A-Level Maths: Mechanics

A-Level Maths: Mechanics mechanics book 1 chapter 8 why are mathematical models constructed? to simulate real-life situations mechanics book 1 chapter 8 what are modelling assumptions used for? to simplifiy calculations Brainpower Read More mechanics book 1 chapter 8 what SI units are used for mass? measuered in: kilograms symbol: kg mechanics book 1 chapter 8 what SI units are used for length/ displacement? measured in: metres symbol: m mechanics book 1 chapter 8 what SI units are used for time? measured in: seconds symbol: s mechanics book 1 chapter 8 what do vector quantities have? both magnitude + direction mechanics book 1 chapter 8 what do scalar quantities have? magnitude only mechanics book 1 chapter 8 what's distance? magnitude of displacement vector mechanics book 1 chapter 8 what's speed? magnitude of velocity vector mechanics book 1 chapter 9 what's velocity? rate of change of displacement mechanics book 1 chapter 9 what do gradients represent on displacement-time graphs? velocity mechanics book 1 chapter 9 what do straight lines mean on displacement-time graphs? constant velocity mechanics book 1 chapter 9 what formula is used to calculate average velocity? displacement from starting point/ time taken mechanics book 1 chapter 9 what formula is used to calculate average speed? total distance travelled/ time taken mechanics book 1 chapter 9 what's acceleration? rate of change of velocity mechanics book 1 chapter 9 what do gradients represent on velocity-time graphs? acceleration mechanics book 1 chapter 9 what do straight lines mean on velocity-time graphs? constant acceleration mechanics book 1 chapter 9 what does area under velocity-time graph represent?