Criteria and Constraints
Identify 1 criteria and 1 constraint:
An engineer is looking to create a new factory line. It must be able to keep running even if a building loses power and it can't take longer than 10 months to build.
Must be able to keep running even if a building loses power, can't take longer than 10 months to build
What problem needs to be solved?:
A school is trying to limit the amount of energy they are using on lights due to an increase in their monthly bills.
Reducing the amount of light use OR lowering the cost of lights
Which of these is an example of a way that a school can reduce the amount of water the school uses? Circle the letter of the correct answer.
A. Install automatic faucets in the restrooms.
B. Recycle aluminum cans and plastic bottles in the cafeteria.
C. Turn off computers in the computer lab when they’re not in use.
D. Collect waste food and make a compost pile for a school garden.
A. Install automatic faucets in the restrooms.
Criteria
What a solution HAS to have/has to solve
Identify 2 criteria and 2 constraints:
A scientist is working in a lab with mice, they are trying to track how disease spreads. The scientist can only work with mice for 3 hours at a time and has to wear PPE to protect themselves. They have to have a staff of 5 people in the lab. The mice need to be given medicine every 30 minutes.
There has to be 5 people in the lab, the mice need medicine every 30 minutes. They can only work with the mice for 3 hours at a time and have to wear PPE
What problem needs to be solved?:
A city is looking to reconstruct a bridge after an old wooden bridge fell apart, they would like this bridge to be reliable.
Building a more reliable bridge
Which activity would be part of a logical plan to reduce each person’s resource use at home?
A. The city installs a recycling center.
B. People turn off all lights that are not in use.
C. People drive below the speed limit to save gas.
D. People burn trash instead of putting it out for pickup.
B. People turn off all lights that are not in use.
Engineering Design Process (EDP)
Steps that need to be followed to solve an engineering problem
Identify 1 criteria and 3 constraints:
A city is planning an offshore windmill farm. It has to be located at least 10 miles from the shoreline and can't interfere with any endangered bird species. The windmill farm has to be completely done in 5 years and come out to cost less than $3 million.
Has to be at least 10 miles from the shore, can't interfere with any endangered species, has to be completely done in 5 years, has to cost less than $3 million.
What problem needs to be solved?:
A company is looking to find a new supplier based in the United States due to delays in getting products internationally.
Find a new supplier OR solve product delays
What is one challenge that comes with using new technologies to reduce greenhouse gas emissions?
A. New technologies are not yet available.
B. New technologies only work in certain areas.
C. New technologies can consume more fossil fuels.
D. New technologies can be more expensive than existing technology
D. New technologies can be more expensive than existing technology
Positive consequence
Identify 4 criteria and 1 constraints:
A scientist is working to develop a healthy brand of potato chips. The chips must have less sodium than normal chips but can't cost over 50 cents a bag more to produce. The chips also must be gluten free and vegan, produced in the United States.
Less sodium, gluten free, vegan, produced in the United States, cost
What problem needs to be solved?:
An engineer is looking to build a robot that can sweep factory floors due to a reduced workforce, the robot has to be rechargable.
Cleaning due to reduced workforce OR build a robot
A city is considering several competing systems designed to monitor resource use in the city. Which of the following is important to consider?
A. The competing systems must use new technologies.
B. The competing systems must have different constraints.
C. The competing systems must monitor different resources.
D. The competing systems must have the same design criteria.
D. The competing systems must have the same design criteria.
Aquifer
Rocks that hold groundwater