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→Key Stage 5
==Key Stage 5==
===Meaning===
The [[acceleration]] of [[Free Fall|free fall]] is the [[acceleration]] experienced by an [[object]] only under the influence of [[gravity]], typically 9.8 m8m/s² on Earth.
===About Free Fall===
*It is constant for all [[object]]s near the [[Earth]]’s surface regardless of their [[mass]].
*Represented by the symbol 'g'.
*In the absence of [[drag]], all [[object]]s fall with the same [[acceleration]] due to [[gravity]].
*The value of g decreases with altitude and is slightly different at the poles and the equator due to the [[Earth]]’s shape.
*[[Galileo]]'s experiments demonstrated that [[object]]s fall at the same rate irrespective of their [[mass]].
*[[Free Fall|Free fall]] [[acceleration]] is used in various physics equations such as s = ut + 0.5gt² for distance and v = u + gt for final velocity.
===Examples===