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: A smaller box can hold how much air compared to a large box? 
 Answer: Less air

A: In the larger container we will still have the same number of gas particles, but now they are filling a much larger space.
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Q: Question: Lisa is hitting a tennis ball against the wall. As the tennis ball bounces away from the wall and towards her, the magnetic force of attraction between the wall and the ball 
 Answer: decreases.

A:
As the distance between the objects increases the magnetic force of attraction decreases.
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