oct 23

Make sure to do the analysis from your sowbug race lab. You made a data table of time...displacement...and distance sowbug actually travelled. Do the average velocity for the whole displacement. Make sure to have a direction with it. Do the average speed for the entire distance travelled. Do a graph of the displacement over the whole trip. Do a graph of the displacement over the whole trip. .................................................................... Do average velocity for each segment using displacement data. Do average speeds for each segment using the distance data. ..................................................................... Graph the velocities for each interval(from displacement data). Do a second graph of speeds for each interval using the average speed for each interval (from distance data). Questions: 1. Which is faster?...the speed of the bug or the velocity of the bug? Show calculations for each and, explain why! 2. Which interval gave the fastest speed of the bug? Show calculations and explain why. 3. At which intervals is the organism moving at a constant speed? What is the evidence for this from at least two graphs? 4. In which intervals is the organism moving at a negative acceleration? Show calculations and evidence from a graph. 5.In which intervals is the organism moving at the greatest positive acceleration? Show calculations and evidence from a graph.

Oct 17

Mr Hennessy will be taking care of you the next two days while I am at a conference. when we get together Monday, make sure you have the results of the sow bug race. we will be calculating distance , displacement, velocities, speeds, and accelerations of your sowbug.

oct 11

Do the ez motion problems in student resources. Use the five step process for each one that requires calculations. Use the MCAS formula sheet if necessary, all the motion problem formulas are on the first left hand column. If you are going on the field trip you are still responsible for handing in the homework. Have fun on the field trip.

Finish looking at the presentation. Know the difference between scalar and vector measurements. Review the additive and subtractive rules for vectors and how to draw a free body diagram. We will continue tomorrow with the rest of the powerpoint and do some velocity problems.

oct 2

Prepare for a quiz on scaling and scaling proportions of actual and scaled drawings/models.

Tomorrow you will be with Mr. Hennessy to do problems related to finding unknowns using scaled (scale vs. actual) proportions.