Okay. I have a test coming up soon, and I was wondering how to explain Weight and Friction. Mass is the stuff inside an object, so what is weight?

And how do you describe friction?
Thanks for reading, hope you can help.

Weight is the attraction of an object as a result of gravity.

http://theory.uwinnipeg.ca/mod_tech/node25.html

http://en.wikipedia.org/wiki/Friction