Consider a magnetic force acting on an electric charge in a uniform magnetic field. Which of the following statements are true?
Check all that apply. The direction of the magnetic force acting on a moving electric charge in a magnetic field is perpendicular to the direction of motion. The direction of the magnetic force acting on a moving charge in a magnetic field is perpendicular to the direction of the magnetic field. A magnetic force is exerted on an electric charge moving through a uniform magnetic field. An electric charge moving parallel to a magnetic field experiences a magnetic force. A magnetic force is exerted on a stationary electric charge in a uniform magnetic field. An electric charge moving perpendicular to a magnetic field experiences a magnetic force.
Gravity always works as a pair of <em>EQUAL</em> forces ... one in each direction between two masses. Your weight on the Earth is exactly the same as the Earth's weight on you.
Answer: Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion.
