Physicists use some basic terms when they look at motion. How fast an object moves, its speed or Velocity, can be influenced by forces. (Note: Even though the terms 'speed' and 'velocity' are often used at the same time, they actually have different meanings.) Acceleration is a twist on the idea of velocity.
Expungement is the legal process by which a court removes or erases all records of a criminal conviction, even if it is a felony conviction. Your conviction will not simply disappear on its own even if you wait 10 or 20 years - you have to take action (see how long does a felony stay on your record).
Expungement Costs. A criminal attorney in your area can help you walk through the requirements specific to your state and jurisdiction. Attorney's fees to expunge a felony are usually between $1,000 and $2,500, and is inclusive of all costs associated with your expunction including court appearances. They can also advise you as to alternatives to expunction. For example, if your felony conviction does not qualify to be expunged, you may still be able to obtain some relief by requesting a petition for non-disclosure.