click below
click below
Normal Size Small Size show me how
Electrostatics
| Question | Answer |
|---|---|
| Electrostatics | Electricity at rest |
| Electric Current | The motion of electric charges |
| Name two possible charges on a charged particle. | Protons, Electrons |
| Atom | smallest component of an element |
| Charging by contact | when a charged rod is placed in contact with a neutral object, some charge will transfer to the neutral object |
| Charging by induction | when you bring a charged object near a conducting surface and the particles become rearranged |
| Conductor | a device designed to transmit electricity, heat, etc. |
| Coulomb | unit of electrical charge equal to the amount of charge |
| Electrically polarized | one side of the atom is induced to be slightly more positive than the oposite |
| insulator | material with negligible, thermal, or electrical conductivity. |
| ion | particle that is electrically charged |
| Protons | positively charged |
| Electrons | negatively charged |
| An electric force can either be.. | attractive or repulsive |
| What is known about electrons? | Repels other electrons. All electrons identical. |
| Compare contrast protons and neutrons | neutron has a slightly greater mass than a proton |
| What is important about a normal atom? | There is no net charge, there are as many electrons as there are protons. |
| Which electrons are most easily lost? | the outermost electrons |
| What is an ion? | A charged atom |
| What is the conservation of charge? | electrons are not destroyed, but transfered |
| When does an object become charged? | It gains protons |
| What are two methods of charging? | Charging by friction, Charging by contact. |
| Grounding | allowing charges to move freely along a connection between a conductor and the ground(stopping the charge) |
| What is lighting? | an example of induction |
| Why are metals good conductors of heat and electricity? | It's electrons are flowing further away from the nucleus, which makes them easier to transfer |