Communicating Uncertainty in Measurement Limit of Precision What is the smallest increment on the measuring tool? _______________ LOP is _____________ Uncertainty How many significant figures can your measuring tool allow you? ___________________________ Uncertainty is _________________

By the way…

Each tool below has a different uncertainty of measurement Each tool below has a different uncertainty of measurement. State how many significant figures there are for each one, and state the limit of precision (LOP) for each one.

Determine the measurement in cm communicated by each ruler, and determine the uncertainty.

Making a proper Graph Every graph MUST HAVE: a ____________ (with the manipulated and responding variable) ______________ with the manipulated variable & ________________ ______________with the responding variable & ________________ data points plotted A _____________________________

Make a graph from the following Data Table

Slope & Y-intercept Slope = y2 – y1 WHAT IS THE SLOPE OF THE GRAPH x2 – x1 YOU CREATED? Show your work. 100.0 g – 30.0 g 20.0 cm3 – 6.0 cm3 *in a Mass vs. Volume graph, the slope is equal to the density Y-intercept = when the line crosses through the y-axis; when x = 0 *in the case of a Mass vs. Volume graph… can something that has 0 g of mass still have volume? http://www.purplemath.com/modules/slopyint.htm =