2022 HiMCM美国高中数学建模竞赛火热组队报名中，竞赛流程了解一下
美国高中数学建模学术活动（High School Mathematical Contest in Modeling，简称HiMCM）是美国的一个非营利机构——美国数学及其应用联合会（COMAP）主办的一项国际性的数学学术活动活动，旨在提高学生数学建模、...
IB DP Physics: HL复习笔记2.2.4 Newton’s Third Law
Newton’s Third Law Newton’s third law of motion states: Whenever two bodies interact, the forces they exert on each other are equal and opposite Newton’s third law explains the following important ...
IB DP Physics: HL复习笔记2.2.3 Newton’s Second Law
Newton's Second Law Newton's Second Law states: The resultant force is equal to the rate of change in momentum. The change in momentum is in the same direction as the resultant force This can also ...
IB DP Physics: HL复习笔记2.2.2 Newton’s First Law
Newton’s First Law Newton's First Law states: A body will remain at rest or move with constant velocity unless acted on by a resultant force If the net force acting on an object is zero it is said ...
IB DP Physics: HL复习笔记2.2.1 Free-Body Diagrams
Vectors In physics, during force interactions, it is common to represent situations as simply as possible without losing information When considering force interactions objects can be represented a...
IB DP Physics: HL复习笔记2.1.8 Terminal Speed
Fluid Resistance & Terminal Speed Fluid Resistance When an object moves through a fluid (a gas or a liquid) then there are resistive forces for that movement. These forces are known as drag for...
IB DP Physics: HL复习笔记2.1.7 Projectile Motion
Projectile Motion The trajectory of an object undergoing projectile motion consists of a vertical component and a horizontal component These need to be evaluated separately Some key terms to know, ...
IB DP Physics: HL复习笔记2.1.6 Acceleration of Free Fall Experiment
Acceleration of Free Fall Experiment The acceleration of free fall, g, is defined as: The acceleration of any object in response to the gravitational attraction between the Earth and the object Any...
IB DP Physics: HL复习笔记2.1.5 Uniform Acceleration
Equations of Motion for Uniform Acceleration Deriving Kinematic Equations of Motion The kinematic equations of motion are a set of four equations that can describe any object moving with constant a...
IB DP Physics: HL复习笔记2.1.4 Graphs Describing Motion
Motion Graphs Three types of graphs that can represent motion are displacement-time graphs, velocity-time graphs, and acceleration-time graphs Displacement-Time Graph On a displacement-time graph… ...
IB DP Physics: HL复习笔记2.1.3 Acceleration
Acceleration Acceleration is defined as the rate of change of velocity In other words, it describes how much an object's velocity changes every second The equation below is used to calculate the av...
IB DP Physics: HL复习笔记2.1.2 Speed & Velocity
Speed & Velocity Speed The speed of an object is the distance it travels every second Speed is a scalar quantity This is because it only contains a magnitude (without a direction) The average s...
