Forces 0.0 / 5 PhysicsForcesGCSEAQA Created by: laurenbendallCreated on: 11-06-18 15:44 What is Scalar? Only size; Area 1 of 34 What is Vector? Size (magnitude) & direction, face, velocity & acceleration 2 of 34 What is Contact? Touching each other, friction, upthrust, float 3 of 34 What is Non- Contact? objects don't touch, gravity, magnetism 4 of 34 What is Weight? weight(newtons) = mass (Kg) x gravity (N/KG on earth; grav =10) 5 of 34 What is Newtons? unit of force 6 of 34 What is Mass? matter with no definite shape 7 of 34 What is Gravity? Force that attracts a body towards the centre of the earth 8 of 34 What is Resultant force? Diagram, more than one force acts on an object, be seen as single force 9 of 34 What is Work done? Transferring energy to one thing to another. J= work done = force x distanced moved 10 of 34 What is Joules? Newton meters 11 of 34 What is Newtons meters? Joules 12 of 34 What is Energy transfer? Types 13 of 34 What is Elastic Deformation? Goes back to original shape 14 of 34 What is Inelastic Deformation? doesn't go back to original shape 15 of 34 What is Directly Proportional? X & Y are directly proportional if ratio YX is constant 16 of 34 What is limit proportional? expand; greatest stress applied to elastic body force 17 of 34 What is Force? Force = spring constant x extension 18 of 34 What is Distance? Length; distance travelled scalar 19 of 34 What is Displacement? Vector 20 of 34 What is Speed? Speed = distance / time 21 of 34 What is Distance Time Graph? Speed continuously changing 22 of 34 What is Acceleration? Rate of change in velocity / time 23 of 34 What is Velocity time graph? Speed in direction, velocity = displacement / time 24 of 34 What is Newtons first law? Nothing changes unless force 25 of 34 What is Newtons second law? force = mass x acceleration 26 of 34 What is Resultant force? Causes a change 27 of 34 What is Newtons 3rd law? Every force equal & opposite force 28 of 34 What is Stopping distance? stopping distance = thinking distance + breaking distance 29 of 34 What is Thinking Distance? Distance travelled during the drivers reaction time 30 of 34 What is Breaking Distance? Distance travelled under breaking force 31 of 34 What is Therminal Velocity? When an object falls through a fluid 32 of 34 What are the factors affecting breaking distance? Road conditions, snowy roads, worn tires / breaks, over/ under inflated tyres 33 of 34 What is an Elastic Object? Higher spring constant, stiffer the spring 34 of 34

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