Tablecloth Pull, 1F20.30

Concept Table: [:Newtons1STLaw#InertiaofRest: 1F20. Inertia of Rest]

Location:

• Cabinet: [:MechanicsCabinet:Mechanic (ME)]

• Bay: [:MechanicsCabinetBayA7:(A7)]

• Shelf: #5

attachment:BeakerOnCloth02-400.jpg

Abstract:

AKA Beaker and Cloth. Pull the tablecloth out from under a place setting or a beaker of water and observe that the item or items remain on the table, illustrating Newton's first law.

Important Setup Notes:

• This demo will require practice.

Setup and Procedure:

1. Place the tablecloth on a table.
2. Partially fill a beaker with water. Add food coloring to water for contrast.
3. Place beaker on and near an edge of the tablecloth.

Cautions, Warnings, or Safety Concerns:

• Make sure to perform this demo with adequate distance from the audience to prevent exposure to flying glass in the event of a failed demo.
• Make sure the cloth being used is free of seams or other defects that could trip the beaker.

Demonstration:

With a quick decisive jerking motion, one pull the tablecloth out from under the beaker or something that has weight.

Videos

• [http://youtu.be/gfEvFtQWvUY Tablecloth Pull, 1F20.30]

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

References:

• [http://sprott.physics.wisc.edu/demobook/intro.htm Clint Sprott]

[:Instructional:Home]