Mechanics
Dynamics
Explain motion: forces, mass, friction
3 skills · Last skill is Premium
Dynamics explains why motion changes. Practice Newton's laws, friction, and motion on an inclined plane, including the difference between mass and weight.
Skills in this topic
Newton's Laws
Apply F = ma, add forces along a line, and tell mass from weight
Friction
Find the friction force from the normal force and the net force on a sliding object
Inclined Plane
Resolve weight along a slope and find the acceleration with and without friction
Guides
Understanding Work and Energy Intuitively (The Bookkeeping Shortcut)
Work is force times distance, energy is the ledger it fills, and conservation is the ledger balancing. Kinetic, potential, friction, power, when to skip Newton.
Understanding Momentum Intuitively (The Second Ledger, and Why Collisions Obey It)
Momentum is mass times velocity, impulse is what changes it, and collisions conserve it even when energy is lost. The picture behind p = mv and every collision.
How to Prepare for AP Physics 1: A Study Plan for the Current Course
AP Physics 1 is now an eight-unit mechanics course. What the exam tests after the Fall 2024 revision, what it no longer covers, and a practice plan that matches the current paper.
Exam paths that include this topic
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