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.

[Q]: Question: As an object slows down, it will become _____. 
 Answer: cooler
[A]: At a lower temperature, particles of the medium are moving more slowly, so it takes them longer to transfer the energy of the sound waves.


[Q]: Question: If you were to launch a cannon which ball would fly faster if everything else were the same? 
 Answer: Lighter
[A]: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.


[Q]: Question: Ray was traveling in rocket leaving orbit. He ejects the empty fuel containers so the ship can fly 
 Answer: higher
[A]:
By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.