Forces and motion dual award 0.0 / 5 ? PhysicsForces and MotionIGCSEEdexcel Created by: Olivia BoylanCreated on: 27-11-18 17:43 what is speed how fast your going and is measured in m/s, km/h or mph 1 of 23 what is velocity how fast your going and the direction your going in and is measured in m/s, km/h or mph 2 of 23 equation for speed average speed = distance moved / time taken 3 of 23 what is acceleration how quickly the velocity is changing and is measured in m/s² 4 of 23 equation for acceleration acceleration = (final velocity - initial velocity) / time taken 5 of 23 equation for velocity velocity² = invital velocity² = 2 X acceleration X XXXXXXXXXX 6 of 23 equation for final speed (final speed)² = (initial speed)² + 2 X acceleration X distance moved 7 of 23 what is gravity the force of attraction between all masses 8 of 23 what three effects does gravity have it makes all things accelerate towards the ground. It gives everything a weight. It keeps pants, moons and satellites in their orbits. 9 of 23 what is mass the amount of 'stuff' in an object 10 of 23 what is weight the force of gravity pulling it towards the centre of the earth 11 of 23 what will differ if it is on the earth or moon an object will have the same mass wether its on the earth or moon, but its weight will be different 12 of 23 what is weight measured in newtons. It's measured using a newton meter 13 of 23 what is mass measured in kilograms with a mass balance 14 of 23 weight equation weight = mass X gravitational field strength 15 of 23 what is a force a push or pull 16 of 23 how does gravity or weight act straight downwards 17 of 23 how does a reaction force act acts perpendicular yo s surface and away from it (so if the surface is horizontal, the reaction force acts straight upwards) 18 of 23 how does electrostatic force act between two charged objects 19 of 23 how does thrust act pushes or pulls 20 of 23 how does drag, air resistance or friction act slows things down 21 of 23 how does lift act due to an aeroplane wing 22 of 23 how does tension act in a robe or cable 23 of 23
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