HP Cycle 7

🟢 8: T 10/13 - 📖 vertical N2L problems

Today, we'll practice with Newton's 2nd Law with the force of gravity and vertical Newton's 2nd Law by working through some problems.  If you have not yet done the problems on the Elevator Worksheet, do that first.  If you'd like to take your classroom journal home today, you may.

Handout:  Elevator Worksheet (revised)  ANS: a. 500. N, b. 602 N, c. 500 N, d. 449 N, e. 398 N, f. 500. N, g. 551 N, h. 0 N 

Homework:  Work on practice problems.  QUIZ on free body diagrams and Newton's 2nd Law (including elevator problems) NEXT CLASS - Thursday, October 15th!

Optional Extra Practice:  #1-13 only of FYP: Newton's Laws of Motion.  SOLUTIONS.📖 Mastering Physics problems from Chapter 5 in your textbook "Ch 5 - N2L 1-D basic problems":  #6, 9, 11-13, 15, 19-23, 53, 55, 60, 64.   

⭐PSAT ⭐ Wednesday, October 14th⭐ No class⭐

🟩❗8: Th 10/15 - Newton's 3rd Law

QUIZ on free body diagrams and Newton's 2nd Law (including elevator problems) TODAY!

After the quiz, we'll start by doing a problem with an applied force on a system of two blocks.  Remember, when we have two blocks, then we can draw a free body diagram of each object as well as draw a third free body diagram of the system as long as both objects have the same acceleration.  

Handout:  Procedure for Newton's 2nd Law Problems

Presentation:  Newton's 3rd Law Presentation

Homework:  Look over your notes from today's presentation, watch the videos below:

If you missed today's lesson, please watch the two videos below.

For some real-life examples of Newton's 3rd law, check out the videos below!

💚 8: F 10/16 - two block systems & pulleys

Today, we'll start by doing a problem with an applied force on a system of two blocks.  Remember, when we have two blocks, then we can draw a free body diagram of each object as well as draw a third free body diagram of the system as long as both objects have the same acceleration.  

Then, we'll look at what a pulley does... basically it changes the direction of the force.  Here, we'll start looking at Newton's 2nd Law problems with more than one object in the system.  We'll have to write a ΣF statement for each object as well as the total system.  

Presentation:   Two Block Systems

Handout:  Two Block Systems Activity

Homework:  Try to finish at least the part of the lab (1 or 2) that you took data for.  Look over your notes from today's lesson, watch the videos below: