Question

19
directions: select each correct answer. more than one answer may be correct.
mike is designing a new brand of earphones. he needs to make the ear phones small enough to fit inside a person’s ears. but if the earphones are too small, the speakers inside of them will not be able to generate a high - quality sound. mike also knows that the earphones will be used by people as they exercise. so he needs them to be able to withstand sweat as well as hot and cold weather.

which of the following is a constraint on mike’s design?
□ how durable the materials he uses are
□ the desired sound quality
□ the size of an average person’s ear

Explanation:

• Durability of materials: Needed to withstand sweat and temperature changes during exercise.
• Desired sound quality: Constrained by earphone size (too small reduces sound quality).
• Average ear size: Determines minimum/maximum size for fit (can't be too big or too small). All three are constraints Mike must address in his design.

Answer:

how durable the materials he uses are, the desired sound quality, the size of an average person's ear