IB DP Physics: HL复习笔记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复习笔记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复习笔记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复习笔记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复习笔记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...
IB DP Physics: HL复习笔记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复习笔记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复习笔记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...
IB DP Physics: HL复习笔记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 ...
