Unit 1, Lesson 2 - What is the Design Process?

How are prototypes used in the engineering design process?

• Prototypes are lists of needs to be addressed.

• Prototypes are models that can be tested for efficiency.

• Prototypes are the final products sold to consumers.

• Prototypes are tables of data that can be sorted and analyzed.

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Tomas notices that his tomato plants wither when they are in high temperature and direct sunlight during the summer. He decides to use the engineering design process to make a sunshade for his tomato plants. How can Tomas test his solution?

• record the average daily temperature in the area

• conduct research about tomato plants and weather

• compare plants without a sunshade with plants with a sunshade

• measure the amount of water required by tomato plants without sunshades

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Which procedure could be used to predict design flaws in a fabric used to make sails for ships?

• analyzing the deck of the ship for strength

• testing to see how much weight the ship can carry

• marketing the sails and recording customer complaints

• stressing the fabric with wind and weather over a period of time

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Maria tested a prototype to organize things on her shelves and keep them from falling. When she tested her prototype, she found there was not enough room on her shelves for all the items she wanted to place there. What is the best approach for Maria when she redesigns the prototype?

• add new criteria

• use the same criteria

• change all the criteria

• get rid of the old criteria

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Engineers test four dishwashers, models A through D. The engineers discover that dishwasher model B does not clean the dishes well. Which is the next step for the engineers?

• Make and sell the model B dishwasher anyway.

• Start all over with a brand new design for a dishwasher.

• Evaluate what is wrong with model B and work to redesign it.

• Choose a different appliance to make and sell instead of dishwashers.

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A group of students are designing a new type of bumper car for a science fair project. The students know that bumper cars can quickly become damaged.

1. Name a problem the students must solve when they design the bumper car.

2. Describe a possible solution to the problem.

Choose 2 Answers

• The design should solve the problem of the car being damaged when it bumps against other cars

• The design should solve the problem of the car being faster than other cars.

• A possible solution is to surround the car with rubber to absorb the force of bumping.

• A possible solution give the car a bigger engine.

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Mr. Ruiz’s class built a ramp and measured how fast a car traveled down the ramp.

Explain how to improve the design so a car will travel faster down the ramp.

Explain how to improve the design so more than one car can go down the ramp at the same time.

• They could make the ramp shorter or build it out of a different material, like plastic, which might help the car travel slower.

• The design should solve the problem of the car being faster then other cars

• They could build a smaller ramp so one car could travel down it at the same time.

• They could build a wider ramp so more than one car could travel down it at the same time.

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