DAY 18
I'm out today - please follow the time schedule as listed here.
8:30AM Warm-Up: This is quick, about 60-90 seconds per question (6-7 minutes total + 2 minutes for the video at the end)
Directions: make a prediction to answer each of the following questions. Don’t worry about what the correct answer might be. Just write what makes sense to you!
Which, if any, of these three pictures shows an object in projectile motion? Explain why you chose the one(s) you did.
Explain if you agree or disagree with the following idea: "When an object is falling down, the acceleration of the object is positive, causing it to speed up."
A slingshot fires a smooth stone straight up in the air. What causes the stone to move upward still after it has left the slingshot?
Suppose for a moment that we could switch gravity on and off. Imagine you fired a cannonball horizontally from a very high cliff at a very high speed in the absence of gravity. What would the motion of such a cannonball be like? How could its motion be described?
The cannonball shown in the picture below was fired from the ground at an angle of 40 degrees. Where would the cannonball land if you increased the angle of the fire. How about if you decreased the angle?
6. Review your answers with me by watching this 2 minute video: LINK
8:40AM CLASSWORK:
0. Today, you'll take some notes, answer some questions, do a mini-lab activity, and address some potential misconceptions
1. 8:40AM #018A Notes & Pre-Activity Questions (15 minutes)
Link is HERE
Upload your notes and answers to the Google Classroom before next class.
2. 8:55AM #018B Complete the Reaction Time Activity
Your group will need a ruler from the front whiteboard.
Data collection should only take 10 minutes, finishing at 9:05AM (don't forget to put the rulers away)
Data analysis should take 20 minutes, finishing at 9:25AM. Upload to the Google Classroom
Link is HERE - your sub will have a hardcopy to hand out to you
3. 9:30AM #018C Complete the True/False Preconceptions on page 2 HERE (you should have a hardcopy of this - ask your substitute)
4. Done early? Do the HW :-)
HOMEWORK:
1. Complete the Inertia questions on page 1 of your handout HERE (hint: the links at the top of the document work if you click them)
09/27/16
Goals:
SWBAT...
1. Define acceleration
2. Relate velocity and acceleration to how an object moves
3. Create velocity-time graphs
Warm-Up
For each of the following P-t diagrams, copy the image into your warm-up. Then...
1. label each diagram as either: positive acceleration, negative acceleration, or constant acceleration. Assume movement towards the right is positive.
2. Directly underneath each diagram. add a position (dot) diagram, and a motion (vector arrows) diagram. An example of these is to the left of the projector screen.
3. How can you tell from a P-t diagram that an objects velocity is changing?
CLASSWORK
1. Is This Acceleration?
For each video, list the video title, then answer the question and explain Why or Why Not?
a. How fast is that? July 4th cannon
d. Metal cylinder sliding across a table
e. Einstein riding the Graviton
2. Practice pg 61 4-5
Homework
pg 80: 54-55
Take notes (copy the problem/solution) and...
Answer the 3 questions for the Flipping Physics video
https://edpuzzle.com/media/5782bbb527ed9aaf13385c8a
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Notes
Follow up on Video and HW problem
Introduce concept of acceleration
Direct Measurement Videos
Sample Problem
Prepare for Walking Thru Graphs
HW?
WARM-UP
1. If a bike is traveling at 8m/s for 7s, what will it's displacement be (AKA, how far will it travel?)
2. What does the green line represent in the graph below?
3. Count the number of squares below the green line. What do you notice? Any connections with problem #1? Why?
NEED HELP?
Check it --> https://www.khanacademy.org/science/physics/one-dimensional-motion
GOALS: SWBAT...
- displacement is equal to the area under the curve of a v-t graph
- demonstrate a v-t graph through live motion
- interpret velocity and acceleration via a d-t and v-t graphs
CLASSWORK
1. Any homework questions?
2. Walking Through Graphs
For each graph, copy the graph on your paper, then describe the motion:
- direction of motion (+) or (-)?
- constant v, or is there +a, or -a? (AKA, is a (+), (-), or (o)?) Graphs are pictured here.
3. Today or Monday, each team will randomly be given a graph and asked to depict its motion by walking. The rest of the class will evaluate their effectiveness.
4. Position and Acceleration Quiz
5. HW due Friday :-)
- Read pg. 66-67 for Monday
- pg 67. #24 & 25
- Read pg 68-69 for Wednesday
- pg 69. # 27 28, 29