Forces and their effects 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: courtneyxxcmsCreated on: 03-01-17 14:27 Force This can change the motion of an object (in newtons, N) 1 of 13 Drag Force A force opposing the motion of an object due to fluid (e.g. air) flowing past the object as it moves. 2 of 13 Breaking Distance The distance travelled by a vehicle during the time its' brakes act. 3 of 13 Mass The quantity of matter in an object; a measure of the difficulty of changing the motion of an object (in kilograms, kg) 4 of 13 Resultant Force The combined effect of the forces acting on an object. 5 of 13 Stopping Distance Thinking distance + braking distance. 6 of 13 Thinking Distance The distance travelled by the vehicle in the time it takes the driver to react 7 of 13 Terminal Velocity The velocity reached by an object when the drag force on it is equal and opposite to the force making it move. 8 of 13 Weight The force of gravity on an object (in newtons, N). 9 of 13 Limit of proportionality The limit for Hooke's law applied to the extension of a stretched spring. 10 of 13 Hooke's law The extension of a spring is directly proportional to the force applied, provided its limit of proportionality is not exceeded. 11 of 13 Elastic A material that it is able to regain its shape after it has been squashed or stretched. 12 of 13 Gravitational Field Strength, g The force of gravity on an object of mass 1 kg (in newtons per kilogram, N/kg). 13 of 13
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