Final answer:
The term for substituting the entire team at once in hockey is a 'line change,' and while less common in basketball, the concept may still be informally referred to as a 'line change' or 'hockey substitution.'
Step-by-step explanation:
The term used for substituting the entire team at once in sports like hockey is known as a line change. This strategy allows teams to maintain a high level of energy and intensity by substituting a group of players (a line) with another group from the bench.
In basketball, while the term 'line change' is less common, a similar mass substitution is sometimes informally referred to as a 'line change' or 'hockey substitution' due to its strategic similarity to what is commonly practiced in hockey.
In basketball, a line change can also occur when a coach decides to substitute all five players on the court with a fresh set of players.