Labels:text | screenshot | font | number OCR: FORCE .............................................. FORCE ACTS TO change the velocity of an object. Isaac Newton (1642-1727) stated in his laws of motion that an object remains at rest or moves at constant speed in a straight line unless acted on by a force. He also stated that the change in velocity of an object produced by a force is directly proportional to the magnitude of the force and inversely proportional to the object's mass.