Today, we'll review Newton's Second Law through interactive lecture. We'll learn how to use our free-body diagrams to solve problems using Newton's Second Law.
In addition, we'll talk about the results of the lab and learn about what the accepted value is for our constant.
Finally, we'll do some practice on applying Newton's Second Law by first collaboratively solving problems on Simple Forces CompuSheets #1 (SOLUTIONS).
Presentation: Free Body Diagrams, How to use Newton's Second Law
Homework: ❗Force Mass & Motion Lab quiz next class - Thursday, October 8th. Finish Simple Forces CompuSheets #1 (SOLUTIONS) if you did not finish in class. Practice drawing force diagrams on the 📄 Free Body Diagrams Worksheet. Look over your notes to make sure you understand what we've done so far with Newton's Second Law.
❗Force Mass & Motion Lab quiz TODAY!
After the quiz, we'll work on problems from the test questions bank. Tonight will be one of the few nights I will allow you to bring your classroom journals home.
Homework: Continue working through the test bank questions. QUIZ on free body diagrams and Newton's 2nd Law Thursday, October 15th!
Optional Extra Practice: All of FYP: Newton's Laws of Motion (SOLUTIONS). 📖textbook - chapter 4: #17, 24, 25, 34, 66. (optional: # 15, 19, 20, 22)
Today, we'll learn about a class of problems called "elevator problems." You'll learn that a bathroom scale does not really measure your weight in all situations.
Then, do Elevator Problems #1-5. (skip #1b) (SOLUTIONS). Then work on vertical Newton's Laws Problems from the test bank. Watch the following videos which may be useful in understanding elevator problems if you need clarification. These types of problems are easy to solve using the techniques that we've already been using including drawing free body diagrams and writing ΣF statements. Remember, a bathroom scale will read your "apparent weight" or the NORMAL force!
If we finish early, we'll start the problems from the next post.
Presentation: Free Body Diagrams, Elevator Problem
Handout: Elevator Worksheet
Homework: QUIZ on free body diagrams and Newton's 2nd Law (including elevator problems) on Thursday, October 15th. Watch the videos below for more about elevators.
Optional Extra Practice: Practice drawing force diagrams on the 📄 Free Body Diagrams Worksheet. Do Elevator Problems #1-5. (skip #1b) (SOLUTIONS). #1-13 only of FYP: Newton's Laws of Motion. SOLUTIONS.