Today we raced! Students ran and race-walked across the gymnasium, while their peers timed them at distances of 20, 40, 60, 80, and 100 feet. Once we had all of our data recorded, we began to analyze it by calculating speed from the distance and time measurements. Tomorrow we will graph and further analyze our data as well as conclude our lab.
Kinematics is the fancy word for the the study of how things move. In class we analyzed and interpreted a Distance vs. Time graph and used that graph to describe the motion of an object, whether it was accelerating, moving with constant speed, or at rest. We were even able to calculate the speed of the moving object based on the coordinates of the graph. In our notebooks, we wrote down definitions for velocity (speed and direction of an object) as well as acceleration (the change in velocity of an object. We finished class with a short video that applies kinematics to a real life situation, in our case, football.
Use this video and the links in today's post to check what you know and maybe extend your own understanding of how things move.
We wrapped up Hot Wheels Hustle at the beginning of class then we read about and discussed the difference between speed and velocity. We also watched a music video about speed and velocity by the band They Might Be Giants.