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*It can be positive (speeding up) or negative (slowing down), also called deceleration.
*[[Measure]]d metres per [[second]] squared (m/s²).
*Can [[Acceleration]] be caused by changes in [[speed]] or direction.*[[Newton]]'s Second Law states that [[acceleration]] is produced when a force acts on a [[mass]] (F = ma).*[[Acceleration]] can be uniform or non-uniform.*The direction of the [[acceleration]] vector determines the direction of the change in velocity.*[[Centripetal acceleration]] occurs when an [[object]] moves in a circular path and is directed towards the center of the circle.*[[Gravitational acceleration]] near the [[Earth]]’s surface is approximately 9.8 m/s².
===Examples===
*A car [[Accelerate|accelerating]] from a stoplight.
*The [[acceleration]] due to [[gravity]] is 9.8 m/s² downwards.