CIE A Level Maths: Mechanics復習筆記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...
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...
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...
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 ...
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...
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...
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...
據英媒最新消息,英國最大的應屆生雇主之一,普華永道宣布,取消對應屆生2:1學位的成績要求,2:2學位的同學在申請中多了一個機會。 圖源:PWC 這意味著啥?代表說 2.2 學位的同學們在申請路上又多了一個選擇啦!...
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...
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...
Connected Bodies - The Lift Problem What is the lift problem? The?lift?problem?involves objects (particles) that are?directly?in?contact?with each other – typically a?person?or?crate?in a?lift If i...
Connected Bodies - Ropes & Tow Bars What are connected bodies/particles? The phrase?connected?particles?refers to situations where?two?(or more) bodies (objects) are connected in some way. Comm...
F = ma What is Newton’s First Law of Motion (N1L)? An object at rest will stay at rest, and an object moving with constant?velocity?will continue to move with constant velocity, unless an unbalance...
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