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Science notes 1-4
on Electricity and Magnitism
| Question | Answer |
|---|---|
| electricity | a form of energy caused by moving electrons |
| protons | carry a positive charge |
| electrons | carry a negative charge |
| ion | an atom with a positive or negative charge |
| The Law of electric charges | like charges repel and opposite charges attract |
| static charge | the buildup of electrons on an object |
| electric discharge | the rapid movement of excess charge from one place to another |
| electric current | a flow of electrons through a conductor |
| electric circuit | a close conducting loop through electric currents continuously flow. |
| series circuit | a circuit that has only one path for the electric currents to flow |
| parallel circuit | a circuit that has more than one path for the electric current to flow |
| conductor | a material that allows electrons to move through easy |
| Insulator | a material in which electrons cannot move easily from place to place |
| voltage | the measure of how electric energy an electron in a circuit can gain from a circuit |
| what is voltage measured in | volts |
| battery | a series of electrochemical cells connected together |
| electrolyte | a substance that dissolves in water to form a conducting solution |
| direct current | a current that only flows in one direction |
| oxidation | the electric field forces the electrons to leave the negative terminal to move towards the positive battery terminal |
| ampere | a measure of the number of electrons flowing in a circuit in a given amount of time |
| resistance | opposes the flow of electrons in a circuit |
| 4 factors that effect resistance | length, width, material, and temperature |
| Ohms law | current in a wire is equal to the voltage divided by the resistance |
Created by:
rlin
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