scalar - Has magnitude and no direction e.g speed, vector - Has magnitude and direction e.g. velocity, resultant - Overall force when forces are unbalanced, contact - Frictional forces e.g. air resistance,, noncontact  - Forces that use a force field e.g. magnetic, gravitational, speed - How fast something travels, velocity - speed in a given direction, distance - How many meters an object has travelled, displacement - How far the object has moved since the start of the journey, first - Which Newton law states: 'An external force is needed to make an object move or change speed', F=ma - Newton's second law, third - Which Newton law states: 'For every action there is an equal and opposite reaction', thinking - Distance travelled before the break is applied, breaking - Distance travelled after the break is used before the car stops, stopping - thinking distance + breaking distance, terminalvelocity - When a falling object falls at a constant speed it has reached...,

forces KS4 definitions

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