Thursday, June 16, 2011

Unit 2

In this unit, we focused on Kinematics. We learned all about velocity, average speed, distance, slope, vectors, acceleration, speed, magnitude, more graphing, instantaneous vs average, and more units.

This picture shows a car traveling in one direction at a relatively fast speed. Opposite the car is another car traveling in the opposite direction, also moving at a fast pace. If I were to graph this, it would look something like this:

The point of intersection would be at the moment I took this picture.  (Sorry, backwards) The slope of this graph (distance vs time) is velocity (d/t=v). Velocity is meters per second in this case. I drew the both slopes steep to show that both cars were moving fast. Since both of these cars are ending up in different places, they not only have distance traveled, but displacement too. Distance is defined as total path length, while displacement is the distance between where you started, and where you ended up. If you start and end in the same place, your displacement is zero.

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