CIE A Level Maths: Mechanics复习笔记5.1.1 Momentum
Momentum What is momentum? Any object that has mass and is moving has momentum Momentum measures the quantity of motion that an object has Momentum is a vector quantity - so it has a magnitude and ...
CIE A Level Maths: Mechanics复习笔记4.2.1 Power
Power What is power? Power is developed as an engine or machine does work Power is the rate of doing work, usually by the driving force of an engine It is the same as work done per second The work ...
CIE A Level Maths: Mechanics复习笔记4.1.3 Energy Principles
Conservation of Energy What is conservation of energy? The principle of conservation of mechanical energy states that when a particle is moving and no external forces other than gravity act to do w...
CIE A Level Maths: Mechanics复习笔记4.1.2 Energy
Kinetic Energy There are many different forms of energy including, but not limited to, heat energy, light energy, chemical energy and nuclear energy. In this course we deal with a type of energy ca...
CIE A Level Maths: Mechanics复习笔记4.1.1 Work
Work What does the term work mean in Mechanics? In Mechanics the word work refers to the work done by a force when it causes an object to move Mechanical work happens when both a force is applied a...
CIE A Level Maths: Mechanics复习笔记3.3.5 Coefficient of Friction - Harder Problems
Coefficient of Friction - Equilibrium How is friction used when a body is in equilibrium? When a body is in static equilibrium under the action of a number of forces, including friction, the value ...
CIE A Level Maths: Mechanics复习笔记3.3.4 Coefficient of Friction - Inclined Planes
Coefficient of Friction - Inclined Planes How is the coefficient of friction used in problems involving inclined planes? On an inclined plane the basic principles are the same as for coefficient of...
CIE A Level Maths: Mechanics复习笔记3.3.3 Coefficient of Friction - F = ma
Coefficient of Friction - F = ma How do we apply Newton’s Second Law (F = ma) in problems involving friction? The coefficient of friction combined with F = ma allows you to determine an object's mo...
CIE A Level Maths: Mechanics复习笔记3.3.2 Coefficient of Friction
Coefficient of Friction What is friction? Friction is a force between a surface and an object that acts to resist motion of the object across the surface On a horizontal surface with no forces acti...
PWC普华永道英国校招取消对应届生2:1成绩要求！
据英媒最新消息，英国最大的应届生雇主之一，普华永道宣布，取消对应届生2:1学位的成绩要求，2:2学位的同学在申请中多了一个机会。 图源：PWC 这意味着啥？代表说 2.2 学位的同学们在申请路上又多了一个选择啦！...
CIE A Level Maths: Mechanics复习笔记3.3.1 Resolving Forces & Inclined Planes
Resolving Forces If a single force is applied at an angle to the direction of motion it will need to be resolved into components of the force that act perpendicular to each other. Why resolve a for...
CIE A Level Maths: Mechanics复习笔记3.2.4 Connected Bodies - Pulleys
Connected Bodies - Pulleys What is a pulley (or peg)? A pulley is a wheel like device that rotates as a string passes over it allowing motion of any particles attached to the string The term ‘strin...
