Rudae's School of Beauty Culture, Fort Wayne Indiana (IN) Rudaeâs School of Beauty Cultureâs mission is to provide each student with the education needed (both written and practical) to successfully obtai...
Distance is a scalar quantity that refers to how much ground an object has covered during its motion. Displacement is a vector quantity that refers to how... Distance is a scalar quantity that refers to how much ground an object has covered during its motion. Displacement is a vector quantity that refers to how far out of place an object is; it is the objects overall change in position. This is not the final definition.
In the diagram above (not to scale) , S represents the Sun, and E the Earth at one point in its orbit. Thus the distance ES is one astronomical unit (AU). The angle SDE is one arcsecond (1â3600 of a degree) so by definition D is a point in space at a distance of one parsec from the Sun.