instruction:
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.
question:
Question: If Jimbo is surfing and the waves begin to crest higher, what happens to amplitude of those waves? 
 Answer: increases
answer:
The higher the crests of a wave are, the greater the amplitude.


question:
Question: A piece of glass has _____ friction than a piece of sandpaper. 
 Answer: less
answer:
Rougher surfaces have more friction between them than smoother surfaces.


question:
Question: Quent reduces the energy of a liquid. He notices that the particles in the liquid 
 Answer: slow down
answer:

As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.