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: All [[object]]s in '''free fall''' will [[accelerate]] at the same rate, regardless of their [[mass]] or [[weight]]. However, [[object]]s do not always '''free fall''' due to [[Air Resistance|air resistance]]. For example a feather and a hammer have the same rate of '''free fall''' in a [[vacuum]] but in an [[atmosphere]] [[Air Resistance|air resistance]] has a greater effect on the feather so they appear to [[accelerate]] at different rates.
: [[Object]]s on [[Earth]] [[accelerate]] during '''free fall''' at a rate of 9.8m/s/s.
==Key Stage 5==
===Meaning===
The [[acceleration]] of free fall is the [[acceleration]] experienced by an [[object]] only under the influence of [[gravity]], typically 9.8 m/s² on Earth.
===About the Acceleration of Free Fall===
*Also known as gravitational [[acceleration]].
*It is constant for all [[object]]s near the [[Earth]]’s surface regardless of their [[mass]].
*Represented by the symbol 'g'.
===Examples===
*Objects in a [[vacuum]] chamber fall at the same rate regardless of their [[mass]].
*[[Free Fall|Free fall]] rides in amusement parks simulate this [[acceleration]].