Physics This subject tutorial provides lesson tutorials across several Physics topics and is designed to help you gain a wider understanding of Physics as a subject. Lessons What is physics? What is Newton's first law? What is Newton's third law? What is Weight? What is Normal Force? What is Friction? What is Energy And Work? What is kinetic energy? Conservation of Energy Unit conversion and Dimensional Analysis How to read scientific graphs and charts What is temperature? Fahreneheit Degree and conversion Celsius Degrees and Conversion Calculating volume by displacement Definition of Force Forces - Balanced and Unbalanced Newton's First Law and Examples Newton's Second Law and Effect Newton's Laws - Weight, Mass and Gravity Newton's Third Law and Effects Friction and Types of Frictions What are Simple Machines? Pulleys and System Hooke's Law What is Centripetal Force? States of Matter - solids, liquid and gas Waves and Vibrations What is Energy? What is work? Work and Energy Connection What is Mechanical Energy? Conservation of Energy What is Power? What is Momentum? Momentum and Impulse What is Buoyancy? What is Density? What is Physics?