PLTW Gateway DM End-of-Unit

Which of the following behaviors can negatively impact team success?

• Group members focus on the ideas of those with the best grades in the class
• Group members listen to each other and everyone’s ideas are heard
• Group members feel free to disagree, but all feedback given is helpful
• Group members understand their tasks and help each other achieve the goals

Which of the following best describes why sketching is an effective communication tool?

• Designers can color parts of a sketch to show texture and communicate an object’s appearance
• Sketching allows designers to accurately communicate details of their ideas with lots of information at once
• Using sketches to communicate ideas makes the design neat and pleasing to the eye
• Sketching tells a story about the design, such as how it might be used or where it will be made

^{Use the image to answer the question.}

_{What is the length of the four blocks to the line?}

• 2-13/8 in.
• 2.13 in.
• 2-13/16 in.
• 2-11/16 in.

^{Use the image below to answer the question.}
What is the surface area of this box?
2wl + 2lh + 2hw

• 768 cm²
• 244 cm²
• 576 cm²
• 488 cm²

_{^{What is 11.17 miles when represented in meters?}}

• 17,987 meters
• 6,937 meters
• 18 meters
• 6.9 meters

What is the dial caliper measurement for these four blocks to the nearest thousandth of an inch?

• 2.200 in.
• 2.194 in.
• 2.940 in.
• 2.294 in.

^{_{What is the length of the three blocks to the line?}}

• 3.5 in.
• 3.5 mm.
• 3.5 cm
• 35 cm.

Why is a decision matrix an important tool to use in the design process?

• A decision matrix determines the best solution by comparing design ideas to the criteria and constraints
• A decision matrix is used to identify the criteria, constraints, and deliverables
• A decision matrix organizes your sketches, models, and brainstorming
• A decision matrix is a contract between the client and the designer

Engineers, scientists, and designers innovate products by taking apart existing products and observing and documenting how they work to determine how they can be improved. What is this process is called?

• Statistical analysis
• Mathematical modeling
• Mechanical dissection
• 3D modeling

^{The dimensions shown in the sketch are in inches. From this multiview sketch, what is the volume of this rectangular prism?}

• 46 cm³
• 46 cm²
• 15 cm²
• 15 in³