An engineer is given a time limit of one month to design a compact cell phone that works underwater. What constraint will the engineer be facing when designing this phone? Size b. Durability c. time for design d. resistance to water

When building a water filter, you must use only materials available. Criteria or Constraint.

Criteria, Constraint. Or Trade off: It takes a long time to reach our destination.

The catapult design must be less than 14 inches tall, launch at least 36 inches, not use more than four types of materials, and angle of arm less than 110 degrees.

Which step of the engineering process is this? Identify a need. Revise the design. Brainstorm solutions. Conduct background research.

Criteria, Contraint, or Tradeoff Does require a lot of work to keep it in working order.

Cost or Benefit: Made from recycled material.

In order to develop a container, a woman can carry long distances for water, it must be light and hold at 2 gallons. Criteria or Constraint.

Cost or Benefit: will not need to be replaced often.

Which prototype met the criteria of having 8 GB of storage and the constraint of price under $100?

Which cleaning process is the most effective choice?

When building a water filter, it must filter out animal waste, oil and salt. Criteria or Constraint.

The new hoverboard must meet all safety guidelines. It must be manufactured in $75 or less, the battery should last at least 2 hours, and the hoverboard should be able to travel at least 6 mph. Which should be we buy?