The Nature of Single-Slit Diffraction When plane waves are incident normally on a single slit, a?diffraction pattern?is produced This is represented as a series of light and dark?fringes?which show...
中學生的詞匯量一般不低，但閱讀英語原版書籍仍然很困難。這是因為中國和美國的學生閱讀量差異很大。要有扎實的英語技能，除了記憶單詞外，還要注意閱讀。 通過課外閱讀來提升學生的學習興趣，進而提高詞匯量是值...
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...
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...
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...
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...
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...
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...
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...
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...
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...
