A quantity in physics, such as force, that has both magnitude and direction.
A quantity in physics, such as mass, volume, and time, that can be completely specified by its magnitude, and has no direction.
An arrow whose length represents the magnitude of a quantity and whose direction represents the direction of the quantity.
The vector sum of two or more component vectors.
One of the vectors, often mutually perpendicular, whose sum is resultant vector. Any resulant vector may be regarded as the combination of wo or more components.
The process of resolving a vector into components. In optics, a measure of how well closely adjacent optical images are disinguished.
Any object that moves through the air or through space, acted on only by gravity (and air gravity resistance, if any).
An object that falls around earth or some other body rather than falling into it.