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→About Forces
===About Forces===
: A [[force]] can be [[measure]]d using a [[Newton Meter]].
: The [[SI Unit]] of [[force]] is the [[Newton]] (N).
: A [[force]] can be is a [[measurevector]]d using a quantity because it has both [[Newton Metermagnitude]]and direction.
: [[Force]]s follow [[Newton's Third Law]] which states that if an [[object]] 'A' exerts a [[force]] on [[object]] 'B'; then [[object]] 'B' will exert a [[force]] on [[object]] 'A' which is equal in [[magnitude]] but opposite in direction to the original [[force]]. These are sometimes called an [[Action Force|action force]] and a [[Reaction Force|reaction force]]. This means:
:: When you push a wall with a [[force]] of 5N ([[Action Force]]), the wall pushes back with a [[force]] of 5N ([[Reaction Force]]).