Session Date
Lesson Topic
balanced-unbalanced forces and net force
Lesson Outline
Using a weighted cart, the concept of rest being a state of motion with only gravity and the normal force acting on it. That the forces are balanced was presented by equal vectors showing gravity and the normal force. A large mass was attached to 2 spring balances, one at the front and the other at the rear, and both balances were pulled with the same force showing. No motion was produced because the forces were equal and opposite. To produce motion, one spring balance had to be pulled with a greater force than the other, producing unbalanced net forces. Definitions of both balanced and unbalanced net forces were written, as well as the requirement that forces be unbalanced for motion to occur. The method of determining the sum of the forces was worked on, utilizing her math papers hanging on the wall. The 4 different force, magnitude, and direction vectors which could act on an object were drawn and the method of determining the net force shown. A few problems from the textbook were used to reinforce the concept and method
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
The conceptual understanding of the material is much easier for Nicole to work with the mathematical part. Constant repeating of concepts through examples and demonstrations help to solidify them, and also constant repeating of the math methods helps. She was able to more easily solve some math questions, the more she was given to do
Session Hours
1.00
Hours Attended
1.00
Entry Status
Review Status
Student Name(s)