Paul Andersen Paul Andersen

Raw or Boiled Egg Experiment

Description:  This is a simple experiment to demonstrate the idea of inertia. Students could be given eggs that are both raw and boiled and they could use evidence to support the identity of the labeled eggs. In the raw egg the yolk and fluid act as independent objects and so they will continue moving when the egg is briefly stopped.

Web Resource:  Newton’s First Law - the Physics Classroom

An egg experiment was necessary in our home this weekend. We were preparing for some serious egg decorating but lost track of which bowls contained raw egg or boiled egg. Without having to crack an egg, we used egg physics to help us solve our problem.
 
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Paul Andersen Paul Andersen

Amazing Rube Goldberg Machines

Description:  Rube Goldberg machines are named after American cartoonist Rube Goldberg who drew complicated steps involved in doing a fairly simple task (like pouring milk in a glass). Students can study these machines, or build their own, to show how energy can be converted through a series of interactions. In lower elementary classes they might be shown or built to show how pushes or pulls can change the motion of objects. As they move through school they should start to identify specific collisions, interactions, and conversions of energy.

Web Resources:  Rube Goldberg Machines - Wikipedia

http://www.2dhouse.com/rubegoldbergmachines.php - This was a fun short Rube Goldberg Machine we produced in house. Mostly an experiment but definitely quite interesting and very rewarding to create. We hope you enjoy :).
 
From the OK Go album "Of the Blue Colour of the Sky" available at http://www.okgo.net/store Director: James Frost, OK Go and Syyn Labs. Producer: Shirley Moyers. The official video for the recorded version of "This Too Shall Pass" off the album "Of the Blue Colour of the Sky".
 
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Paul Andersen Paul Andersen

Amazing Slinky Tricks

Description:  The Slinky was invented by Richard James, an engineer, who was working with springs to support and stabilize equipment on a ship. Simple slinky tricks show how forces (pushes and pulls) change the direction of an object. Students can design a set of stairs, or obstacles, that the Slinky can navigate. In the secondary science classroom it can be used to investigate inertia, oscillations, and Hooke's law. This phenomenon can also be used to investigate wave properties.

Web Resource:  Slinky - Wikipedia

I guess this is how you're supposed to play with a slinky「(°ヘ°) It's pretty ridiculous the tricks that you can do with this classic children's toy. // Relive your childhood and play with a slinky. PICK ONE UP HERE! → http://amzn.to/2mVd613 // Kuma Shirts→ http://bit.ly/KumaShirt // Subscribe→ http://bit.ly/kumaf1lms // More vids → http://bit.ly/kumavids Congrats to the winners for the Ringdama giveaway!
 
Building the slinky escalator for never ending slinky stair traversal. http://woodgears.ca/toys/slinky.html
 
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Paul Andersen Paul Andersen

Coupled Pendulum

Description:  The coupled pendulum can be created with either string or a spring connecting the two pendulums. With each swing energy is transferred from one pendulum to the other. If the pendulums both have the same length one pendulum comes to a complete stop before alternating motion. This phenomenon can be used to show balanced and unbalanced forces, how motion can be used to predict future motion, and the conservation of energy.

Web Resource:  L.R. Ingersoll Physics Museum

Coupled Oscillators, or pendulums, are demonstrated by Professor Roger Bowley as part of little Easter series. He's using creme eggs, of course. More eggsperiemnts at http://www.sixtysymbols.com/eggs/
 
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