Describe the properties and uses of ceramics (hard, brittle, heat-resistant), polymers (flexible, lightweight, variable), and composites (combine properties of constituent materials), giving real-world examples of each
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Question 1 of 3
An aerospace engineer needs a material for a wing spar that must be lightweight, have high tensile strength, and resist fatigue over many flight cycles. Which of the following material choices best meets these requirements and also illustrates why a composite is preferred over a single material?
Question 2 of 3
Which statement correctly explains how a synthetic material such as nylon is obtained and how it influences society?
Question 3 of 3
A sports equipment designer is choosing a material for a new tennis racket. The racket must be extremely stiff to transfer energy to the ball, very light so a player can swing it quickly, and it should damp vibrations so the arm feels comfortable. Which reason best explains why a carbon‑fibre‑reinforced polymer (a composite) would be chosen instead of using a single material such as pure aluminum?
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