Cut the String, 1D55.15

Topic and Concept:

Motion in Two Dimensions, [:MotionIn2D#CentrifugalEscape: 1D55. Centrifugal Escape]

Location:

Cabinet: [:MechanicsCabinet:Mechanic (ME)]
Bay: [:MechanicsCabinetBayA1:(A9)]
Shelf: #1
attachment:BallCutString03-400.jpg

Abstract:

Using a homemade apparatus, a ball is put into a circular trajectory. A string connecting the ball to a rotating arm is quickly cut, and the ball flies off tangent to the original trajectory.

Equipment	Location	ID Number

Apparatus w/Spool	ME, Bay A9, Shelf #1
Ball	Found w/Exacto Knife, Spares in ME, Bay A13, Shelf #3
Exacto Knife w/Adjustable Stand	ME, Bay A9, Shelf #1
Lead Block	Rod and Clamp Cabinet

Important Setup Notes:

This demonstration requires a minimum 24 hour notice.

Setup and Procedure:

Make a Setup check list.
...

Cautions, Warnings, or Safety Concerns:

List any Warnings....
Demonstration may require practice.

Discussion:

Using a homemade apparatus, a ball is put into a circular trajectory with the centripetal force being provided by a rotating rod. A string connecting the ball to the rod is quickly cut, and the ball immediately assumes a linear trajectory tangent to the original trajectory in accordance with Newton's first law.

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Videos:

[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]

References:

List any references

[:Instructional:Home]

-  ⇤ ← Revision 1 as of 2012-06-11 17:09:25 → 
  Size: 2047
  Editor: srnarf
  Comment:
+   ← Revision 3 as of 2012-06-11 18:16:42 → ⇥
  Size: 2169
  Editor: srnarf
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-Deletions are marked like this.
+Additions are marked like this.
 Line 10:
- * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)], Waves & Sound (WS)....
 * '''Bay:''' (A? or B?) Like [:MechanicsCabinetBayA1:(A1)]
 * '''Shelf:''' #1,2,3.. (Use "T" for items that are on top of that cabinet bay)
+ * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)]
 * '''Bay:''' [:MechanicsCabinetBayA1:(A9)]
 * '''Shelf:''' #1
 Line 14:
-(attachment photo showing the fully set up demonstration)
+ attachment:BallCutString03-400.jpg
 Line 17:
+ Using a homemade apparatus, a ball is put into a circular trajectory. A string connecting the ball to a rotating arm is quickly cut, and the ball flies off tangent to the original trajectory.
-Line 18:
+Line 19:
-Insert description of apparatus, its component, what it is demonstrating.
 Line 22:
-||apparatus||ME, Bay B1, Shelf #2|| ||
||all other parts||ME, Bay B1, Shelf #2|| ||
||...||ME, Bay B1, Shelf #2|| ||
||Possible supplies that are needed||Rode and Tack Cabinet|| ||
||...|| In Lecture Halls|| ||
||...|| Stock Cabinet || ||
||...|| Stock Cabinet || ||
+||Apparatus w/Spool||ME, Bay A9, Shelf #1|| ||
||Ball||Found w/Exacto Knife, Spares in ME, Bay A13, Shelf #3|| ||
||Exacto Knife w/Adjustable Stand||ME, Bay A9, Shelf #1|| ||
||Lead Block||Rod and Clamp Cabinet|| ||
-Line 32:
+Line 29:
- *  '''''This demonstration requires LN2'''''
 *  '''''Back-to-Back lectures is NOT possible; We'll do one lecture one day and the other the next day.'''''
-Line 47:
+Line 42:
+  Using a homemade apparatus, a ball is put into a circular trajectory with the centripetal force being provided by a rotating rod. A string connecting the ball to the rod is quickly cut, and the ball immediately assumes a linear trajectory tangent to the original trajectory in accordance with Newton's first law.
-Line 48:
+Line 44:
-Insert description of demonstration, how is the demonstration preformed.

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fw: Diff for "Cut_the_String"

Cut the String, 1D55.15