Are velocity and average velocity vectors

Are velocity and average velocity vectors

Rate is scalar, no direction, only size
Velocity is a vector, which has both size and direction (the direction is the tangent direction of the trajectory curve at this time)
Speed: describes the movement of an object, the size of the speed describes the speed of the movement, and the direction of the speed describes the direction of the movement, so "the direction of the speed is the same as the direction of the movement" - vector
Speed: the magnitude of speed -- scalar
Average velocity: displacement per unit time (vector of the first and last positions of particle in this period) - vector
Average speed: distance per unit time (route) - scalar
Instantaneous velocity: the velocity of an object at a certain time (with direction) - vector