Edexcel A Level Physics:复习笔记13.6 Resonance
Resonance The frequency of forced oscillations is referred to as the driving frequency, f, or the frequency of the applied force All oscillating systems have a natural frequency, f0, this is define...
Edexcel A Level Physics:复习笔记13.5 Velocity-Time Graph for an Oscillator
Velocity-time graph for an oscillator The velocity of an object in simple harmonic motion can be represented by a graph of velocity against time Key features of the velocity-time graph: It is 90o o...
Edexcel A Level Physics:复习笔记13.4 Displacement-Time Graph for an Oscillator
Displacement-Time graph for an oscillator The displacement of an object in simple harmonic motion can be represented by a graph of displacement against time All undamped SHM graphs are represented ...
Edexcel A Level Physics:复习笔记13.3 Period of Simple Harmonic Oscillators
Period of a simple pendulum A simple pendulum is: An object moving from side to side Attached to a fixed point above The time period of a simple pendulum can also be calculated using this equation:...
Edexcel A Level Physics:复习笔记13.2 Equations for Simple Harmonic Motion
Equations for Simple Harmonic Motion Acceleration and SHM Acceleration a and displacement x can be represented by the defining equation of SHM: a ∝ −x The acceleration of an object oscillating in s...
Edexcel A Level Physics:复习笔记13.1 Conditions for Simple Harmonic Motion
Conditions for Simple Harmonic Motion Simple harmonic motion (SHM) is a specific type of oscillation An oscillation is said to be SHM when: The acceleration is proportional to the displacement The ...
Edexcel A Level Physics:复习笔记12.7 Orbital Motion
Orbital Motion Newton's Law of Gravitation & Orbits Since most planets and satellites have a near circular orbit, the gravitational force FG between the sun or another planet provides the centr...
2023耶鲁大学顶级夏校YYGS开放申请！
耶鲁大学全球青年学者项目(YYGS) 正式开启2023暑期项目招生ED早申请。YYGS 是世界上最具全球多样性的为期两周的学术暑期项目之一。 YYGS被誉为竞争最激烈的夏校之一。因其面向全世界招生，申请量之多录取率之低几...
Edexcel A Level Physics:复习笔记12.6 Comparing Electric & Gravitational Fields
Comparing Electric & Gravitational Fields The similarities and differences between gravitational and electrostatic forces are listed in the table below: Table Comparing G and E Fields Similarit...
Edexcel A Level Physics:复习笔记12.5 Gravitational Potential for a Radial Field
Gravitational Potential for a Radial Field Near the Earth's Surface The gravitational potential energy (G.P.E) is the energy an object has when lifted off the ground given by the familiar equation:...
Edexcel A Level Physics:复习笔记12.4 Gravitational Field due to a Point Mass
Gravitational Field due to a Point Mass The gravitational field strength at a point describes how much gravitational force is experienced by a test mass at that point The strength of a gravitationa...
Edexcel A Level Physics:复习笔记12.3 Newton’s Law of Universal Gravitation
Newton's Law of Universal Gravitation The gravitational force between two masses, e.g., between the Earth and the Sun, is defined by Newton’s Law of Universal Gravitation Newton’s Law of Universal ...
