Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Use a force sensor and an accelerometer on a cart. Zero both. Startcollecting
data, and grab the hook of the force sensor. Wiggle the cart backand forth so
that the only horizontal force applied to the cart is through theforce
sensor.force
The graph of the acceleration will be the same random shape as the
graph, indicating that there is a deep connection between force andof how
acceleration. Then make a plot of force vs. acceleration. Regardless
the cart was moved, the force vs. acceleration graph is a straightline
passing through the origin. The slope is the (inertial) mass of thecart and
sensors. Of course, this then begs the user to add mass to the cartand try it
again.independent
The neat thing about doing the lab this way is that you're making
measurements of force and acceleration, AND that you're showing thesecond law
for general, time-varying forces, not just constant forces.conference all
My apologies if this idea has already been posted; I'm at a
week and only have occasional Internet access.
__________________________________
John E. Gastineau john@gastineau.org
953 National Road, #163 (304) 243-9636 voice
Wheeling WV 26003-6440 (304) 243-9637 fax
USA http://gastineau.org
<