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  2. Work (electric field) - Wikipedia

    en.wikipedia.org/wiki/Work_(electric_field)

    The work per unit of charge is defined as the movement of negligible test charge between two points, and is expressed as the difference in electric potential at those points. The work can be done, for example, by generators , ( electrochemical cells ) or thermocouples generating an electromotive force .

  3. Beveridge curve - Wikipedia

    en.wikipedia.org/wiki/Beveridge_curve

    Beveridge curve of vacancy rate and unemployment rate data from the United States Bureau of Labor Statistics. A Beveridge curve, or UV curve, is a graphical representation of the relationship between unemployment and the job vacancy rate, the number of unfilled jobs expressed as a proportion of the labour force. It typically has vacancies on ...

  4. AP Physics 2 - Wikipedia

    en.wikipedia.org/wiki/AP_Physics_2

    In February 2014, the official course description and sample curriculum resources were posted to the College Board website, with two practice exams being posted the next month. As of September 2014, face to face workshops are dedicated solely to AP Physics 1 & AP Physics 2. The full course was first taught in 2014, with the exam given in 2015.

  5. Lists of physics equations - Wikipedia

    en.wikipedia.org/wiki/Lists_of_physics_equations

    In physics, there are equations in every field to relate physical quantities to each other and perform calculations. Entire handbooks of equations can only summarize most of the full subject, else are highly specialized within a certain field. Physics is derived of formulae only.

  6. Employment-to-population ratio - Wikipedia

    en.wikipedia.org/wiki/Employment-to-population_ratio

    Employment-to-population ratio, also called the employment rate, [1] is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64 [2] [3]) that is employed. This includes people that have stopped looking for work. [4] The International Labour Organization states that a ...

  7. Strain rate - Wikipedia

    en.wikipedia.org/wiki/Strain_rate

    The definition of strain rate was first introduced in 1867 by American metallurgist Jade LeCocq, who defined it as "the rate at which strain occurs. It is the time rate of change of strain." In physics the strain rate is generally defined as the derivative of the strain with respect to time. Its precise definition depends on how strain is measured.

  8. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    For a water electrolysis unit operating at a constant temperature of 25 °C without the input of any additional heat energy, electrical energy would have to be supplied at a rate equivalent of the enthalpy (heat) of reaction or 285.830 kJ (0.07940 kWh) per gram mol of water consumed. [6] It would operate at a cell voltage of 1.48 V.

  9. Economic activity rate - Wikipedia

    en.wikipedia.org/wiki/Economic_activity_rate

    Economic activity rate, EAR (or labor force participation rate, LFPR), is the percentage of the population, both employed and unemployed, [1] that constitutes the workforce, regardless of whether they are currently employed or job searching.