IB DP Physics: HL復習筆記3.1.2 Temperature
Temperature Temperature?is a measure of how hot or cold objects are Temperature also determines the direction in which thermal energy will flow between two objects (or between an object and its sur...
IB DP Physics: HL復習筆記3.1.1 Solids, Liquids & Gases
Solids, Liquids & Gases The three states of matter are?solid,?liquid?and?gas The?kinetic theory of matter?is a model that attempts to explain the properties of the three states of matter In thi...
IB DP Physics: HL復習筆記2.4.4 Collisions & Explosions
Collisions & Explosions In both collisions and explosions,?momentum is always conserved However,?kinetic energy?might not always be A collision (or explosion) is either: Elastic?– if the kineti...
三大國際課程體系大事連連，國際生到底應該如何應對？
近期三大國際課程體系大事真真是一件接一件啊！IB放榜“爆冷”，AP放榜，五分率穩健增長，A-Level 2023年或大改革。 IB滿分人數腰斬！今年全球有173878人（去年165,857人）參加IB考試，人數上漲，但平均成績卻下降...
IB DP Physics: HL復習筆記2.4.3 Conservation of Linear Momentum
Conservation of Linear Momentum The principle of conservation of linear momentum states: The total momentum before a collision = the total momentum after a collision provided no external force acts...
IB DP Physics: HL復習筆記2.4.2 Impulse
Impulse The force and momentum equation can be rearranged to find the impulse Impulse,?I, is equal to the?change in momentum:? I?=?FΔt?= Δp?=?mv?–?mu Where: I =?impulse (N s) F?= force (N) t =?time...
IB DP Physics: HL復習筆記2.4.1 Force & Momentum
Force & Momentum Linear momentum,?p, is defined as the product of mass and velocity Momentum is a?vector?quantity - it has both a?magnitude?and a?direction This means it can have a negative or ...
IB DP Physics: HL復習筆記2.3.7 Efficiency
Efficiency The efficiency of a system is a measure of how well energy is transferred in a system Efficiency is defined as: The ratio of the useful power or energy transfer output from a system to i...
IB DP Physics: HL復習筆記2.3.6 Principle of Conservation of Energy
Principle of Conservation of Energy The Principle of Conservation of Energy states that: Energy cannot be created or destroyed, it can only be transferred from one form to another This means the to...
