Potential Gradient Electric Potential Gradient An electric field can be defined in terms of the variation of electric potential at different points in the field: The electric field at a particular ...
Potential Energy Calculations Electric Potential Energy of Two Point Charges The electric potential energy Ep at point in an electric field is defined as: The work done in bringing a charge from in...
Potential & Potential Energy Work Done on a Mass When a mass is moved against the force of gravity, work is done The work done in moving a mass m is given by: Where: ∆W = change in work done (J...
Equipotential Surfaces Equipotential lines (when working in 2D) and surfaces (when working in 3D) join together points that have the same gravitational potential These are always: Perpendicular to ...
Gravitational & Electrostatic Potential Gravitational Potential The gravitational potential energy (G.P.E) is the energy an object has when lifted off the ground G.P.E is given by the familiar ...
Gravitational & Electrostatic Field Lines Gravitational Field Lines The direction of a gravitational field is represented by gravitational field lines The gravitational field lines around a poi...
美本2023年秋季入学申请，往往由8月1日（周一）Common App注册开放拉开序幕。在未来的一段时间里，将陆陆续续有学生进入CA申请系统，填写申请表上的各项内容，正式走入申请季。 那除了芝加哥大学、康奈尔大学等在...
Gravitational & Electrostatic Fields A field can be defined as A region in which an object will experience a force, such as gravitational or electrostatic, at a distance A gravitational field c...
The Doppler Equation Calculating Doppler Shift When a source of sound waves moves relative to a stationary observer, the observed frequency can be calculated using the equation below: Doppler shift...
Uses of The Doppler Effect The Doppler effect is important in many key areas of science including: Radar readings for moving objects Measuring the rate of blood flow within a patient Finding planet...
GCSE学习结束后，学生开始逐步接触A-Level课程学习然后开始准备大学申请。那么在G5名校中，除了A-Level成绩，GCSE是否也会作为评估标准呢？如果是GCSE成绩也要评估，那么G5对他又有哪些要求呢？ 牛津大学 ...
The Doppler Effect When a source of sound, such as the whistle of a train or the siren of an ambulance, moves away from an observer: It appears to decrease in frequency, i.e. it sounds lower in pit...
