There appears to be no published knowledge regarding how humans use unit conversions. Until very recently, acquiring such data would be essentially impossible, but mobile devices have now enabled many questions to be answered through passive "crowdsourcing" of big data sets. This work details the analysis of five years of anonymous user…

The measurement of the force acting between two parallel, current-carrying wires is known as Ampère's experiment. A mechanical balance was historically employed to measure that force. We report a simple experiment based on an electronic precision balance that is useful in clearly showing students the existence of this interaction and how to…

Following a sociocultural perspective, this study investigates how students who have grown up using the SI (Systeme International d'Unites) (metric) or US customary (USC) systems of units for everyday use differ in their knowledge of scale and measurement. Student groups were similar in terms of socioeconomic status, curriculum, native language…

SI units of work, force, and energy are identified. (BB)

This ERIC Digest concerns the fundamental science process skills of measurement. One only has to glance around the home or workplace to realize that measurement is fundamental to everyday life. International tests and student scores on measurement, measurement and curriculum standards, student difficulties and misconceptions, the challenge to…

A summary of a survey on problems of conversion to SI units and its effect on the teaching of chemistry is presented. (Author/BB)

Metrication and the process of metric changeover in the United States are discussed; preferred terms and units of measure are specified. (DT)

An energy scale, constructed in terms of the Joule, is presented. It provides for the conversion of all traditional units employed in engineering, science, and technology to describe forms of energy; gives the energy associated with physical phenomena; and provides energy equivalents of quantities associated with various energy sources. (DT)

A table lists the following quantities in imperial units, old metric units, and SI units: mass, force, energy, torque, power, pressure, temperature, thermal conductivity, frequency, dynamic viscosity, and kinematic viscosity. (MLH)

This pamphlet gives definitions and symbols for the basic and derived metric units, prefixes, and conversion factors for units frequently used in water resources. Included are conversion factors for units of area, work, heat, power, pressure, viscosity, flow rate, and others. (BB)

The purpose of this pamphlet is to provide a starting point of information on the metric system for any concerned or interested reader. The material is organized into five brief chapters: Man and Measurement; Learning the Metric System; Progress Report: Education; Recommended Sources; and Metrication, American Style. Appendixes include an…

Describes additions and changes to the official SI (International System) of units, including two new prefixes, exa and peta, and two new units, becquerel as a unit for activity, and gray as a unit for joules per kilogram. (MLH)

Presents the views of a high school physics teacher toward The International System of Units (SI). (HM)

Presents the author's perspective for accepting an approximation to The International System of Units (SI). Some alternatives to the SI form are also presented. (HM)