Gaining or losing can cause an atom to have an overall electric charge. a. neutrons. b. electrons. c. protons. d. nuclei (more than one nucleus)

Which changes of state do the labels represent? a: b: c:

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine