Forces Preview:
There's a short assignment about mass, weight and net force. It's due Monday night.
The readings linked to here should help you answer the questions.
http://www.physicsclassroom.com/Physics-Tutorial/Newton-s-Laws
Read lessons 1 and 2. Pay particular attention to the section "Confusion of Mass and Weight" on the Types of Forces page, and the Determining the Net Force Page.
When you're done answer the new questions on the UT homework page.