College Physics I Physics 1401 Eighteenth Class

1
College Physics I - Physics 1401Eighteenth Class

• Force Problems
• Multiple Objects
• Ranking Tasks - Kinematics
• Lab Activity on Horizontal Atwood Machine

2
Force Problems

• Multiple Objects
• Tractor and Cart Problems
• Example - 50A, 51A, 52A
• Atwood Problems
• Horizontal Examples - 60B 60C
• Inclined Example - 63B
• Atwood Example - 65A

3
Ranking Tasks

• A conceptual exercise
• The word statement
• Statement of the situation with information given
• Question of what is to be ranked
• The figures
• Usually 6 to 8 similar figures, but with
  different values
• The ranking
• Usually from highest (greatest) to lowest
  (smallest)
• Alternatives
• The reasoning statement
• The confidence level

4
Ranking Task Exercises

• 1-D Kinematics
• Motion Diagrams - pages 2 3
• Vertical Motion - page 7
• Motion Dot Diagrams - page 12

5
Next Class

• Homework to be Turned In
• Forces 2 Problems
• Ranking Tasks - Kinematics
• TEST 2 on Tuesday, March 28th
• More ranking tasks and start 2-D Motion MRPS
• Modified Atwood Machine Activity