1. The problem statement, all variables and given/known data A charged particle is moving in a uniform, constant magnetic field. Which one of the following statements concerning the magnetic force exerted on the particle is false? It changes the velocity of the particle. It increases the speed of the particle. It does not change the kinetic energy of the particle. It can act only on a particle in motion. It does no work on the particle. 2. Relevant equations Could you explain why it false? 3. The attempt at a solution I am told that the answer is the last one.