IB DP Physics: SL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: SL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 ...
8月全国雅思考位名额暂满，应该如何应对？
雅思官网锁住了2022年8月份全国考位，8月份所有考试均显示名额暂满的状态，同学们纷纷猜测，难道和台海有关？莫非是佩洛西访台？ 其实和这些都没关系。 8月雅思笔考/机考情况 △图源：雅思考试报名官网 我们查询了...
IB DP Physics: SL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: SL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: SL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...
2023年AP宏观经济学考试变化你都了解吗？考纲部分有所调整
近日，CB官方公布AP经济的考纲部分调整：同学们可以在经济考试中携带并使用计算器，这项调整将于2022-23学年（2023年考试）正式生效。官方此次更新了计算器使用政策页面、AP微观/宏观经济考试页面以及AP微观/宏观...
IB DP Physics: SL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: SL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: SL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: SL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: SL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...
