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# Re: [Phys-L] motion lab

Our buggies use 2 C cell batteries. We also replace one c-cell battery with a slug so they run on 1 c battery.
After kids have characterized their buggies we run a challenge with varying scenarios. Basically....
Car 1 starts at this position going that way, car 2 is trying to catch car 1 from behind. Determine where they will meet.
Scenario 2:
Car 1 starts .... car 2 is going to cut off car 1, coming from the other direction like a cop chase scene road block. At what point will the two cars meet (1 going +x, the other going in -x direction).
Have a good one.
Paul.

...::. Sent from a touch screen. .::...

-------- Original message --------
From: Aburr@aol.com
Date: 09/19/2013 6:31 PM (GMT-06:00)
To: Phys-L@Phys-L.org
Subject: Re: [Phys-L] motion lab

definitely!! Who cares about the speed? But measurement is at the core of
physics.

Run a speed competition.
How does an incline (up or down) plane affect the speed?
Battery powered? How does the state of charge affect the speed
If you want statistics you can go into
average
standard deviation
Does one car really run faster than another?

Alex. F. Burr

In a message dated 9/19/2013 2:19:18 P.M. Mountain Daylight Time,
Anthony_Lapinski@pds.org writes:

Is it more about measuring than
finding the actual speed?

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