IB DP Physics: SL复习笔记2.3.5 Power
Power The power of a mechanical process is the rate at which energy is transferred Since work done is equal to the energy transferred, power can also be defined as the rate of doing work or the wor...
IB DP Physics: SL复习笔记2.3.4 Work Done
Work Done Work is defined as The amount of energy transferred when an external force causes an object to move over a certain distance If the force is parallel to the direction of the object's displ...
IB DP Physics: SL复习笔记2.3.3 Elastic Potential Energy
Elastic Potential Energy Elastic potential energy is defined as The energy stored within a material (e.g. in a spring) when it is stretched or compressed It can be found from the area under the for...
IB DP Physics: SL复习笔记2.3.2 Gravitational Potential Energy
Gravitational Potential Energy Gravitational potential energy (Ep) is energy stored in a mass due to its position in a gravitational field If a mass is lifted up, it will gain Ep (converted from ot...
himcm竞赛培训及竞赛报名费怎么样？
全美一半以上的专业机构资助与认证，数学类含金量最高的国际学术活动之一，那就是美国高中生数学建模学术活动HiMCM！比赛时间越发临近，himcm学术活动培训也该提上日程。 除了上述提到的赛事背景，HiMCM还是为数...
IB DP Physics: SL复习笔记2.3.1 Kinetic Energy
Kinetic Energy Kinetic energy (Ek) is the energy an object has due to its motion (or velocity) The faster an object is moving, the greater its kinetic energy When an object is falling, it is gainin...
IB DP Physics: SL复习笔记2.2.6 Friction
Friction Friction is a force that works in opposition to the motion of an object It occurs between two solid bodies that are in contact with one another The opposition of friction slows down the mo...
IB DP Physics: SL复习笔记2.2.5 Applying Newton’s Laws of Motion
Applying Newton’s Laws of Motion Newton's laws of motion are strong tools to understand the motion of objects with forces acting upon them Below are two worked examples demonstrating different situ...
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 ...
