Accuracy vs Precision and Significant Figures Explained | Physics Explained 1.4

Every measurement ever made is a little bit wrong, and good science says exactly how wrong. This lesson covers accuracy vs precision (with bull's-eye targets), uncertainty and percent uncertainty, the method of adding percents, significant figures (what counts, which zeros matter, and how to use them in calculations), and how to build and read a graph: slope, intercept, the shapes of linear, quadratic, inverse and exponential relationships, and why logarithmic scales turn curves into lines. Plus a real micrometer reading a wire to 0.01 mm. Chapters: 0:00 Intro 0:46 Accuracy vs precision 2:16 Uncertainty 3:21 A real micrometer 4:16 Percent uncertainty 5:37 Significant figures 6:38 Which zeros count? 7:34 Sig figs in calculations 9:03 Graphs 11:10 The shape of a relationship 11:52 Logarithmic scales 12:50 Recap 13:39 Check yourself 14:54 Up next Physics Explained, Chapter 1: What is Physics? (lesson 4 of 4) Adapted from Physics by OpenStax (https://openstax.org/details/books/ph..., licensed under CC BY 4.0 (https://creativecommons.org/licenses/.... The animations and narration are original to Prime Mover. OpenStax is not affiliated with this channel and does not endorse it. Prime Mover: learn it, build it, share it.