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  2. 2020 United Kingdom school exam grading controversy

    en.wikipedia.org/wiki/2020_United_Kingdom_school...

    [24] [25] As a result, there was an annual increase by more than 10 percentage points in the number of top grades awarded (from 25.2% to an estimated 37.7%), [26] the biggest increase for at least 20 years. [27] The initial algorithm 'upgraded' students, leading 100,000 to secure their firm university choices, which filled courses at top ...

  3. Collision theory - Wikipedia

    en.wikipedia.org/wiki/Collision_theory

    Collision theory is a principle of chemistry used to predict the rates of chemical reactions. ... whether the predicted T ⁠ 1 / 2 ...

  4. Tennessine - Wikipedia

    en.wikipedia.org/wiki/Tennessine

    For example, the 6d electron levels (also split in two, with four being 6d 3/2 and six being 6d 5/2) are both raised, so they are close in energy to the 7s ones, [107] although no 6d electron chemistry has ever been predicted for tennessine. The difference between the 7p 1/2 and 7p 3/2 levels is abnormally high; 9.8 eV. [107]

  5. Common Entrance Examination - Wikipedia

    en.wikipedia.org/wiki/Common_Entrance_Examination

    At 11+, Common Entrance consists of two English examinations, as well as an examination each in Mathematics and Science. [3]At 13+, Common Entrance consists of examinations in Mathematics (three papers: a (listening) mental mathematics paper, plus written non-calculator and calculator); English (two papers); and one paper each in Latin, Classical Greek, Geography, History, Religious Studies ...

  6. A-level (United Kingdom) - Wikipedia

    en.wikipedia.org/wiki/A-level_(United_Kingdom)

    The O grade was equivalent to a GCE Ordinary Level pass which indicated a performance equivalent to the lowest pass grade at Ordinary Level.. Over time, the validity of this system was questioned because, rather than reflecting a standard, norm referencing simply maintained a specific proportion of candidates at each grade, which in small cohorts was subject to statistical fluctuations in ...

  7. AQA - Wikipedia

    en.wikipedia.org/wiki/AQA

    AQA also offers the AQA Baccalaureate, a qualification also intended for students in Year 12 and 13 and which includes the study of three A-Levels, an extended project and extra-curricular enrichment activities. [2] AQA is the largest examination board for GCSEs and GCE A Levels in England. [3] AQA administration office, Guildford

  8. GCSE - Wikipedia

    en.wikipedia.org/wiki/GCSE

    The BTEC is another Level 1/2 qualification available in the same territories as the GCSE, and is graded at 5 levels. At Level 2, comparable to A*, A, B, and C respectively are the Distinction*, Distinction, Merit, and Pass. A BTEC at Level 1 is simply marked as "Level 1", with no subdivision. Below that level, a U is awarded, as in GCSEs.

  9. Charm quark - Wikipedia

    en.wikipedia.org/wiki/Charm_quark

    This second-generation particle is the third-most-massive quark, with a mass of 1.27 ± 0.02 GeV/c 2 as measured in 2022, and a charge of + ⁠ 2 / 3 ⁠ e. The existence of the charm quark was first predicted by James Bjorken and Sheldon Glashow in 1964, [ 1 ] [ 2 ] [ 3 ] and in 1970, Glashow, John Iliopoulos , and Luciano Maiani showed how ...