character: Ms. Jones
topic: Stress and Strain in Materials
grade: 9
subject: Physics
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character: Mr. Smith
topic: Material Properties and Their Applications
grade: 9
subject: Physics
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character: Dr. Thompson
topic: Understanding Elasticity in Materials
grade: 9
subject: Physics
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character: Ms. Lee
topic: Types of Stress in Physics
grade: 9
subject: Physics
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