Identify the quantity as either vector or scalar. quantity: the acceleration of the space shuttle as it takes off type of quantity:

The acceleration of the space shuttle as it takes off is a vector quantity.

In fact, acceleration is a quantity that has both a magnitude (its value) and a direction, and vector quantities have both of them. On the contrary, scalar quantities have only a magnitude, but not a direction (an example of scalar quantity is the mass of an object, which has no direction).