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  2. Sine'skwela - Wikipedia

    en.wikipedia.org/wiki/Sine'skwela

    Sine'skwela is a curriculum-based show, in line with the science classes of public elementary students from Grade 2 to 6 in the Philippines. The Department of Education mandated that the show will be used as a reference for school classes and be screened at least once a week.

  3. Full-Option Science System - Wikipedia

    en.wikipedia.org/wiki/Full-Option_Science_System

    Twenty-six modules were developed for K–6, and nine courses for middle school. The FOSS K–6 program went through a major revision in 2000 and was then adopted in Texas. The program went through a minor revision in 2005. A new, California specific, edition was developed for the California science adoption (K–5) in 2007.

  4. Graviton - Wikipedia

    en.wikipedia.org/wiki/Graviton

    The graviton's Compton wavelength is at least 1.6 × 10 16 m, or about 1.6 light-years, corresponding to a graviton mass of no more than 7.7 × 10 −23 eV/c 2. [18] This relation between wavelength and mass-energy is calculated with the Planck–Einstein relation , the same formula that relates electromagnetic wavelength to photon energy .

  5. Gravitational energy - Wikipedia

    en.wikipedia.org/wiki/Gravitational_energy

    For two pairwise interacting point particles, the gravitational potential energy is the work that an outside agent must do in order to quasi-statically bring the masses together (which is therefore, exactly opposite the work done by the gravitational field on the masses): = = where is the displacement vector of the mass, is gravitational force acting on it and denotes scalar product.

  6. Gravimetry - Wikipedia

    en.wikipedia.org/wiki/Gravimetry

    Gravity is usually measured in units of acceleration.In the SI system of units, the standard unit of acceleration is metres per second squared (m/s 2).Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2.

  7. Gravitational constant - Wikipedia

    en.wikipedia.org/wiki/Gravitational_constant

    The gravitational constant G is a key quantity in Newton's law of universal gravitation.. The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

  8. Gravity - Wikipedia

    en.wikipedia.org/wiki/Gravity

    In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as a mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force, and 10 29 times weaker than the weak interaction.

  9. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    Before Newton's law of gravity, there were many theories explaining gravity. Philoshophers made observations about things falling down − and developed theories why they do – as early as Aristotle who thought that rocks fall to the ground because seeking the ground was an essential part of their nature. [6]