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electricity
8th grade- electricity and magnetism vocabulary
| Term | Definition |
|---|---|
| current electricity | the flow of electrons through an electrical curcuit can only flow through a closed or complete circuit |
| conductor | materials whose electrons are loosely bound to their atoms |
| insulator | materials whose electrons are tightly bound to their atoms |
| simple curcuit | a circuit that has one path and one resistor |
| series circuit | a circuit with one path with multiple resistors |
| parallel circuit | a circuit containing multiple paths with multiple resistors |
| Ohm's law | is used to show the relationship between voltage, current, and resistance (V/IR) |
| current | (I) electrical speed measures in AMPs |
| voltage | (V) potential difference measures in Volts |
| resistance | (R)opposition to movement of charges when energy is lost another form (examples heat, light, sound mechanical) measured in Ohms |
| static electricity | is caused by a build up of electric charges of one place |
| electron | have a negative charge and can by gained or lost |
| static discharge | the loss of static electricity as charges move off an object. a spark that occurs across a gap |
| lightning | transferring electrons move from areas of negative charge (lower in cloud) to area of positive charge (the ground) |
| friction | transferring electrons from one object to another by rubbing |
| conduction | transferring electrons from one object to another by direct contact. |
| induction | movement of electrons to one part of an object by using the electric field of another |
| lightning rod | grounds excess electricity by touching a ground wire |
| fuse | breaks the circuit to stop the flow of electricity by melting the fliament |
| circuit breaker | breaks the circuit to stop the flow of electricity by flipping the switch |
| third prong | ground excess electricity by touching the ground wire |
| source | of electrical energy (example battery, generator, solar panel...) |
| resistor | a device that converts electrical energy (such as light blub, alarm) |
| switch | used to open and closed a circuit |
| magnetism | a property of latter in which there is an attraction due to UNLIKE poles |
| Induced magnets | gains magnetic properties in the presence of other magnets. Example paperclips |
| permanent magnets | material that keeps its magnetic properties. Example bar magnet |
| electromagnet | a magnet that is made through the use of an electric current. |
Created by:
lockwoodscience
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