Edexcel A-Level Physics 2022 Paper 1 (Question Paper)

A level Physics Paper 1Speed>>> =distance / timeVelocity>>> Is a vector and therefore has both direction and magnitude.=displacement / timeAccelaration>>> =(v-u)/tWhere v is initial velocity and u is final velocityDisplacement time graph>>> upward slope - constant positive velocityflat line - stationarydownward slope - negative constant velocityIt can often be easier to just draw a distance-time graph.velocity-time graph>>> Acceleration-time graph>>> a graph describing motion of an object, with acceleration on the vertical axis and time on the horizontal axis.upward slope - increasing accelerationflat line - constant accelerationdownward slope - decreasing accelerationAdding vectors>>> Draw both vectors next to each other head to tail and then use Pythagoras and/or trig to calculate the missing side of the triangle and the angle.Remember, in order to draw these correctly, you'll probably have to move one of the vectors.Moments>>> the turning, movement of a force.=force x perpendicular distance from the pivot.Principle of moments>>> For an object that is in equilibrium:- the sum of the clockwise moments = the sum of the anticlockwise moments- There is no resultant force.Centre of gravity>>> The point where the entire weight of an object appears to act.This is essentially the same thing as the centre of massThis