# McAuley p2 Physics.csv

 The flashcards below were created by user McAuley on FreezingBlue Flashcards. What are the units of force Newtons What are the units of distance Metres What are the units of time seconds What is the unit of momentum kgm/s What is the unit of speed m/s What is the unit of acceleration m/s2 On a distance time graph what does a straight line represent? A stationary object What does the gradient on a distance time graph represent? The speed of an object How do you calculate the gradient on a graph Divide the change on the Y axis by the change on the x axis What does a horizontal line on a velocity time graph mean? Constant Speed What does a steep line on a velocity time graph show Fast acceleration The area under a velocity time graph represents Distance travelled "What is the equation involving force mass and acceleration" A car has a mass of 2000 kg and is accelerating at 4m/s2 what is the force provided by the engine? F= MA F = 2000x4 = 8000N A lorry has a mass 12000 kg and the engine provides a force of 48000N what is its acceleration? F= ma a=F/m= 48000/12000 = 4m/s2 Momentum = Mass x velocity Kinetic energy = 1/2* m * v2 Workdone = force x distance "What is the equation for force change in momentum and time " Which component is always put in parallel within the circuit? Voltmeter Which component is always put in series within the circuit? Ammeter What is DC current Direct Current - Only flows in one direction What is an AC current Alternating current - constantly reverses direction. In a plug the blue wire is Neutral In a plug the green and yellow wire is the ..? Earth Wire In a plug the brown wire is the ...? Live Wire What is the equation relating power energy and time Power = energy/time What is the equation relating power current and potential different power = current x potential difference Charge = Current x time The unit of Charge is ...? Coulombs Workdone= Force x distance AuthorMcAuley ID143104 Card SetMcAuley p2 Physics.csv DescriptionMcAuley P2 Physics Updated2012-03-22T10:36:51Z Show Answers