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Electrostatics Final
Physics Final Review
| Question | Answer |
|---|---|
| What charge do electrons have? | Negative |
| What charge do protons have? | Positive |
| What charge do neutrons have? | Neutral |
| What is the unit for a charge? | Coulomb |
| How do particles of the same charge react with each other? | Repel |
| How do particles of different charges react with each other? | Attract |
| How do you figure out the overall charge of an object? | Add the number of positive and negative charges together |
| Define friction | When two materials rub against each other, electrons can be rubbed off of their atoms |
| What is the Law of Conservation of a Charge? | Charge is neither created nor destroyed |
| What is a conductor's purpose? | Allow charges to flow freely |
| Valence electrons form a "sea of electrons" | Conductor |
| What is a insulator's purpose? | Restrict the flow of charges |
| Valence electrons are tightly bound | Insulator |
| How does conduction occur? | When a charged body touches another neutral or charged one, charges transfer by direct contact |
| What happens when two conductors touch? | Their electrons move freely between the objects until they are evenly distributed |
| What is it called when charge distributions have equaled out between conductors? | Electrostatic Equilibrium |
| Where do charges usually want to go? | Where they can spread out the most |
| Define induction | When a neutral body is charged by bringing a charged object close to the object, but not in direct contact |
| Define dipole | Polar molecules have a positive and a negative side |
| How do dipoles become polarized? | Bringing a charged object nearby |
| How is electricity different from gravity? | Gravity can only attract |
| Who do electric fields describe? | The pulling or pushing of force in a space between charges |
| Charges in an electric field have what type of energy? | Electric Potential Energy |
| As like charges repel, the electric potential energy converts into what? | Kinetic Energy |
| Work is stored as what? | Electric potential energy |
| Define polarization | The separation of the center of positive charge and the center of negative charge in a material |
| Define coulombs law | The force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them |
Created by:
nynystylz
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