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Speaking to Explain Concepts and Causes
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Speech & Debate
SD.090 Speaking to Explain Concepts and Causes
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A student uses the solar-system model of the atom. Which explanation best protects the audience from taking the analogy too literally?
A
The model can help show a small central nucleus with electrons associated around it, but electrons are described by quantum states and probability distributions rather than tiny planets following definite classical orbits.
B
Electrons orbit the nucleus on fixed miniature planetary paths, so the analogy is a complete picture of atomic behavior.
C
The analogy is accurate only because gravity and electric force are the same force at different scales.
D
Atoms and solar systems are unrelated in every way, so the analogy cannot support any introductory idea.
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