美國留學STEM專業有哪些大學可以選擇？
STEM專業因為集聚發展潛力，世界各國都把培養更多相關專業人才作為今后發展的目標。中國留學生中超過40%選擇了STEM專業。它意味著更多、更好地就業機會，以及三年OPT簽證。 美國留學STEM專業有哪些大學可以選擇？...
美本申請Commom App開放，美本申請怎么準備？
8月1日，2022-2023年美本申請Commom App平臺將按承諾開放注冊，這意味著美國大學申請正式開始，大部分學生將在未來一段時間內經歷提前申請，UC申請、常規申請等階段，直到收獲夢想學校Offer。在這段時間里，我們...
IB DP Physics: HL復習筆記6.1.2 Centripetal Force
Centripetal Force An object moving in a circle is not in equilibrium, it has a resultant force acting upon it This is known as the?centripetal force?and is what keeps the object moving in a circle ...
IB DP Physics: HL復習筆記6.1.1 Circular Motion
Properties of Circular Motion For an object moving in a circle, it will have the following properties: Period Frequency Angular displacement Angular velocity These properties can be inferred from t...
IB DP Physics: HL復習筆記5.4.4 Solving Problems Involving Magnetic Forces
Solving Problems Involving Magnetic Forces There is a lot of mathematics surrounding magnetism and magnetic forces The key equations are: Force on a current-carrying conductor: F = BIL Force on a m...
IB DP Physics: HL復習筆記5.4.2 Magnetic Force on a Charge
Magnetic Force on a Charge Calculating Magnetic Force on a Moving Charge The magnetic force on an isolating moving charge, such an electron, is given by the equation: F = BQv sinθ Where: F = force ...
IB DP Physics: HL復習筆記5.4.1 Magnetic Fields
Magnetic Fields Magnetic Field Definition A magnetic field is a?field of force?that is created either by: Moving?electric charge Permanent?magnets Permanent magnets are materials that produce a mag...
IB DP Physics: HL復習筆記5.3.4 Electromotive Force & Internal Resistance
Electromotive Force When charge passes through a power supply such as a battery, it?gains?electrical energy The?electromotive force (e.m.f)?is the amount of?chemical?energy converted to?electrical?...
IB DP Physics: HL復習筆記5.3.3 Terminal Potential Difference
Terminal Potential Difference Defining Potential Difference A cell makes one end of the circuit positive and the other negative. This sets up a?potential difference?V?across the circuit The potenti...
