Interactive, scaffolded model
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Students explore how Newton's three laws apply to the world of atoms and molecules. Observations start with the originally contradictory observation of Brownian motion. Then, each law is addressed at the atomic level. Examples of the laws in real‐world applications are given to help students make sense of how these laws are always at work.
Students will be able to:
• Describe how Newton’s Laws are relevant and in action at the atomic level.
• Observe how Brownian motion seems to contradict Newton’s first law and deduce how interactions of individual atoms can approximate Brownian motion.
• Use models to experimentally derive Newton’s second law (F=ma) and determine why some atoms move faster than others when equal forces are applied.
• Explain how attraction between atoms (either neutral or oppositely charged) relates to Newton’s third law.
• Analyze a real‐world example showing Newton’s third law.
Additional Related Concepts
Fermi Lab's ARISE Project suggests the following enhancement to this SAM unit: http://www.concord.org/~barbara/SAM/ARISE/ARISE_SAM_Newton's_Laws.pdf
Created by CC Project: SAM using Molecular Workbench