A physical quantity is something that can be measured. Scalar quantities only have size (or magnitude). Vector quantities have size and direction. Speed is a scalar quantity - direction is not ...

Notice how the quantities above have both a size and a direction associated with them. The direction of a vector can be given in a written description, or drawn as an arrow. The length of an arrow ...

Unit 1 Segment D: Vectors and Scalars A marching band helps us explore the difference between vector and scalar quantities. We also dive into how to use the tip-to-tail method to resolve one and ...