Unit Four Review and Answers

Here is a link to the Unit Four Review Questions.

https://drive.google.com/file/d/0B54jRZBDezIHdzV2c0NiVG5rdms/view?usp=sharing

And another to the Answer Sheet.

https://drive.google.com/file/d/0B54jRZBDezIHUGRGMVFTb3MzR2s/view?usp=sharing

Gecko Friction

In some classes I mentioned that Geckos use frictional force to climb surfaces in a surprising way - not through surface irregularities and tiny hooks, but through electrostatic attractions.

Here is a link to a NOVA episode about it.  The gecko section starts at about the 11 minute mark.

http://www.pbs.org/wgbh/nova/tech/making-stuff.html#making-stuff-smarter

Friction Lab

Follow this link for the Friction Lab Report Guidelines and scoring guide.

https://docs.google.com/document/d/1MaY_4GOS8PUbUw6dAtp6Us_UVFLOHyfN657sR109U5Q/edit?usp=sharing

The lab is due Dec. 12.  Please include it in your Google Drive Lab Document as the first item.

Sixth Period Physics with Second Grade Visitors