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 building a machine to help her vacuum her floor and she decreases the amount of force the engine inside the vacuum, what happens to the vacuum ability to make work easier? 
 Answer: decreases
Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.

Question: If Milo increases the frequency on his shortwave radio, it does what to the amount of energy the radio is producing? 
 Answer: increases
Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.

Question: As a boy grows to a man and his larynx grows smaller, his voice gets 
 Answer: higher.

The voice becomes deeper as the larynx in the throat grows larger.