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.

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

[EX Q]: Question: Dean held two magnets a few inches apart, and felt them pull at each other. He didn't feel a pull from the magnets when they were 
 Answer: further
[EX A]: The smaller the distance between the objects, the greater the force of magnetic attraction.

[EX Q]: Question: If Jim is transmitting electricity through a wire and he reduces the size of that wire, the electrons move through it 
 Answer: harder
[EX A]:
A thinner wire is more difficult for electrons to move through than a thicker wire.