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.
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Question: Question: Wendy decreases the frequency of her radio's sound waves. These waves now have _____ energy. 
 Answer: less

Answer: Higher frequency waves have greater energy.


Question: Question: If John increases the rate at which gas exits the bottom of his rocket, what will happen to the upward momentum of the rocket? It will 
 Answer: increase

Answer: The rocket goes upwards because the hot gases shoot downwards out of the nozzle. The faster the gases go downwards, the faster the rocket goes upwards.


Question: Question: Dean is trying to slide a rock down a hill using less input force. The slope of the hill that will be ideal for Dean is one that has a slope that is 
 Answer: gradual

Answer:
The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.