2022 AMC10/12競賽倒計時，AMC歷年真題集等你來領！
AMC是美國數學思維活動（American Mathematics Competitions）的簡稱，是一項面向世界中學生的數學思維訓練，目前每年全球有超過6000所學校的30萬名學生參加該活動，是當今世界上最科學、最權威、最具信譽度的數...
Edexcel A Level Physics:復習筆記7.4 Electric Field due to a Point Charge
Electric Field due to a Point Charge The?electric field strength?describes how strong or weak an electric field is at that point A?point charge?produces a?radial?field A charge sphere also acts lik...
Edexcel A Level Physics:復習筆記7.3 Electric Force between Two Charges
Electric Force between Two Charges All charged particles produce an electric field around them This field exerts a force on any other charged particle within range The electrostatic force be...
Edexcel A Level Physics:復習筆記7.2 Electric Field Strength
Electric Field Strength The?electric field strength?at a point is defined as: The force per unit charge acting on a positive test charge at that point The electric field strength can be calculated ...
Edexcel A Level Physics:復習筆記7.1 Defining an Electric Field
Defining an Electric Field An electric field is defined as a region of space in which a?charged?particle experiences a?force Hence, electric fields are a type of?force field The charged particle co...
Edexcel A Level Physics:復習筆記6.11 Centripetal Force
Centripetal Force ?Centripetal force can be calculated using any of the following equations: Centripetal force is always perpendicular to the direction of travel Where: F?= centripetal force...
Edexcel A Level Physics:復習筆記6.10 Maintaining Circular Motion
Maintaining Circular Motion An object moving in a circle is not in equilibrium, it is constantly changing direction Therefore, in order to produce circular motion, an object requires a?resultant fo...
Edexcel A Level Physics:復習筆記6.9 Centripetal Acceleration
Deriving Equations for Centripetal Acceleration An object moving in?uniform circular motion?travels with a constant?angular velocity?and?angular speed However, its?direction?is always changing Ther...
2022年AMC數學競賽報名即將截止！MIT官網推薦的26個高含金量活動還有哪些？
AMC是美國數學思維活動（American Mathematics Competitions）的簡稱，是一項面向世界中學生的數學思維訓練，目前每年全球有超過6000所學校的30萬名學生參加該活動，是當今世界上最科學、最權威、最具信譽度的數...
