In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[Q]: Question: Terry's system wastes 50% of its energy, while Rick's system wastes 75%. The less efficient system is 
 Answer: Rick's
[A]: The greater the wasted output energy, the less efficient the system.


[Q]: Question: Will one large piece have more or less surface area than smaller pieces? 
 Answer: less
[A]: It would be hard to get a big chunk of chocolate to dissolve in your milk or hot water. Maybe you could make hot chocolate from some smaller pieces like chocolate chips, but it is much easier to add a powder to your milk. This is because the smaller the pieces are, the more surface area they have.


[Q]: Question: As molecules start moving faster they get 
 Answer: warmer
[A]:
Warmer molecules vibrate faster than cooler ones.