Acceleration shows the changes in the magnitude and direction of velocity. It is a vector with a standard unit of meters per second squared. More »

Speed is rate of change in position, measured in distance over time, while acceleration is the change of speed in a particular direction over time. A car can move at a constant speed around a curve, but it is still accel... More »

Acceleration is any change in the speed or the direction of movement. It does not matter, from a scientific point of view, if only the direction changes but not the speed, as with a planet in a circular orbit, or if the ... More »

When the acceleration of an object is zero and the velocity is positive, the object continues to move at a steady velocity in the same direction. The object cannot be changing direction because direction change results i... More »

In physics, the three types of acceleration are changes in speed, direction and both simultaneously. The word "velocity" is often used in place of speed. A person can calculate the acceleration of an object by determinin... More »

The general formula for finding speed is x = d / t, where "x" denotes the speed, "d" indicates the distance traveled and "t" represents the time it takes to cover "d." Speed is a scalar quantity that is entirely defined ... More » Science Physics Motion & Mechanics

Acceleration is a vector quantity, which means that it has both a direction and a magnitude. Acceleration is the rate at which the velocity of an object changes. Velocity is also a vector and also has a direction. More »