DAY 69
WARM-UP:
pg 238 #18
CLASSWORK
1. Momentum and Collisions Lab:
Lab Template": LINK
Your Final Product:
- Google Document with:
A. Intro; Hypothesis; Analysis (Answers to each question); Conclusion
B. Completed data table. (Alternate: You can use a photo of the data table from your lab handout for this)
C. Calculations showing how you found the velocity and momentum for part 1, part 2, and part 3
(show an example of your work for one trial from each part)
D. Data must be shared with me by beginning of class Thursday. Lab Reports will be written in in class Thursday and due next Tuesday
Lab Report Contents & Grading
2pts 1. Introduction: in 2-4 sentences, describe how momentum and collisions are related
2pts 2. Objectives: (given on the lab handout - you can just re-type them)
5pts 3. Data table
10pts 4. Calculations (show your work for one trial from each part)
15pts 5. Evaluation: Write your answers to each question from Part 1, 2, and 3.
Notes: For Part 1, #3, and Part 2, #2, you can calculate the kinetic energy (before and after) for
one trial
#Goals: SWBAT...
1. ... list and describe the basic components of "Work"
2. ... solve basic work problems
WARM-UP:
1. In the video, when Billy was holding the dictionary, was he doing work? Why or why not?
2. Draw a stick figure of a person holding a book, similar to the picture next to the projector screen
3. As I lift a book upward, draw a vector arrow from the book in the direction of the force I'm applying. Also, draw an arrow next to the book showing the direction of the displacement of the book. What is the angle between the two arrows? What is the cosine of that angle?
4. Find the sign of the work by using the equation W=Fdcos(ϑ)
5. As I lower the book downward, draw a vector arrow from the book in the direction of the force I'm applying. Also, draw an arrow next to the book showing the direction of the displacement of the book. What is the angle between the two arrows? What is the cosine of that angle?
6. Find the sign of the work by using the equation W=Fdcos(ϑ)
CLASSWORK:
1. Add Work to your Table of Friends
Symbol: W
Equation: W=Fdcos(ϑ)
Definition: the change in the amount of kinetic energy of a system
What does kinetic mean? --> movement
Vector or Scalar? Scalar
2. Stump the Chump
Watch the following: https://vimeo.com/158272704
Create 6 questions and answers based on the video
Make sure to choose questions from the beginning, middle, and end of the video
The victors get some extra points! :-)
3. Problem Solving:
HOMEWORK:
1. Now that we've introduced the concept of work, take a look at how your textbook explains the concept.
Reading quiz on pg 257-260. Prepare yourself.