Why are impulse and momentum vectors and work and momentum scalars?

Why are impulse and momentum vectors and work and momentum scalars?

It is estimated that you are still a high school student. After studying advanced mathematics in college, you will understand that impulse is the integration of the vector of force and the scalar of time. If the force is constant, it is the multiplication of the two. Of course, the result is vector. If the variable force uses the same integration result, the definition of momentum is the product of velocity and mass