Motion · interaction · conservation
Mechanics
Study how physical systems move, what interactions change that motion, and which quantities let us compare the system before and after the change.
Mechanics throughline
Describe the change → explain the interaction → track what is conserved.
Motion gives the language, forces explain changes in motion, and energy and momentum let us reason across an interaction without replaying every instant.
01
Describe change before explaining its cause.
Motion
Where is an object, how fast is it moving, and how is that motion changing?
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02
Explain why motion changes.
Forces & Dynamics
Which interactions push, pull, constrain, or redirect a physical system?
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03
Track what is transferred or conserved.
Energy & Momentum
What can we learn about a system without following every instant of its motion?
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