Scalar quantities are defined solely by their magnitude and unit. Magnitude is always positive and can be expressed using English letters. Examples include mass, time, length, temperature, and speed. Scalar quantities can be manipulated using simple mathematical operations
Scalar quantities can be described by a single number and unit. Examples include time, mass, distance, length, volume, temperature, and energy. Scalar quantities can be added, subtracted, multiplied, or divided
Scalar quantities have only magnitude, like mass and electric charge. Vector quantities have both magnitude and direction, like force and weight. Unit vectors have magnitude 1 and are represented by "û"
Scalar quantities have only magnitude, no direction. Examples include distance, speed, mass, temperature, and energy. Scalar quantities can be measured using standard mathematical operations
World is governed by time and three-dimensional space. Quantities can be vector (directional) or scalar (non-directional). William Rowan Hamilton invented vectors, developed by Gibbs and Heaviside