Day 24: Graphing Constant Acceleration

image

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.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s