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 sound waves get shorter their frequency 
 Answer: increase

A: As wavelength increases, frequency decreases.
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Q: Question: Dean turns the current down a lot, expecting that the resistance will 
 Answer: grow

A: When we add resistors in parallel to each other the total resistance decreases and the current increases.
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Q: Question: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be warmer in the end is the one that moves 
 Answer: faster

A:
Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.
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