Stress & Strain Stress Stress is the?applied force per unit cross sectional area?of a material Forces can be; Tensile forces, which pull on an object and extend it Compressive forces, which pus...
Hooke's Law When a force?F?is added to the bottom of a vertical metal wire of length?L, the wire?stretches A material obeys Hooke’s Law if: The extension of the material is directly proportional to...
AP化學其實說難也不難，說簡單也不簡單，因為化學知識點又多又雜，太煩啦！而且AP化學5分率低，導致有不少同學不太敢選化學……但是對于打算申請生物化學、物理、環境科學相關專業，或者想提升課程難度、證明個人能...
在許多AP科目中，化學的五分率一直不高，AP化學5分容錯率為25%左右，作為大部分理、工科學生必修的一門課程，是很多同學報考的科目。AP化學考試內容有哪些？2023年AP課程考試報名開啟！尤其是社會考生！ AP化學課...
Core Practical 4: Investigating Viscosity of a Liquid Aim of the Experiment By allowing small spherical objects of known weight to fall through a fluid until they reach terminal velocity, the?visco...
Stoke's Law Viscous Drag Viscous drag is defined as the frictional force between an object and a?fluid?which opposes the the motion between the object and the fluid Viscous drag is calculated using...
Upthrust Archimedes' Principle Archimedes’ principle states: An object submerged in a fluid at rest has an upward buoyancy force (upthrust) equal to the weight of the fluid displaced by the object ...
Density Density is the?mass per unit volume?of an object Objects made from low-density materials typically have a lower mass For example, a balloon is less dense than a small bar of lead des...
Modelling the Variation of Resistance with Illumination Light can cause a change in conductivity of some semi-conductors When light is absorbed by the material it causes more electrons to be availa...
