character: Sir Isaac Newton
topic: Gravity and Free Fall
grade: 10
subject: Physics
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character: Galileo Galilei
topic: Free Fall and Acceleration
grade: 10
subject: Physics
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character: Albert Einstein
topic: General Relativity and Gravity
grade: 10
subject: Physics
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character: Aristotle
topic: Early Theories of Motion
grade: 10
subject: Physics
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