negative acceleration: braking your automobile. date: sept 19, 2011 hw:ptg pg. 88, #1-4, due fri do...
TRANSCRIPT
CHAPTER 1, SECTION 5Negative Acceleration: Braking Your Automobile
Date: Sept 19, 2011HW: PTG pg. 88, #1-4, Due Fri
Do Now (NB pg ?): WDYS WDYT
TB pg. 75 Read Investigate #1-4
TB pg. 76-77
Agenda: Do Now Objective & Success Criteria Investigate Physics Talk Quiz 1.5 PTG
Learning Objective: Understand how negative acceleration relates to braking and stopping distance
Success Criteria: Plan and carry out an
experiment to relate braking distance to initial speed
Determine braking distance Examine accelerated
motion
Investigate:
Complete #1-3 with your group Check procedures with Mr. Spencer Create data table Check with Mr. Spencer Complete #4
Sept 20, 2011HW:PTG pg. 88, #1-4, Due Fri
Finish procedures and data table Set up and collect data
Remember you are measuring the SPEED at the bottom of the ramp and BRAKING distance in METERS!
Analyze Data Average speed AND distance for EACH
height
September 21, 2011HW:PTG pg. 88, #1-4, Due Fri
Do Now: Find Averages Complete #5 a ,b on pg.
77 One group member draw
your graph on the board Complete #5c-e
Agenda: Do Now Investigate 5-8 Physics Talk
Checking up Quiz
Learning Objective: Understand how negative acceleration relates to braking and stopping distance
Success Criteria: Plan and carry out an
experiment to relate braking distance to initial speed
Determine braking distance Examine accelerated
motion
Investigate #5-8
As a class
Physics Talk
What is negative acceleration?
Draw an example of negative acceleration
Change in velocity with respect to time by decreasing speed in the positive direction or increasing speed in the negative direction
Physics Talk
How do you calculate braking distance?
Vi2=-2ad
vi2
-2a d
Checking up pg. 82, #1-3
September 23, 2011HW: None
Do Now: Get out 1.5 PTG #1-4 Discuss answers with
your group
Agenda: 1.5 PTG #1-4 1.5 Quiz Computer Set up (p4) Chapter Challenge Rubric Chapter Challenge Work
Day
Learning Objective: Understand how negative acceleration relates to braking and stopping distance
Success Criteria Calculate negative
acceleration and braking distance
Work on Chapter Challenge
1.5 Quiz