Final answer:
A shift in the demand or supply curve refers to a change in the entire curve, while a movement along the curve happens when there is a change in price resulting in a change in quantity demanded or supplied.
Step-by-step explanation:
Shifts of Demand or Supply versus Movements along a Demand or Supply Curve
A shift in the demand or supply curve refers to a change in the entire curve, caused by factors such as changes in consumer preferences, population, income, or technology. This indicates a change in the quantity demanded or supplied at all price levels.
On the other hand, a movement along the demand or supply curve occurs when there is a change in price, resulting in a change in quantity demanded or supplied. Movements along the curve do not shift the entire curve but represent different points on the same curve.