10/9/13

Projectiles Are Flying!

Physics D conducted an investigation about the motion of horizontally-launched projectiles. First, they had to predict an impact point and hit a target placed at that point, then they were given an impact distance and had to calculate and calibrate the launch velocity needed to hit that target. Folks did a great job and we'll review horizontal projectiles tomorrow before continuing to practice with projectiles launched at an angle. This was were F Block was today - working independently or in pairs/groups to work on problems involving projectiles launched at an angle. We'll pick up right where we left off tomorrow, but one thing I noticed is that people are having a hard time recognizing information given to them and information they calculate. Make sure to think carefully about what information the problem provide (use units to give you clues) and when you solve for a piece of information, label it appropriately with unit and variable so you don't forget what it is and how to use it.

Honors Physics reviewed their lab with horizontally-launched projectile and used that as a model for working problems with these types of projectiles. We reviewed the nature of projectiles and projectile motion and then took time to work problems in class involving this type of motion. Tomorrow, we add projectiles launched at an angle.

Intro Physics completed their discussion of circular motion, then turned to the nature of forces and their interaction with matter. We defined 'net' force and discussed the vector nature of forces, which allows us to calculate net force acting on an object. Tomorrow, we begin to look at a specific force - friction - and that will form the basis of our lab investigation for this particular unit of work.