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: 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: Don sees wavelengths using a spectrometer. A wavelength that is very short likely has a _____ frequency compared to a longer one. 
 Answer: higher
Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.

Question: If Milo increases the concentration of hydrogen ions in his swimming pool, what happens to the acidity of his pool? 
 Answer: increases

With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.