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 »

Inertia is the quality a mass, or any object, has that keeps it still, if it is not moving, or in motion, if it is in motion. The relationship between mass and inertia has much to do with the first two laws of physics by... More »

"Acceleration" is a term used to describe a change in speed or direction. The term "speed" is used to describe an object when direction is unimportant, while the term "velocity" is used to describe an object that is chan... 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 »