Student "edition" found at {csi dot journalspace dot com}.

Maybe I shouldn't have started this blog now, not with everything that's been going on.

In my general science requirement mechanics lecture class, they have had their second exam, where I was surprised that the students were still answering (or trying to answer) when the bell rang.

I don't think it was all because of the doors to the classrooms still being closed when we got to the hallway that morning - because the security personnel assigned to open the doors was absent and the guard tasked to do his work was late in performing it.

There were not as many errors as last time in assigning the wrong quantities, such as acceleration and displacement, but there were several instances in the wrong velocity being used (initial for instantaneous and velocity for vertical motion being used for horizontal). The same also goes for equations used.

Because the usual overachiever was out of campus during the test itself, he was given a special exam that was more to his capacity.

He apparently wasn't prepared for an exam of that sort, and he didn't get his usual perfect (or sometimes above perfect) score.

In the end the percentage of the exam had to be adjusted to over ninety points instead of being over one hundred like the first exam.

In the lecture after the exam, I finished the topic on projectile motion, going into the special case of an object going off a horizontal surface such as a cliff or a table top, where the vertical component of the initial velocity is zero, and the initial angle is zero, going to negative afterwards.

In the next lecture, it was finally about forces in two dimensions as seen from the side view, which now has gravity applied.

I gave the theoretical part about the specific forces (weight, normal, tension and frictional) first before proceeding to the examples.

With five minutes to go in the period, I told them to get their exercise notebooks.

They started to complain about not having enough time for an exercise, until I told them I wanted them to compute for their midterm standing.

Session 1541 is still confused between vertical and horizontal velocity. Class dismissed.