# What is acceleration?

Acceleration is the increase in the rate or speed of something. It can also be described as the increase of motion or action. In physics, specifically kinematics, acceleration is the change in velocity over time.
Q&A Related to "What is acceleration?"
 Tanning accelerators are usually lotions or pills that increase the amount of melanin your skin naturally produces when it is exposed to ultraviolet (UV) rays. Most varieties of tanning http://www.ehow.com/about_5063293_tanning-accelera...
 Acceleration is the change in velocity with time, for linear (constant) acceleration it is calculated by: (End Speed -Start Speed)/time taken. http://wiki.answers.com/Q/What_is_the_acceleration
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 Synonyms of accelerate: forward, speed up, advance, stimulate, quicken, hurry. Antonyms of accelerate: decelerate, slow down, retard. http://wiki.answers.com/Q/What_is_the_antonym_of_s...