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: Carla is pushing two carts down a street. One cart is heavy, the other is light. The heavy cart, compared to the light one, will accelerate
Answer: slowly
The greater the mass of an object, the less it will accelerate when a given force is applied.

Question: If Mona is studying the galaxy and she notices that the universe is expanding less then it used to, what does that mean is happening to the galaxies in the universe?
Answer: moving closer together
As the Universe expands, galaxies move further and further apart.

Question: A sound wave that has more frequency will have _____ energy.
Answer: more
A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.