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: Eric rubs together tissue paper and then sandpaper. The rougher tissue paper has _____ friction than the sandpaper. 
 Answer: more
Rougher surfaces have more friction between them than smoother surfaces.

Question: If Mona is observing two objects and she realizes that one has a smaller mass then the other, what does that tell her about that object's thermal energy? 
 Answer: it's smaller
An object with more mass has greater thermal energy than an object with less mass because it has more atoms.

Question: When you are talking to someone in the desert the sound will travel 
 Answer: faster

For a given medium such as air, sound has a slower speed at lower temperatures.