DAY 36
Goals: SWBAT...
1. Describe how weight and mass are related
2. Differentiate between actual weight and apparent weight
WARM-UP: (10 min)
1. Free Body Diagram (FBD)
Draw an FBD for the following scenario: Blimp Photo
The Goodyear blimp is taking off for a flight. It is accelerating to the east (right) and climbing at an increasing rate.
A. Draw force vectors showing the magnitude and direction of each force the blimp is experiencing.
(Be sure to show the appropriate magnitude)
B. Prepare for Stump the Chump (below). You need to have your questions ready.
CLASSWORK:
1. Stump the Chump
This is a reading game, meaning you will need to read to be successful. Let's review, what do you need to do to be successful? READING!
Goals: You'll be able to recognize symbols describing forces, define forces based on their symbol, describe Newton's 1st & 2nd laws, and define vocab terms
Instructions: Individually, Read pg 92-97. While reading, create:
one question for pg 92,
one for 93,
two for 94,
two for 95,
two total for pg's 96 & 97
2. Notes: What is a Force?
Title | Definition | Unit | Equation(s)
3. Newton's 2nd: Problem Solving Using the Sum of Forces
pg 97 Example problem #1
∑F = FA + FB + ....
Practice Problems: 15-18 pg 101 #25
4. Apparent Weight vs.
HOMEWORK:
pg 101 #23
pg 113 # 64
Practice: As a review of Newton's 1st and 2nd, and a preview of the 3rd, complete:
http://www.sas.upenn.edu/~kennethp/nkdievid2.pdf
(you don't need to print out the handout, but you can if you want)
A. Critical Thinking Questions 1-10
B. Exercises 1-7
Goals: SWBAT...
1. Learn to draw vector components using the tip-to-tail method.
2. Evaluate the sum of two or more vectors in two dimensions graphically
3. Determine the components of the vectors
4. Solve for the sum of two or more vectors algebraically by adding the components of the vectors.
WARM-UP: (10 min)
I've lost my voice (can't find it anywhere...), so you'll need to be independently focused today.
1. Vectors Revisited: Imagine you and a friend are pushing a car directly west. You push with a force of 40N, and your friend pushes with a force of 55N. What is the net force (magnitude and direction).
2. Vectors in Multiple Dimensions: An ant leaves home (the origin), walks 12cm due east, then turns and walk 8cm due south. Using a ruler. sketch the two displacement vectors, put them tip-to-tail as shown on CH5 page 120 (in the margin), and then find the ant's resulting distance from the origin using two methods:
A. calculate the resultant using the Pythagorean Theorem
B. measure the resultant using a ruler
CLASSWORK: (for each CW activity, think about which goal you are meeting. Also, tell me how the activity helps you achieve that goal)
1. Read pages 119-120. In your group, create four reading quiz questions for the section. You have 10 minutes. (2:35)
2. Notes: Introductory Tip-to-Tail Vector Addition Problem. If you have questions, raise your hand and I'll pause the video
Check your notes here: http://www.flippingphysics.com/uploads/2/1/1/0/21103672/0050_lecture_notes_-_introductory_tip-to-tail_vector_addition_problem.pdf (2:50)
3. Practice Problems pg 121 1-3 (2:58)
4. Notes: Introduction to Vector Components. If you have questions, raise your hand and I'll pause the video (3:10)
Check your notes here: http://www.flippingphysics.com/uploads/2/1/1/0/21103672/0052_lecture_notes_-_introduction_to_vector_components.pdf
5. Practice Problems pg 125 5-7 (3:24)
6. Connect activities with goals
***Need help with Cardinal Directions?***
Go here --> How to use Cardinal Directions with Vectors
HOMEWORK:
pg 121 #4, pg 125 8-10 (due wednesday)
Friday HW TBD