## Saturday, January 21, 2012

### Blabbering Pine Marten

## Tuesday, January 17, 2012

### TI-Nspire CX CAS Blabberized

## Monday, January 16, 2012

### LEGO NASA TI Project Explore! J-term

__Beginning Challenges__ –

q 1. Make a robot that moves at a constant positive velocity. Graph this. Find the velocity.

q 2. Design and program a robot to move with a constant negative velocity. Collect data of this motion and graph the data. Calculate the velocity.

q 3. Collect data for 10 trials of the LEGO robot moving at a constant speed. Is it the same speed for each trial? Does it lose power? What is the velocity for the first trial and for the last trial? Power is the rate at which energy is used or the rate work is done. Kinetic energy, the energy of motion, is ½ m v^{2 }. Calculate the kinetic energy and the power for the 1^{st} and last trial.

q 4. Design and program a LEGO robot to move with a constant velocity, then with a zero velocity, and finally a negative velocity. Collect the data. Graphically show that this challenge was accomplished. Find the velocity for each segment.

q Bonus. Program a LEGO robot to do a random TI-Nspire Vernier DataQuest Motion Match.

q Acceleration: Program a robot move with a smooth positive and negative acceleration. Graph it and calculate it. (See the video made by one of the teams.)

q Friday competition. Using only the constraint of time, do the calculation and use the software to program your LEGO robot travel a surprise distance.

__Next Challenges__ -

q Construct a wind turbine that will turn freely when a fan blows on it. Use a photogate to calculate the angular speed.