IB DP Physics: SL復習筆記6.2.2 Circular Orbits
Circular Orbits Since most planets and satellites have a near circular orbit, the gravitational force?FG?between the sun or another planet provides the?centripetal force?needed to stay in an orbit ...
AP美國史考察內容解讀，應該如何備考？
相信很多中國學生對AP美國歷史并不是很感興趣，認為枯燥且難，學了也拿不上高分。但其實，作為一門“偏文”的AP科目，學好AP美國歷史不僅能展示出學生的學術能力，還可體現出申請者是一個敢于挑戰，全面發展的學生...
IB DP Physics: SL復習筆記6.2.1 Newton’s Law of Gravitation
Newton's Law of Gravitation The gravitational force between two bodies outside a uniform field, e.g. between the Earth and the Sun, is defined by Newton’s Law of Gravitation Recall that the mass of...
IB DP Physics: SL復習筆記6.1.4 Applications of Circular Motion
Applications of Circular Motion Horizontal Circular Motion An example of horizontal circular motion is a vehicle driving on a curved road The forces acting on the vehicle are: The?friction?between ...
IB DP Physics: SL復習筆記6.1.3 Centripetal Acceleration
Centripetal Acceleration For an object moving in a circle: The acceleration is towards the centre of the circle The magnitude of the centripetal acceleration?a?is: Where: a =?centripetal accelerati...
IB DP Physics: SL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: SL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: SL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...
A-level化學都在學什么？到底應該如何備考？
作為A-Level考試中的熱門選手，化學一直是同學們又愛又恨的存在：各種各樣的反應式，專有名詞，實驗操作實在讓人應接不暇，然而這背后又有相對較高的A和A*率。 今天就讓我們好好來看看A-level化學都在學什么？到...
