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ScienceElectricity
Physical Science Electricity
| Question | Answer |
|---|---|
| The accumulation of excess electric charge on an object. | Static Electricity |
| states that change can be transferred from one object to another but cannot be created or destroyed. | Law Of Coversion of Charge |
| Material such as copper and wire in which electrons can move easily. | Conductor |
| Material in which eletrons are not able to move easily. | Insulator |
| The net movement of electric charges in a single direction; measured in ampers. (A) | Electric Current |
| Related to the force that causes electric charges to flow; measures in volts. (V) | Voltage differance |
| Closed conducting loop through which an electrical current can flow. | Circuit |
| Tendancy for a material to oppose electron low and change electrical energy into thermal energy and light; measured in ohms. | Resistance |
| States that thw surrent in the circuit quals the voltge diffferance divided by the resistance. | Ohm's Law |
| Circuit in which electric current has only one path to flow. | Series Circuit |
| Circuit in which electric current had more than on path to follow. | Parallel Circuit |
| Rate at which electrical energy is converted to another form of energy; expressed in watts. (W) | Electrical Power |
| Compare and Contast Series Circuits and Parrallel Circuits. | Series Circuits: one path one loop to flow through string of lights; if one light goes out then none of the lights will work. uses open sircuits Parallel Circuit: more than one path two or more branches to flow through used in households |
| Whats the formula for Ohm's Law? | I=V/R |
| Explain how lightning forms. (step one and two) | Step One: The current from the clouds causes separation of the 2 charges. At the top of the cloud it is positive and the bottom is negative. Step Two: THe negative charges at the bottom of the cloud start to produce an electric current my induction |
| Explain how lightning forms. (step three and four) | Step Three: when the charges at the bottom cloud has enough negative charges they start to attract of postive charges this causes the eletrons in the bottom cloud to move toward the ground. Step Four: The eletrons get closer to ground they attract pos. |
| What is the point of fuse and a circuit breaker? | They are both used for safey. A fuse is used when a a circuit is overheated. A circuit breaker is used when a circuit is also overheated and also stops the current form flowing. |
Created by:
annaeg08
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