Day 24: Graphing Constant Acceleration


Physics 11 Today we finally graphed data from our constant acceleration lab. There were several hurdles to overcome, most notably the kids getting their head around what a tangent line is.  We finally had some really good discussion with the whiteboards, with students really challenging each other.

Some common pre-conceptions encountered:

  • the velocity time graph should have horizontal lines (like before)
  • points on the graph should be connected with a line
  • a faster starting push on the object should make the v-t graph steeper because it’s going faster

I’m not sure yet how I will deal with the quadratic relationship. If I go over curve straightening, it will certainly be a bit hand-wavy.

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