kinetic energy = energy in the form of movement, for example a spinning wheel
deceleration = reducing speed
acceleration = increasing speed
asbestos = a fibrous material derived from rock that was used as an insulating
material; it is no longer used as it damages the lungs if the fibres are inhaled
composite = combined materials, consists of a bulk material called a matrix,
reinforced with fibres or bars, for example glass-reinforced plastic = plastic
matrix with glass fibres
non-hazardous = not dangerous
exhaust = system for evacuating smoke or gases, for example from an engine