Re: pinhole acceleration lab ideas

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From: Jhumki Basu (sjbasu@hotmail.com)
Date: Sat Nov 18 2000 - 15:55:19 PST 

From: "Jhumki Basu" <sjbasu@hotmail.com>
Subject: Re: pinhole acceleration lab ideas
Date: Sat, 18 Nov 2000 23:55:19 GMT
Message-ID: <F205s2gu59Vvjvxo6Am000017d1@hotmail.com>

Modesto, at the Exploratorium, talked to me about designing a bag that drips
water at a constant rate (maybe 20 drips per second). You can put the bag on
a cart that rolls, then roll the cart down an incline onto a table. When the
cart moves at a constant velocity, the drips are spaced evenly on the
surface on which the cart is running. When the cart accelerates, the drops
are spaced farther and farther apart, showing that the cart is covering more
position each second.

Does this make sense?

Jhumki Basu

>From: schulist@marin.k12.ca.us (Mike Schulist)
>Reply-To: "Pinhole Listserv" <pinhole@exploratorium.edu>
>To: "Pinhole Listserv" <pinhole@exploratorium.edu>
>Subject: pinhole acceleration lab ideas
>Date: Fri, 17 Nov 2000 17:16:38 +0100
>
>I am trying to develop a simple acceleration lab where kids can observe
>somthing that accelerates slowly, mark its changing positions, and make an
>acceleration graph. A simple wind-up toy is the best idea I've had for my
>accelerating object. I'm hoping someone has a better idea, or knows where
>I can purchase some cheap, accelerating wind-up toys that might work.
>Anyone have an idea? Thanks!
>
> Mike Schulist
>
> Miller Creek School
>
>
>
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