Writing vectors and scalars
Teaching Guidance for 14-16
How to show something is a vector
If some quantity is a vector, we'd suggest using an explicit notation to make that very clear. So we'd suggest →x instead of just writing the vector in a bold or italic face.
So acceleration is shown to be a vector by writing →a.
And velocity is shown to be a vector by writing →v.
In this way you'll help to keep separate scalars and vectors in students' minds.
You'll also be using something that they can mimic, and so help clarify their own thinking, when expressing ideas for themselves.
Vectors: acceleration, →a; velocity, →v; displacement, →d.
Scalars: speed; distance; mass.