IB DP Physics: HL復(fù)習(xí)筆記3.1.6 Phase Change
Phase Change A?phase change?happens whenever matter changes its state During a phase change, thermal energy is transferred to or from a substance This energy transfer does?not change the temperatur...
IB DP Physics: HL復(fù)習(xí)筆記3.1.5 Specific Latent Heat
Specific Latent Heat During a?phase change?(i.e. a change of state) thermal energy is transferred to a substance or removed from it, while the temperature of the substance does not change In this c...
IB DP Physics: HL復(fù)習(xí)筆記3.1.4 Specific Heat Capacity
Specific Heat Capacity The amount of thermal energy needed to change the temperature of an object depends on: The change in temperature required?ΔT?- i.e. the larger the change in temperature the m...
IB DP Physics: HL復(fù)習(xí)筆記3.1.3 Internal Energy
Internal Energy When a substance gains or loses thermal energy, its?internal energy?increases or decreases The internal energy of a substance is defined as: The sum of the total kinetic energy and ...
IB DP Physics: HL復(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(yīng)該如何應(yīng)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(wěn)健增長，A-Level 2023年或大改革。 IB滿分人數(shù)腰斬！今年全球有173878人（去年165,857人）參加IB考試，人數(shù)上漲，但平均成績卻下降...
IB DP Physics: HL復(fù)習(xí)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...
