Phryday!

Intro Physics continued with their discussion of free-fall motion with a look at the specific impact of air resistance on objects and how it contributed to the concept of terminal velocity. Remember that, without air resistance, all objects would experience an acceleration of -9.81 m/s², regardless of mass or size. It is the cumulative effect of air resistance (increases with increasing velocity) that ultimately grows to a size to balance the object's weight and cause the object to fall at constant speed. We then dipped our toes into the arena of projectile motion and will conduct an investigation on the motion of a horizontally-launched projectile on Monday. Expect a test on Forces (up to Newton's 3^rd Law of Motion) next Friday.

Physics D completed their static and kinetic friction lab today and Physics F/Honors Physics discussed that lab during their class periods. We used the lab to help highlight the concepts of weight and normal force and will take on friction formally on Monday. Remember that our exam on Chapter 4 is next Thursday and the lab write-ups are due on Friday.