November 21, 2014 at 09:29AM

Developing the idea behind our investigation of how Fnet is related to acceleration. #180tweets

November 21, 2014 at 08:52AM

Building a model for unbalanced forces, measure F of spring and acceleration. Fs = Fnet here. #180tweets
The springs are really weak, 1.1 N/m, can be purchased here. Worth every penny.

November 12, 2014 at 08:11PM

Measuring the magnetic field of a wire using earth’s field and angle deflection of a compass. #180tweets

November 12, 2014 at 10:13AM

Using two fan carts, one pulsing on for 2 sec, to show balanced forces=CV, unbalanced=CA #180tweets

November 03, 2014 at 07:40PM

Mapping equipotential lines of point charges now. #180tweets

November 03, 2014 at 07:16PM

Mapping equipotential lines using DC phone chargers as the constant V power supply. #180tweets