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  2. GCSE Science - Wikipedia

    en.wikipedia.org/wiki/GCSE_Science

    Triple Award Science, commonly referred to as Triple Science, results in three separate GCSEs in Biology, Chemistry and Physics and provide the broadest coverage of the main three science subjects. The qualifications are offered by the five main awarding bodies in England; AQA , Edexcel , OCR , CIE and Eduqas .

  3. 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

  4. Lawson criterion - Wikipedia

    en.wikipedia.org/wiki/Lawson_criterion

    As for tokamaks, there is a special motivation for using the triple product. Empirically, the energy confinement time τ E is found to be nearly proportional to n 1/3 /P 2/3 [citation needed]. In an ignited plasma near the optimum temperature, the heating power P equals fusion power and therefore is proportional to n 2 T 2. The triple product ...

  5. Orders of magnitude (temperature) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    2.5 mK, Fermi melting point of helium-3; 60 mK adiabatic demagnetization of paramagnetic molecules; 300 mK in evaporative cooling of helium-3; 700 mK, helium-3/helium-4 mixtures begin phase separation; 950 mK, melting point of helium at 2.5 megapascals of pressure. All 118 elements are solid at or below this temperature.

  6. GCSE - Wikipedia

    en.wikipedia.org/wiki/GCSE

    In foundation-tier papers, pupils can obtain a maximum grade of a C, while in a higher-tier paper they can achieve a minimum grade of a D. Higher-tier candidates who miss the D grade by a small margin are awarded an E. Otherwise the grade below E in these papers is U. In untiered papers pupils can achieve any grade in the scheme.

  7. Triplet state - Wikipedia

    en.wikipedia.org/wiki/Triplet_state

    Examples of atoms in singlet, doublet, and triplet states.. In quantum mechanics, a triplet state, or spin triplet, is the quantum state of an object such as an electron, atom, or molecule, having a quantum spin S = 1.

  8. Double layer (plasma physics) - Wikipedia

    en.wikipedia.org/wiki/Double_layer_(plasma_physics)

    A double layer is a structure in a plasma consisting of two parallel layers of opposite electrical charge. The sheets of charge, which are not necessarily planar, produce localised excursions of electric potential, resulting in a relatively strong electric field between the layers and weaker but more extensive compensating fields outside, which restore the global potential. [1]

  9. n-ellipse - Wikipedia

    en.wikipedia.org/wiki/N-ellipse

    The 1-ellipse is the circle, and the 2-ellipse is the classic ellipse. Both are algebraic curves of degree 2. For any number n of foci, the n-ellipse is a closed, convex curve. [2]: (p. 90) The curve is smooth unless it goes through a focus. [5]: p.7