science dept to check my sums and calc is accurate.......it has been a good 6 years since I left uni and have not looked looked at physics equations since!
Jan 25, 2012. 12:47 PMWYE_Lance says:
Thanks for including my project in your guide - it's an honor!
Jan 24, 2012. 11:21 PMbertus52x11 says:
I can't wait ........ till non-US members can participate again. When-o-when? ;-)
This is a great contest!
Jan 24, 2012. 7:33 PMbalisticsquirel says:
I would enter if it had been open to entries from my region.
Jan 24, 2012. 4:43 PMTheHomebrewGuru says:
Are cell phone jammers even legal??
Jan 24, 2012. 6:58 PMilpug says:
That said, this is the internet, so who cares where you are located!
Jan 24, 2012. 4:45 PMHiggs Boson says:
Thank you! I've been waiting for something like this! I have the perfect project.
Jan 24, 2012. 2:38 PMsherrycayheyhey says:
Would a non-newtonion fluid count?
Jan 24, 2012. 4:12 PMmhockenbrock says:
A non-newtonian fluid does not obey traditional newtonian dynamics. Therefore it can't possibly demonstrate any of the above academic concepts. So I don't think you could use it.

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Author:wilgubeast(Extracurricular Instructions)
I taught English, History, and sex ed to middle school kids. Then I worked as a handyman. Now I work at Instructables.