1. Physics 1 – Aug 30, 2016 P3 Challenge – Do Now (on slips of paper)
The dimensions of a room are given. Find the area of the room including the uncertainty in the area.
L = 15.5 m ± 0.3 m
W = 12.3 m ± 0.5 m
Get out Graph Practice and Warmup for lab for HMK check

2. Objectives and Agenda IB 1.2 Uncertainties and Errors
Determine the error present in graphs
Agenda for IB 1.2 Uncertainties and errors
Lab to investigate Error in Graphs
Assignment: Complete the Graphing Lab Error analysis.

3. Graphing Lab Overview
Collect Mass and Volume Data for water for volumes of approx. 5, 15, 25, 35, 45 mL.
Record the actual volume used as accurately as possible.
Record the mass to 3 decimal places using a triple beam balance.
Share your data with the class on the board and copy all class data.
Find ave and std dev of all volume and mass data. (Divide and conquer.)
Plot points (mass vs volume) with error bars for each point reflecting std devs
Determine min/max lines to asses uncertainty in slope and intercept.
Determine best fit line with uncertainties for the density of water.
Compare results to accepted 1.00 g/mL with a % error.

4. Exit Slip - Assignment
Why do you draw a minimum slope line and a maximum slope line on a graph?
What’s Due on Tues Sept 5? (Pending assignments to complete.)
Graphing Lab Activity
What’s Next? (How to prepare for the next day)
Read IB 2.1 (1 D) p35-43