Session Date
Lesson Topic
parallegram method of resultant determination
Lesson Outline
Using a set up of two spring balances, cord, masses, and a ringstand attachment, the forces present in each balance under different conditions was demonstrated and recorded. these included one spring at 90 deg.with the weight, 2 springs at 90 deg. with the weight, 2 springs at 45 deg with the weight and 2 springs at greater than 45 deg. Vector diagrams were drawn for each, and construction of a parallelogram used to determine the resultant of the forces. The amount of increase in tension as the ropes were separated was determined. A series of review questions on chapter 2 was used as a review for tomorrow's test.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
Abby, as usual, was very attentive and involved in the demonstrations.
Session Hours
1.00
Hours Attended
1.00
Entry Status
Review Status
Student Name(s)
Subject