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Fidget Spinner Energy Dissipation Experiment

SKU GP00012
Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99
  • Spin up some science with a fidget spinner! Fidget spinners are an outstanding example of an exponentially decaying rotational system. This guide describes how to use a photogate to unlock that process. Students measure the spinner rotational rate and calculate the energy lost as a function of time. Then students fit the measured data with a 1-parameter exponential decay function. No spreadsheet required!
  • Base, rod, and all clamps are made of high-quality metal (cast iron and stainless steel). Spinner made of plastic with high-speed metal bearings.
  • Some assembly required.
  • Kit comes with a step-by-step educational guide.
  • Includes spinner, base, rod, and all clamps. (Photogate not included)
Backorder
May take up to 60-90 days to ship
Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99
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This product is not in stock, but is available to order. Backordered items can take up to an additional 60 to 90 days to be shipped.

All fidget spinners eventually stop. No matter how good the bearings are, eventually friction saps away the rotational kinetic energy and brings the spinner to a halt. The basic shape of most spinners (three-arm shape) means they can be used easily with a photogate to quantify the way in which energy is lost. This can be done with fidget spinners of almost any shape and size. This guide describes how common laboratory equipment can be used to turn this toy into a teaching opportunity.

We use a photogate to measure the rotation rate of the fidget spinner. Then we calculate the normalized energy of the spinner and fit the resulting curve with an exponential decay function. While a spreadsheet can be used for advanced classes, it is not required. The guide describes how to do this with a NeuLog Photo Gate logger sensor, but any photo-gate with timing logger can be used. Photogate not included(recommended Neulog Sensors are NUL209 + USB200).