 The aim here is to discuss concepts featuring in physics, such as motion, change, velocity, intension and remission of forms, maxima and minima, time, etc. Examples of sophismata in this domain are sentences containing the syncategoremata ‘begins’ and ‘ceases’: ‘Socrates ceases to be not ceasing to be’, ‘Nothing is true except in this instant’, and ‘What begins to be ceases to be’. But, as seen above with the sophisma ‘The infinite are finite’, problems like these are treated as logical and conceptual problems. This logico-semantical approach to physical problems is characteristic of medieval natural philosophy and should be kept in mind when we wonder to what extent medieval physics can be considered a precursor to modern physics. 