Using physics to make things work 0.0 / 5 ? PhysicsForces and MotionGCSEAQA Created by: Pea_emmaCreated on: 09-04-13 12:12 The point at which an object's mass is apparently concentrated Centre of mass 1 of 11 The number of cycles or oscillations that occur in one second; measured in Hertz (Hz) Frequency 2 of 11 A turning force; the product of the force and the perpendicular distance from the force to the pivot point Moment 3 of 11 A simple device that provides mechanical advantage of movement Lever 4 of 11 When the total clockwise motion and total anticlockwise motion of an object are equal Law of moments 5 of 11 Force per unit area; P = F / A; Units of pascals (Pa) Pressure 6 of 11 Applied to liquids and fluids where the internal forces are the same throughout the substance Incompressible 7 of 11 Mechanical systems involving the use of incompressible liquids or fluids Hydraulics 8 of 11 The external force required to make an object follow a circular path at a constant speed Centripetal force 9 of 11 A resistive force acting between two surfaces Friction 10 of 11 A resistive force in a wire or string Tension 11 of 11
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