Question

quiz today! take 5 minutes to prepare what makes up all matter in the universe? what part of an atom is able to move? how do positive and negative charges interact? how do you calculate electrostatic force?

Explanation:

1. All matter in the universe is made up of atoms. Atoms are the basic building - blocks of matter.
2. Electrons are the part of an atom that can move. They orbit the nucleus in electron shells.
3. Opposite charges attract each other, while like charges repel each other. Positive and negative charges are opposite, so they attract.
4. The electrostatic force between two charged particles is calculated using Coulomb's law: $F = k\frac{q_1q_2}{r^2}$, where $F$ is the electrostatic force, $k$ is Coulomb's constant, $q_1$ and $q_2$ are the magnitudes of the two charges, and $r$ is the distance between them.

Answer:

1. Atoms
2. Electrons
3. Opposite charges attract.
4. $F = k\frac{q_1q_2}{r^2}$