PPT-Errors and Uncertainties

I n M easurements and in Calculations Types of Experimental Errors Random Errors A result of variations in the performance of the instrument andor the operator Do NOT consistently occur throughout a lab. Phys. Accuracy and Precision. The . accuracy. of a measurement tells you how close the measurement is to the “true” or accepted value. . The . precision. of a measurement tells you something about the . Problem Solving class 1 for Physics 1A and Higher Physics 1A. What are problem solving classes?. These form a bridge between lecture material, labs and the exam.. In some problem solving classes you will be introduced to material covered in the lab part of the course.. Rrs. ) and output ocean color data:. a brief review. Stéphane. . Maritorena. – ERI/UCSB. Uncertainties in output products. Ideally, the uncertainties associated with ocean color products should be determined through comparisons with in situ measurements (matchups). Aims. To be able to calculate the percentage uncertainty of a measurement. To be able to combine these uncertainties to evaluate the overall uncertainty in a derived result. A Speed camera takes two images of a moving car and works out speed by calculating distance/time. How do you think this image would help somebody appeal their fine in court?. A Practical Guide. What you should already know well. What you need to know, . and use. , in this lab. More details available in handout ‘Introduction to Experimental Error’ (2. nd. Year Web page).. The Realm of physics. Measurement and uncertainties. Extra Book. Physics: for use with the IB Diploma Program. By Michael J Dickinson. ISBN: 9781475130010. Hertz Hz frequency s. -1. . Coulomb C Electric charge As . Lack of knowledge vs. variability.. What type of measures do we take to reduce uncertainty?. Design, manufacturing, operations & post-mortems. Living with uncertainties vs. changing them. How do we represent random variables?. Oswaldo. Carrillo. Ruth Yanai. The State University of New York. Visit our website: . www.quantifyinguncertainty.org. Download papers and presentations. Share sample code. Stay updated with QUEST News. What are problem solving classes?. These form a bridge between lecture material, labs and the exam.. In some problem solving classes you will be introduced to material covered in the lab part of the course.. www.chemactive.com. IB Chemistry HL. 2009/2010. 11.1 Uncertainty and error in measurement. 11.2 Uncertainties in calculated results. 11.3 Graphical techniques. www.chemactive.com. Measurement and data processing. 1.2 – Uncertainties and errors. Essential idea:. . Scientists aim towards designing experiments that can give a “true value” from their measurements, but due to the limited precision in measuring devices, they often quote their results with some form of uncertainty.. Uncertainties and Errors. Resolution. . This is the smallest change in a quantity that can be measured by an instrument.. E.g.. What is the resolution of. a. A 30cm ruler. b. An analogue wristwatch. Accuracies, Errors, and Uncertainties of Global Cropland Products Kamini Yadav, PhD Student Advisor: Dr. Russell Congalton Natural resource & the environment University of New Hampshire Introduction Guus . Velders. The Netherlands. (. RIVM. ). Guus. . Velders. 2. Focus on Ozone-Depleting Substances. Projections of gases controlled by the Montreal Protocol. CFCs, halons, HCFCs, carbon tetrachloride, methyl chloroform, CH.