Monday, 24 February 2014
I admittedly rushed the heck out of projectile motion this year. But I did it intentionally to stay on schedule with finishing the year with forces, energy, and momentum. We solved only problems with objects launched horizontally. A few of my classes got to watch parts of the Mythbusters episode called “Knock Your Socks Off”, which included the Bullet myth. I put together a playlist that includes the relevant parts. If you’re pressed for time, you could watch just parts 1, 4, and 5.
Kids still want to believe that the fired bullet will stay aloft longer. A few told me outright they didn’t believe the results. We drilled into why they felt that way and I learned they’re assuming you fire the gun at least a little above horizontal.