Skip to main content Breadcrumb Go home Go home Shop Language English Deutsch Search All about physics Courses Lessons Videos Arguments Questions Exercises Formulary Illustrations Log into an avatar Email or Avatar-ID Password Unlock upgrades✅ Unlock all physics videos✅ Unlock all exercise solutions✅ Unlock "Rearrange equations"✅ Unlock all downloads✅ Hide adsDo you want to unlock all content and features?Yes, I want! Physics: Questions and AnswersDo you have a physics question that starts with What, How, Where or Why? Here you will find 34 questions and short but precise answers from different disciplines of physics.Questions of a specific discipline QuestionsPhysics QuestionsMechanics QuestionsThermodynamics QuestionsElectrodynamics QuestionsOptics QuestionsQuantum Mechanics QuestionsSolid State Physics QuestionsMathematics Max. Level - Any -Level 1 (suitable for all)Level 2 (without higher mathematics)Level 3 (with higher mathematics)Level 4 (for physics pros) Question What is the Difference Between an Ohmic and Non-Ohmic Conductor? Question What is Epitaxy? Question How Does Physical Vapor Deposition (PVD) Work? Question Why are lattice vibrations called optical and acoustic?