In modern quantum physics, Heisenberg's uncertainty principle states that Question 10 options: a) the more precisely you know a particle's position, the more certain you are of its speed and motion. b) the more precisely you know a particle's mass, the less certain you are of its size. c) the more precisely you know a particle's position, the less certain you are of its speed and motion. d) the more precisely you know a particle's velocity, the more certain you are of its position in space