IB DP Physics: HL復習筆記9.1.4 Examples of SHM
Period of a Simple Pendulum & a Mass-Spring System Two examples of simple harmonic oscillators are: A simple pendulum A mass-spring system Considering equations related to the restoring force l...
IB DP Physics: HL復習筆記9.1.3 Calculating Energy Changes in SHM
Calculating Energy Changes in SHM There are many equations to learn in the topic of simple harmonic motion The key equations are summarised below: A summary of the equations related to simple harmo...
IB DP Physics: HL復習筆記9.1.2 Energy Changes in SHM
Energy Changes in SHM During?simple harmonic motion, energy is constantly exchanged between two forms: Kinetic?energy Potential?energy The potential energy could be in the form of: Gravitational po...
IB DP Physics: HL復習筆記9.1.1 The Defining Equation of SHM
The Defining Equation of SHM Simple harmonic motion (SHM)?is a fundamental oscillation which appears naturally in various phenomena, including: The swing of a pendulum A mass on a spring Guitar str...
IB DP Physics: HL復習筆記8.2.5 Earth's Surface–Atmosphere System
Earth's Surface–Atmosphere System It is useful to consider Earth’s energy balance in terms of how much incoming energy from the Sun is used and how much is returned to space If incoming and outgoin...
AQA A Level Maths: Pure復習筆記4.4.2 Geometric Series
Geometric Series How do I find the sum of a geometric series? A?geometric series?is the sum of the terms of a?geometric sequence The following formulae will let you find the sum of the first...
IB DP Physics: HL復習筆記8.2.4 The Greenhouse Effect
Greenhouse Gases When radiation from the Sun hits the Earth, it is radiated back from the Earth's surface as long-wave radiation A greenhouse gas is a gas that absorbs this re-radiated radiation, t...
IB DP Physics: HL復習筆記8.2.3 The Solar Constant, Albedo & Emissivity
The Solar Constant Since life on Earth is entirely dependant on the Sun’s energy, it is useful to quantify how much of its energy reaches the top of the atmosphere This is known as the solar consta...
IB DP Physics: HL復習筆記8.2.2 Black-Body Radiation
Black-Body Radiation Black body radiation is the name given to the?thermal radiation?emitted by all bodies (objects) All objects, no matter what temperature, emit black body radiation in the form o...
美國名校是如何進行劃分的？常春藤、公立常春藤、新常春藤區別是什么？
美國的名校，多少都有title傍身，最早我們熟悉的就是常春藤聯盟（IVY League），雖說是以一個體育聯盟的名義起家，但是依舊代表了美國私立教育的最高水準，很多人都以爬藤為目標。隨著教育水平的提高、各個學校綜...
IB DP Physics: HL復習筆記8.2.1 Conduction, Convection & Thermal Radiation
Conduction Thermal energy transfers from hotter areas to cooler areas by the processes of: Conduction Convection Radiation Objects will?always?lose heat until they are in thermal equilibrium (same ...
AQA A Level Maths: Pure復習筆記4.4.1 Geometric Sequences
Geometric Sequences What do I need to know about geometric sequences? In a?geometric sequence,?there is a?common ratio?between consecutive terms in the sequence You need to know the?nth?term...
