Shirley and Bob are testing three mathematical models to see which one is best for modeling the power consumption of their school. They should determine which model is best by choosing the one that:

• uses information that is easiest to obtain.
• reports the lowest power consumption.
• most closely matches the current power consumption.
• uses variables most important to the study of power consumptions.

If Fred were to design a new cell phone and builds a replica of the case, he would be constructing a(n):

• duplicate
• mock-up
• prototype
• experiment

Three-dimensional models are typically used for:

• simulating and testing design ideas.
• small batch production.
• a technical drawing.
• optimizing the manufacturing process.

The productivity of a design may be established by testing a:

• prototype
• Working drawing
• Mock-up
• Conceptual model

A working model used to test a design during development is called a:

• prototype.
• constraint.
• product.
• master design.

When designing a roof for a greenhouse a variety of angles must be measured and cut accurately. What tool should be used to measure the angles?

• French curve
• Laser
• Protractor
• Ruler

Which design project would most likely require using computer-based simulation for testing?

• Truss bridge
• Rocking chair
• Screen door
• Baseball glove

The exchange of information in visual form, such as words, drawings, photographs, or a combination of these is:

• linear logo.
• conceptual/graphic communication.
• mathematical modeling.
• virtual design.

What is the best choice for communicating information about the design process used to develop a plan for a new mass transit system?

• A three-dimensional model of a bus that runs on ethanol
• Drawings of different mass transit routes
• A list of ideas about mass transit problems
• A flow chart showing steps in coming up with the plan

When testing electric motors, students discovered that when the input power increased, the speed of the motor shafts increased. Which graphical representation would best enable the students to systematically examine this relationship?

• Bar Chart
• Line Graph
• Pie Chart
• Scatter Plot