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What is a scalar? A scalar is a quantity that is fully described by a magnitude only. It is described by just a single number. Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time. What is a vector? A vector is a quantity that has both a magnitude and a direction. Vector quantities are important in the study of motion. Some examples of vector quantities include force, velocity, acceleration, displacement, and momentum.


The trajectory of a particle (in red) along a curve inside a vector field. Starting from a, the particle traces the path C along the vector field F. The dot product (green line) of its displacement vector (red arrow) and the field vector (blue arrow) defines an area under a curve, which is equivalent to the path's line integral.


Displacement (vector) - Wikipedia, the free encyclopedia : Very Important - the distance travelled is not necessarily the same as the displacement vector!


Principle of superposition of waves showing constructive interference and destructive interference. Total displacement equals the vector sum of individual wave displacements.


Describing Projectiles With Numbers: Horizontal and Vertical Displacement: This page from The Physics Classsroom makes the projectile mathematics of how far or how high seem easy.


*Learning - Useful Tips. Lumo Studio ArchViz Creating Vector Displacement Tiago Sillos Padovani. This is a great tip collected from several sources on the web, check it out!