3-26+blake+votilla

Hi I am Blake Votilla and I am doing the physicsis journalist for March 26, 2009. Today we started out class as we always do with the daily question. One thing that makes today different from other days is the fact that todays daily question is very important. The question was displayed on the screen and reads as follows: Why does the vertical component of velocity for a projectile change with time, whereas the horizontal component dosent? I will now answer this very important question. The horizontal component does not change because inertia is the only force acting on it, and it does not gain or loose speed horzintally. The vertical component is different though, it does change with time. The vertical component changes over time because there is another force acting on it called gravity, gravity tries to pull it down to the ground. The question was very important because that is what we have been learning about the past couple days. We have been watching videos in slow motion and demonstrations about it. After we went over the daily question Mr. Manning ordered all of the students to take out page six from their notebooks. Page six is titled “Projectile Trajectory Activity: Physics 1” we worked on questions one and two yesterday and today we worked on question three. This question has to do with finding the velocity and acceleration for both horizontal motion and vertical motion. We all learned an equation that will help us do that. On the back of the page was a graph and we ploted the points and it further explained how the horizontal component does not change while the vertical does. Next was a question, Mr. Manning showed us a picture and we had to find out what the boys pitching speed was.