When you hold an object with a positive electric charge near an object with a negative electric charge, it causes the negatively charged object to move. How
could you model this interaction with magnets? Describe the types of forces
involved and the energy transformations that take place. (10 points)
Remember that both magnets and electric charges involve noncontact forces
and force fields. Magnets have north and south poles. Opposite poles attract
each other, and like poles repels each other. The same is true for positive and
negative electric charges: opposite charges attract, and like charges repel.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

All motion is caused by force? true or false