Rolling Uphill

MPEG Movie (5.69 MB)
Mysterious Hill (YouTube)

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 Code Number :   1J11.50  


Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

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Condition :   Good  
Principle :   Exchange of Potential and Kinetic Energy  
Area of Study :  Mechanics   
Equipment :   Wooden track (non-level), Double cone for wooden track.

Procedure :   Move the cone to the end of the track and let it go, it will appear to roll uphill.  However, if you observe the axle of the cone you will see that it is actually traveling downward.
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   Web Sites

Secrets of Mysterious Hills Revealed:







Nuri Balta,  "New Versions of the Rolling Double Cone",  TPT, Vol. 40, # 3, p. 156, March 2002.

"Figuring Physics",  TPT, Vol. 38, # 8, p. 482, Nov. 2000.

Martin Gardner, "The Ball that Rolls Uphill", TPT, Vol. 34, # 6, p. 461, Sept. 1996.

Paul Chagnon,  "Animated Displays III: Mechanical Puzzles",  TPT, Vol. 31, # 1, p. 32, January 1993.

R. D. Edge, "String and Sticky Tape Experiments, An "Antigravity" Experiment", TPT, Vol. 16, # 1, Jan. 1978, p. 46.


Sohang C. Gandhi, Costas J. Efthimiou, "The Ascending Double Cone: A Closer Look at a Familiar Demonstration", European Journal of Physics, June 2005, p. 681.


Mr-1: Freier and Anderson,  A Demonstration Handbook for Physics.


M- 482:  "Double Cone - High Wire Toy",  DICK and RAE Physics Demo Notebook.





Tik Liem, "Rolling Uphill", Investigation to Science Inquiry, p. 317.


"230, Antigravity",  Christopher P. Jargodzki and Franklin Potter,  Mad About Physics, p. 91, 227.

Janice VanCleave, "Up Hill", 200 Gooey, Slippery, Slimy, Weird, Funny Experiments, p. 94.

Mail Questions and Comments to:  Dale Stille