Inertial Mass - A measure of how hard it is to change an object’s velocity; equal to the ratio of force to acceleration., Resultant Moment - The single moment that has the same effect as the sum of all other clockwise and anticlockwise moments acting on an object., Limit of Proportionality - The point beyond which the extension of an object is no longer directly proportional to the force applied., Centripetal Force - The resultant force that acts towards the centre of the circular path of an object in circular motion., Plastic Deformation - A permanent change in shape when the object does not return to its original form after the deforming force is removed., Gravitational Field - A region where a mass will experience a non-contact gravitational force., Electric Field - A region where a charge will experience a non-contact electrostatic force., Force Field - A region where an object experiences a non-contact force., Principle of Moments - In equilibrium, the sum of clockwise moments equals the sum of anticlockwise moments about the same point., Hooke’s Law - Extension is directly proportional to force, up to the limit of proportionality, Free Body Diagram - A diagram showing all the forces acting on a single object, without any other objects shown.,

GCSE Physics: Forces

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