Testing Motors For The Solar Dragster Race

Torque/Speed Curves In this post I’m going to describe our attempt to measure the power curve for the DC motors used in the Solar Dragster race this year. I’m going to be honest, our efforts weren’t really that successful, but I can at least say that I learned some things that might help for nextContinue reading “Testing Motors For The Solar Dragster Race”

Building The Net Torque Model – Part 3

Appending The Conservative Models After investigating the causal relationship between torque and angular acceleration, I introduced the possibility to the class that perhaps we also needed to revisit the Energy Transfer Model and the Momentum Transfer Model. The students agreed that an object that is rotating must have energy. This was pretty easy to demonstrate.Continue reading “Building The Net Torque Model – Part 3”

Building The Net Force Particle Model (Part 1)

From “The How” to “The Why”: One of the three projects that the students will complete this year is a custom designed and fabricated rocket. One of the requirements of this project is for the rockets to carry a small solid state altimeter that collects vertical position data. This year I decided to give theContinue reading “Building The Net Force Particle Model (Part 1)”

Deploying The Constant Acceleration Particle Model (CAPM)

The APT 1 students just recently finished building and testing (deploying) the Constant Acceleration Particle Model. As stated in an earlier post on studying velocity vs. time graphs for a constantly accelerating particle, the students used these graphs to study how the velocity changed, but also how the graph gave the students a way toContinue reading “Deploying The Constant Acceleration Particle Model (CAPM)”

Building The Net Torque Model – Part 2

Investigating An Unbalanced Net Torque We started by looking at the fact that a disk experiencing a net unbalanced torque also experienced a change in rotational or angular velocity. The students used a rotary motion sensor to measure the angular position and the angular velocity of a disk experiencing a constant torque and the studentsContinue reading “Building The Net Torque Model – Part 2”