Can someone help me with Edge circuit design virtual lab for physics?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

An atom that has gained or lost electrons is called an _

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?