1 / 35

Classical Mechanics Midterm 1 and Newton’s Laws

Classical Mechanics Midterm 1 and Newton’s Laws. Midterm 1 Exam Discussion Class Schedule Unit 4 Relevant Equations and How to use them… Unit 4 Homework Hints…. First Midterm “Take-home” due on Friday. Prepare notes Take exam in timed situation Answer questions that were incorrect:

hyman
Download Presentation

Classical Mechanics Midterm 1 and Newton’s Laws

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Classical Mechanics Midterm 1 and Newton’s Laws Midterm 1 Exam Discussion Class Schedule Unit 4 Relevant Equations and How to use them… Unit 4 Homework Hints…

  2. First Midterm “Take-home” due on Friday • Prepare notes • Take exam in timed situation • Answer questions that were incorrect: • Letter response in spaces provided. • Written response for each answer. • Brief justification for answer to conceptual questions (1,2,3,7,9,15,20) • Show all steps in responses requiring calculations. State input data and relevant equations.

  3. Midterm Exam 1 “Score” Distributions

  4. Exam 1 Problem Difficulty

  5. 22/48 correct

  6. 42/48 correct 11/48 correct 41/48 correct

  7. 37/48 correct 43/48 correct 31/48 correct

  8. 31/48 correct 32/48 correct

  9. 36/48 correct 32/48 correct 31/48 correct 12/48 correct

  10. 24/48 correct 9/48 correct

  11. 28/48 correct 32/48 correct

  12. 33/48 correct 12/48 correct 26/48 correct

  13. How difficult was the exam overall? • Most difficult exam that you ever encountered. • Moderately Difficult • Fairly Easy • Easiest Exam that you ever encountered.

  14. How much time should we have had to complete all problems? • 50 minutes • 75 minutes • 90 minutes • 120 minutes

  15. Given sufficient time I could have correctly completed “most” of the problems • True • False

  16. What percentage of the questions were “fair”? • 100% • >80% • >60% • >30% • 0%

  17. Course Schedule: October

  18. Course Schedule: November

  19. Course Schedule: December

  20. Main Points

  21. Main Points

  22. Main Points

  23. Newton’s 2nd Law Acceleration is caused by force. A bigger mass makes this harder

  24. Unit of Force Kinematics units Dynamics unit

  25. Newton’s 3rd Law

  26. Force on Two Masses • A force F is applied to a small block, that pushes a larger block. The two blocks accelerate to the right. Compare the NET FORCE on the block with mass M, to the net force on the block with mass 5M. • A)FM < F5M • B)FM = F5M • C)FM > F5M a 5M F M

  27. Force on Two Masses Net Force • A force F is applied to a small block, that pushes a larger block. The two blocks accelerate to the right. Compare the NET FORCE on the block with mass M, to the net force on the block with mass 5M. • A)FM < F5M • B)FM = F5M • C)FM > F5M Same acceleration, so larger mass has larger net force. a 5M F M

More Related