Newton's 2nd Law - Atwood Machine
PHY 100 & 103
Lab PDFDemonstrates how force is related to the acceleration of the mass to which it is applied. The Atwood Machine allows the net force on a mass to be varied in order to see the effect on velocity and acceleration of that mass. Students will first calculate the theoretical acceleration of a system using merely given weights and Newton's 2nd Law. They then verify that result by setting the masses into motion and measuring distance and time to allow an alternative calculation of acceleration using kinematic formulas.
Equipment
| Name | Location | Quantity |
| Timer - 389 | JE-105A-D62 | 1 per table |
| Weight Hangers, 50g | JE-105A-D44 | 2 per table |
| String, Pulley, Atwood | JE-105A-D69 | 1 per table |
| Pulleys, Atwood | JE-105A-TopofFileCabinet | 1 per table |
| Meter Stick - 1.75m | JE-105A-(105 Door-L) | 1 per table |
| mass, 1 kg Giant Pink Foam | JE-105A-X shelves top | 1 per room |
| Mass, Hooked - 500g | JE-105A-X30 | 2 per table |
Notes
Put two 500g hooked masses on each table. The 500g hooked masses are found on shelves X30-X35. Some instructors (such as Prof. Dolan) prefer a trailing string tied to the bottom of each 500g hooked mass. Find out in advance whether this is required. The trailings strings are in a small plastic bag in D69. Each lab bench should already have a table clamp, rod, and lattice rod clamp attached to the rod.
Make sure that the room has plenty of paper.
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Item modified on 2009-09-02 13:07:45 by camaratam1.