Tag
physics
15 entries tagged physics.
Physics & Space
Classical Mechanics
- Classical Mechanics: The MapPhysics becomes much easier once the formulas stop looking like unrelated tricks.
- Fluids: Pressure, Buoyancy, and FlowA fluid cannot sustain a static shear stress the way a rigid solid can. It deforms and flows.
- Forces and Newton's LawsKinematics says how motion changes. Dynamics asks why.
- From AP Physics 1 to Physics C Mechanics: What Calculus AddsAP Physics 1 and AP Physics C: Mechanics describe largely the same classicalmechanics world.
- Kinematics: Position, Velocity, and AccelerationKinematics describes motion without yet asking what causes it.
- Linear Momentum, Impulse, and CollisionsMomentum becomes especially powerful when forces are large, complicated, and shortlived — collisions, explosions, catches, impacts.
- Oscillations and Simple Harmonic MotionMany systems displaced from a stable equilibrium experience a force pushing them back toward it.
- Rotational Energy and Angular MomentumRotation has close analogues of the energy and momentum ideas used for translation.
- Torque and Rotational DynamicsA force can change an object's translational motion. But for an extended object, where the force acts also matters.
- Work, Energy, and PowerForce is a local description: what interaction acts right now?
Physics & Space
Physical Principles
- Chaos: Sensitive Dependence Without RandomnessIn ordinary speech, "chaos" means disorder.
- Double Pendulum: Two Simple Joints, Nonlinear MotionA simple pendulum already has nonlinear dynamics at large angles.
- EntropyEntropy is often introduced as “disorder,” but that metaphor fails surprisingly quickly. The more useful statistical idea is multiplicity: how many microscopic arrangements correspond to the same macroscopic state.
- Galileo Thermometer: Temperature Read Through BuoyancyA Galileo thermometer looks like a sealed glass column containing several floating glass bulbs, each carrying a temperature tag.
Physics & Space
Relativity
- Special RelativitySpecial relativity starts from two principles: