SCALAR AND VECTOR QUANTITIES (Lesson 3.1)

Scalar Quantity

Scalar Quantity

Are quantities that have only magnitude (size). Example: Speed , time, mass

Vector Quantity

Has both magnitude (size) and direction.
Example: Velocity, acceleration, force

Arrow Head

Indicates the direction of the vector

Tail

represent the origin of the vector.

Length

represent the magnitude of the vector

Parallelogram Method

Is useful in adding two vectors, known as the tail-to-tail method.

Polygon Method

Is used to add more than two vectors, known as head-to-tail-method.