Velocity-Time Graphs What is a velocity-time graph? Velocity- time?graphs show the?velocity?of an object as it moves in a?straight line They show?velocity?(on the vertical axis) against?time?(on th...
Displacement-Time Graphs What is a displacement-time graph? Displacement-time?graphs show the?displacement?of an object from a?fixed origin?as it moves in a?straight line They show?displacement?(on...
Working with Vectors Vectors?are used throughout mechanics to describe forces and motion ?How are Vectors used in Mechanics? Vector?questions are often embedded in a Mechanics context Vectors will ...
Modelling Assumptions What is modelling in Mechanics? Mechanics uses?modelling?to solve problems in real life situations We use?assumptions?to simplify real life problems in order to turn them into...
Types of Force What is a force? A force is a?vector?quantity, it has both?magnitude?and?direction A force is a push or a pull on an object A force is measured in?Newtons In A level mathematical mod...
Derived Units What are derived units? Derived units for quantities such as velocity, acceleration and force etc. are combinations of S.I. units Speed?or?Velocity?= distance ÷ time?=?m/s or m s-1?(V...
Fundamental Units What are fundamental units? Fundamental units?or?S.I. units?are the international standardised units used around the world The three main units you will be using are: Length?measu...
Scalars & Vectors Mechanics uses a variety of different scalar and vector quantities. What are scalars? Scalars?are quantities without direction, they only have a?size (magnitude) e.g. a?speed?...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：3.1.5 Electromagnetic (EM) Waves Properties of EM Waves Electromagnetic waves are defined as: Transverse waves that transfer energy fro...
