Notes:
Please be responsible, stay focused, be good independent learners, so that we as a class don't fall further behind.
This is a big class, please clean up and push your chairs in when class ends
WARM-UP: (6min)
1. Define "Projectile"
2. Give five examples of common projectiles, and one example of an uncommon projectile
3. Define "trajectory"
4. Make a quick sketch you think shows the trajectory of a baseball hit at an angle of 30* above the horizontal
CLASSWORK: Complete each section in your notes. I'll check for credit Wednesday
1. Reading Comprehension: If you didn't read CH 6.1 (as assigned for HW), you'll need to review the first two paragraphs on pg 148 now as you'll need the info there to complete today's assignment.
A. Ignoring air resistance, which force(s) are acting on a projectile flying through the air?
B. For a moving projectile, does the vertical velocity change while the object is flying through the air?
C. For a moving projectile, does the horizontal velocity change while the object is flying through the air?
2. Intro to Projectile Motion: Pause the video and/or rewind whenever necessary
A. Copy the "Basic strategy for solving any projectile motion problem"
B. Answer: How many knowns do you need in each direction?
C Answer: What do we usually solve for?
D. Answer the EdPuzzle questions. Video LINK
3. Example Problem part 1:
A. Sketch the problem. Include a FBD and coordinate system
B. Convert mph to m/s in your notes
C. List the two common mistakes for proj. motion givens
D. Answer the EdPuzzle questions. Video LINK
4. Example Problem part 2:
A. Follow along with Mr. P and solve the problem, copying the solution in your notes.
B. Answer the EdPuzzle questions here. Video LINK
5. Problem Solving Strategies (Notes)
A. Copy the Problem Solving Strategies from page 149 into your notes. Title the section "Problem Solving Strategies"
B. Did Mr. P use all these strategies? Any he didn't use?
6. Practice Problems
pg 150 1-3
pg. 164 32-34
HOMEWORK:
Anything from the CW that doesn't get finished, is HW due Wednesday.
Kahoot questions from last week are now due Wednesday, and we'll play Wednesday
#Goals: SWBAT...
1. Create an equation sheet that you can use throughout the semester
2. Solve problems by using Newtons 2nd law for Rotational Motion
3. Describe Newtons 2nd law for rotation
4. Solve problems with with torques, forces, and inertia components
WARM-UP & HW Check:
A. On a blank sheet of paper, make a "Table of Friends"
Copy the equations from pg 199, Table 8-1
B. If you have two forces applied to the see-saw on page 204, how many torques would you have? What if there was only one force - how many torques? Three forces?
C. Find the angular acceleration of a wheel that starts at rest, and in 15s, accelerates to 8.0 rev/s
CLASSWORK:
1. Quiz
2. HW Check & Review, presented by your peers :)
24: Maria/Ariella
93: Sheila/ Patty
94: Fernando/ Xiomara
34:
76: Adriana/ Alina
83: Kevin / Joe
95:
98: Andres / Andrea
SKIP TILL TUESDAY 3. Newtons 2nd law & Ex prob 4 notes
A. Newtons 2nd law is defined as: F=
B. If we solve this equation for accel (a), we get a=F/m
C. Similar to linear motion, for rotational motion... α=τ/I
D. Units: rad/s2
SKIP TILL TUESDAY 4. Practice Problems:
Prac 25-29
Tutoring available after school Mon, Tues, and Wed until 4:30. Lunch almost every day.
HOMEWORK:
Watch this lecture on Center of Mass. I won't be lecturing on this in class, so be sure to
take notes, and write down questions for class Tues.
https://www.youtube.com/watch?v=tk7Q_2CGKhs
Here's a helpful picture to go along with the video:
Reading Quiz Tuesday on Equilibrium - Read pg 212-215
Two thinking problems: pg 217 40 & 41
Add the equations from Table 8-2 (pg 206) to your "Table of Friends"