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Thermal Expansion and Material Behavior
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Grade Level
Physical Science with Earth and Science
9.66 Thermal Expansion and Material Behavior
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A spacecraft camera alternates between sunlight and shadow. Its lens mount and sensor must stay aligned. Which design response best addresses thermal expansion?
A
Use a rigid mount that prevents every atom from vibrating.
B
Paint the parts so thermal energy cannot enter or leave.
C
Use materials with the largest possible expansion mismatch.
D
Use materials with matched expansion rates or flexures that preserve alignment during temperature cycling.
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