Answer:

1) Speed - Scalar quantity which describes how fast an object is moving. It is the magnitude of the velocity vector and is measured in distance per unit time (e.g. meters per second or miles per hour).

2) Acceleration - Vector quantity which describes the rate of change of an object's velocity. It is the change in velocity over time and is measured in distance per time squared (e.g. meters per second squared or feet per second squared). It has both magnitude and direction, making it a vector quantity.