Re: [Phys-L] motion lab

["Anthony Lapinski" <Anthony_Lapinski@pds.org>]

I like this interesting/unique idea, with no batteries/cars to contend
with.

Where do you buy these tubes?



Phys-L@Phys-L.org writes:
> We use the "bubble sticks": clear plastic tubes filled with some colored
> hydraulic fluid and enough air to form a 1-2 cm bubble. Measure the time
> for the bubble to travel to position X  after turning it over, plot X vs
> t. Slope is speed, y-intercept is the starting position.  The speed is
> angle dependent.  Challenge clever students to find the maximum speed.
>
> > -----Original Message-----
> > From: Phys-l [mailto:phys-l-bounces@phys-l.org] On Behalf Of Anthony
> > Lapinski
> > Sent: Thursday, September 19, 2013 3:12 PM
> > To: phys-l@phys-l.org
> > Subject: [Phys-L] motion lab
> >
> > Does anyone do a "constant velocity" lab? Like using constant velocity
> cars
> > (Tumble Buggies)? If so, what do students measure (just d and t?)? Do
> they
> > make a graph? Cookbook or open-ended? Is it more about measuring than
> > finding the actual speed?
> >
> > I'm looking for something low tech (for high school) and meaningful.
> Just
> > stopwatches and meter sticks. Wanting some ideas to make a "basic" lab
> like
> > this interesting...
> >
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