2022年1-4月雅思作文真題匯總
眾所周知，雅思寫作題庫會重復。每隔一段時間，雅思就會拿出舊題再利用。特別是近年來，受疫情影響，雅思題庫更新緩慢，重復率更高。舊題再現已經逐漸成為考試常態。 為了幫助大家知己知彼，更好地準備雅思寫作，...
IB DP Physics: HL復習筆記9.3.1 Young’s Double-Slit Experiment
Young’s Double-Slit Experiment Young’s double-slit experiment demonstrates how light waves can produce an?interference pattern The setup of the experiment is shown below: Young’s double-slit experi...
IB DP Physics: HL復習筆記9.2.2 Intensity of Interference Maxima & Minima
Intensity of Interference Maxima & Minima Using different sources of?monochromatic light?demonstrate that: Increasing the?wavelength?increases the?width?of the fringes The?angle of diffraction?...
IB DP Physics: HL復習筆記9.2.1 The Nature of Single-Slit Diffraction
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...
CB官方強烈推薦的高中必讀101本英文課外讀物
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...
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...
