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: 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.


Question: Question: A wave with a high frequency has _____ energy than a wave with a low frequency. 
 Answer: more

Answer: Higher frequency waves have greater energy.


Question: Question: Marcus is climbing a mountain, and notices that it is easier to breathe than it was before. This is likely because Marcus is at a 
 Answer: lower elevation

Answer:
Air pressure is less at higher elevations.