®
Fan Accessory
Introduction
2
Introduction
The PASCO ME-9491 Fan Accessory mounts on any PASCO Cart for use with a
Dynamics Track (ME-9429A or ME-9452) to demonstrate principles of motion. The
self-propelled Fan Accessory facilitates students’ understanding of Newton’s Second
Law of Motion because the fan produces the applied force, and all the mass of the
system is in one place. The mass and force can be adjusted for a variety of force
experiments.
Specifications
Assembly
assembly on the Dynamics Cart
Operation
1.
Change the speed of the Fan Accessory by using two, three, or four batteries.
When using less than four batteries, insert the slugs as necessary to complete the
circuit (Figure 2).
2.
Store unused batteries or slugs in the storage rack on the top of the Fan Acces-
sory.
Mass of Fan Accessory (with 4 AA
Energizer™ batteries and mass slugs)
1
approximately 310 g
Mass of aluminum slug
approximately 20 g
1
Note: The masses of batteries of different brands vary slightly.
Snap the sides of
the Fan Accessory
over the rails of the
Cart.
Figure 1. Attaching the Fan Accessory to the Cart
Use the aluminum
slugs as necessary
to complete the
electric circuit.
Figure 2. Supplying three different voltages by installing two, three or four batteries.
