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  2. Free field - Wikipedia

    en.wikipedia.org/wiki/Free_field

    In classical physics, a free field is a field whose equations of motion are given by linear partial differential equations. Such linear PDE's have a unique solution for a given initial condition. Such linear PDE's have a unique solution for a given initial condition.

  3. Thermodynamic free energy - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_free_energy

    Free energy is subject to irreversible loss in the course of such work. [1] Since first-law energy is always conserved, it is evident that free energy is an expendable, second-law kind of energy. Several free energy functions may be formulated based on system criteria. Free energy functions are Legendre transforms of the internal energy.

  4. National Standard Examination in Junior Science - Wikipedia

    en.wikipedia.org/wiki/National_Standard...

    The basic objective of conducting this test is not focusing on merit but to involve as many students from the country to participate in the exam and try to show and expose their talent. Hence the selection to the stage examinations i.e., International Junior Science Olympiad Examinations (IJSO) is based on the following scheme. [4]

  5. Indian National Physics Olympiad - Wikipedia

    en.wikipedia.org/wiki/Indian_National_Physics...

    The exam has 60 multiple-choice questions (48 single-correct and 12 multi-correct), with a 2-hour time limit. It's held on the last Sunday of November, and the top 400 students (200 each, group A & group B) advance to the Indian National Physics Olympiad (INPHO). The syllabus aligns broadly with up to CBSE Standard 12 Physics.

  6. Free response question - Wikipedia

    en.wikipedia.org/wiki/Free_response_question

    Free response tests are a relatively effective test of higher-level reasoning, as the format requires test-takers to provide more of their reasoning in the answer than multiple choice questions. [4] Students, however, report higher levels of anxiety when taking essay questions as compared to short-response or multiple choice exams. [5]

  7. Online quiz - Wikipedia

    en.wikipedia.org/wiki/Online_Quiz

    Online quizzes are generally free to play and for entertainment purposes only though some online quiz websites offer prizes. Websites feature online quizzes on many subjects. One popular type of online quiz is a personality quiz or relationship quiz which is similar to what can be found in many women's or teen magazines.

  8. Newton's laws of motion - Wikipedia

    en.wikipedia.org/wiki/Newton's_laws_of_motion

    Newton's laws are often stated in terms of point or particle masses, that is, bodies whose volume is negligible. This is a reasonable approximation for real bodies when the motion of internal parts can be neglected, and when the separation between bodies is much larger than the size of each.

  9. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    f is the ordinary frequency (measured in hertz) (sometimes symbolised with ν). angular momentum. Also (rarely) moment of momentum or rotational momentum. The rotational equivalent of linear momentum. It is an important quantity in physics because it is a conserved quantity–that is, the total angular momentum of a closed system remains constant.