Monthly Archives: August 2012

Motion in a straight line with constant acceleration

Here’s the theory and an easy question. It’s best to write down v,u,a,s and t in a vertical column then fill in the quantities you know and question marks next to the ones you don’t. It’s a simple matter then … Continue reading

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S I Units: Derived units

As the name suggests, combining base units is used to form new and useful derivations. density (derived) = mass(base) /volume (derived) Then, this -is a special case of Newton’s second Law of Motion which says that a constant unbalanced force … Continue reading

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S I Units: Base Units and Quantities

Quantity Name Symbol Length metre m Mass kilogram kg Time second s Electric Current ampere A Thermodynamic Temperature kelvin K Amount of Substance mole mol Luminous Intensity candela cd S I is abbreviated from Système international d’unités, is the modern … Continue reading

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