Science

Physics library

Physics library

Welcome to the Physics library!

Physics is the study of matter, motion, energy, and force. Here, you can browse videos, articles, and exercises by topic. We keep the library up-to-date, so you may find new or improved material here over time.

One-dimensional motion

Introduction to physics: One-dimensional motionDisplacement, velocity, and time: One-dimensional motionAcceleration: One-dimensional motion

Kinematic formulas and projectile motion: One-dimensional motionOld videos on projectile motion: One-dimensional motion

Two-dimensional motion

Two-dimensional projectile motion: Two-dimensional motionOptimal angle for a projectile: Two-dimensional motion

Forces and Newton's laws of motion

Newton's laws of motion: Forces and Newton's laws of motionNormal force and contact force: Forces and Newton's laws of motionBalanced and unbalanced forces: Forces and Newton's laws of motion

Slow sock on Lubricon VI: Forces and Newton's laws of motionInclined planes and friction: Forces and Newton's laws of motionTension: Forces and Newton's laws of motionTreating systems: Forces and Newton's laws of motion

Centripetal force and gravitation

Circular motion and centripetal acceleration: Centripetal force and gravitationCentripetal forces: Centripetal force and gravitationNewton's law of gravitation: Centripetal force and gravitation

Work and energy

Work and energy: Work and energySprings and Hooke's law: Work and energyMechanical advantage: Work and energy

Impacts and linear momentum

Momentum and Impulse: Impacts and linear momentumElastic and inelastic collisions: Impacts and linear momentumCenter of mass: Impacts and linear momentum

Torque and angular momentum

Rotational kinematics: Torque and angular momentumTorque, moments, and angular momentum: Torque and angular momentum

Oscillations and mechanical waves

Simple harmonic motion: Oscillations and mechanical wavesSimple harmonic motion (with calculus): Oscillations and mechanical wavesIntroduction to mechanical waves: Oscillations and mechanical waves

Sound: Oscillations and mechanical wavesThe Doppler effect: Oscillations and mechanical wavesWave interference: Oscillations and mechanical waves

Fluids

Density and Pressure: FluidsBuoyant Force and Archimedes' Principle: FluidsFluid Dynamics: Fluids

Thermodynamics

Temperature, kinetic theory, and the ideal gas law: ThermodynamicsSpecific heat and heat transfer: ThermodynamicsLaws of thermodynamics: Thermodynamics

Electric charge, field, and potential

Charge and electric force (Coulomb's law): Electric charge, field, and potentialElectric field: Electric charge, field, and potentialElectric potential energy, electric potential, and voltage: Electric charge, field, and potential

Circuits

Ohm's law and circuits with resistors: CircuitsCircuits with capacitors: Circuits

Magnetic forces, magnetic fields, and Faraday's law

Magnets and Magnetic Force: Magnetic forces, magnetic fields, and Faraday's lawMagnetic field created by a current: Magnetic forces, magnetic fields, and Faraday's lawElectric motors: Magnetic forces, magnetic fields, and Faraday's law

Magnetic flux and Faraday's law: Magnetic forces, magnetic fields, and Faraday's law

Electromagnetic waves and interference

Introduction to electromagnetic waves: Electromagnetic waves and interferenceInterference of electromagnetic waves: Electromagnetic waves and interference

Geometric optics

Reflection and refraction: Geometric opticsMirrors: Geometric opticsLenses: Geometric optics

Special relativity

Michelson and Morley's luminiferous ether experiment: Special relativityMinkowski spacetime: Special relativityLorentz transformation: Special relativity

Einstein velocity addition: Special relativity

Quantum Physics

Photons: Quantum PhysicsAtoms and electrons: Quantum PhysicsQuantum numbers and orbitals: Quantum Physics

Nuclei: Quantum Physics

Discoveries and projects

Discovery of magnetism: Discoveries and projectsDiscovery of magnetic fields: Discoveries and projectsMeasuring magnetic fields: Discoveries and projectsDiscovery of batteries: Discoveries and projectsDiscovery of electromagnetism: Discoveries and projects

Discovery of resistors: Discoveries and projectsElectric motor: Discoveries and projectsElectrostatics: Discoveries and projectsProjectile launcher: Discoveries and projectsThermo can: Discoveries and projectsSimple machines explorations: Discoveries and projects

Review for AP Physics 1 exam

AP Physics 1 concept review: Review for AP Physics 1 examAP Physics 1 free response questions 2015: Review for AP Physics 1 exam

Cosmology and astronomy

Scale of the universe: Cosmology and astronomyStars, black holes and galaxies: Cosmology and astronomyEarth geological and climatic history: Cosmology and astronomy

Life on earth and in the universe: Cosmology and astronomy

Community questions