Scalars, vectors, and one dimensional motion  Scalars, Vectors and Motion
Scalars, vectors, and one dimensional motion
Lessons
Notes:
In this lesson, we will learn:
 Definition of scalar and vector
 How to write scalars and vectors in physics
 The definitions of distance, displacement, speed, and velocity
 Calculations involving scalars and vectors
Notes:
Scaler: a quantity with a magnitude only
Vector:a quantity with magnitude and direction
 Symbols for vectors can be written with arrows on top (like $\vec{d}$), symbols for scalars do not have arrows (like t)
 Distance, speed, time, and mass are examples of scalars: they do not have a direction.
 Position, displacement, and velocity are examples of vectors: they do have direction.
Displacement
$\Delta \vec{d}$: $\vec{d}_f  \vec{d}_i$
$\Delta \vec{d}: \mathrm{displacement, \;in\;meters\;(m)}$
$\vec{d}_f: \mathrm{final\;position, \;in\;meters\;(m)}$
$\vec{d}_i: \mathrm{initial\;position,\;in\;meters\;(m)}$
Speed
$v = d/t$
$v:\mathrm{speed, \;in \;meters \;per \;second \;(m/s)}$
$d:\mathrm{distance, \;in \;meters \;(m)}$
$t:\mathrm{time \;interval, \;in \;seconds \;(s)}$
Velocity
$\vec{v} = \Delta \vec{d}/t$
$\vec{v}: \mathrm{velocity,\;in\;meters\;per\;second\;(m/s)}$

Intro Lesson
Introduction to scalars, vectors, and one dimensional motion