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1PElectricity Review
Terms for 1P Electricity
| Question | Answer |
|---|---|
| Like charges | Charges that will repel |
| Unlike charge | Charges that will attract |
| Static electricity | The buildup of charges on an object which do not flow |
| Friction | The transfer of electrons from one object to another by rubbing |
| Conduction | The tranfer of electrons from one object to another by direct contact |
| Law of conservation of charge | Electrons are not created or destroyed they are only transferred from one location to another |
| Static cling | Static electricity that causes clothes to stick together and is what enables plastic wrap to cling |
| Static discharge | The loss of static electricity as electric charges move off an object |
| Lightning | a discharge of static electricity between clouds and the earth |
| Pith Ball | A device used to detect static charge |
| Potential difference | The difference in electrical potential between two places which pushes charge through a circuit |
| Voltage | Another name for the potential difference, measured by a voltmeter |
| Volt | The unit of measure for the potential difference |
| Batteries and generators | Voltage sources |
| Resistance | The opposition to the movement of electric charges flowing through a material |
| Ammeter | An instrument used to measure current |
| Amps | The unit used to measure current |
| Ohm's Law | The resistance is equal to the voltage divided by the current |
| Series circuit | An electric circuit with a single path |
| Parallel circuit | An electric circuit with multiple paths |
| Short circuit | A connection that allows current to take an unintended path. |
| Conductor | A material through which electrons move freely, forming an electric current |
| Electric circuit | A complete path through which electric charges can flow |
| Electric current | The flow of electric charges through a material |
| Grounded | Allowing charges to flow directly from the circuit to the ground connection |
| Insulator | A material through which the charges of an electric current are not able to move |
| Third prong | Part of a plug which connects the metal shell of an appliance to the safety grounding wire of a building |
| wet cell | An electrochemical cell in which the electrolyte is a liquid |
| dry cell | An electrochemical cell in which the electrolyte is a paste |
| Van de Graaff generator | a device which produces static electricity using a rubberband like belt |
| Lightning rod | A metal rod mounted on the roof of a building in order to protect a building |
| Fuse/ circuit breaker | Devices added to a circuit to prevent overheating |
| Ohm | The unit of measure for resistance |
| electricity | form of energy which can travel along conductors |
| charged particles | paraticles that carry electricity |
| matter | either solid, liquid or gas, that which has mass and occupies space |
| atoms | extremely small particles which all matter is made up of |
| electrons | negatively charged particles which orbit the nucleus of an atom |
| neutrons | neutrally charged paricles which are contained in the nucleus of the atom |
| protons | positively charged particles which are contained in the nucleus of the atom |
| nucleus | central core of an atom containing protons and neutrons |
| conductors | objects that electricity is allowed to pass through |
| insulators | objects that do not allow electrons to travel thourh |
| negatively charged | objects that have gained electrons making them... _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
| positively charged | objects that have lost electrons making them _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
| circuit | complete conducting loop where all components are linked together |
| free electrons | electrons which are able to to transfer through a substance |
| circuit diagram | simple way of drawing electrical circuits |
| terminal | point of attachment for wires to a battery or meter |
| current | the flow of electrons around a conducting circuit |
| energy supplier | an object such as a battery, power pack or the wall socket w_ _ _ s _ _ _ _ _ _ _ |
| components | objects which are part of an electrical circuit, lanp, battery, resistor etc |
| energy user | object which converts electrical energy into other forms e _ _ _ _ _ u _ _ _ |
| alternating current | AC current that keeps changing direction |
| direct current | DC current which travels in one direction only |
| voltage gain/loss | the loss or gain of energy by the current v_ _ _ _ _ g_ _ _ /l _ _ _ |
| volt | unit of voltage gain or loss |
| ammeter | meter used to measure the size of a current |
| voltmeter | meter used to measure the gain or loss of _ _ _ _ _ _ _ |
| fuse | a thin wire which melts if the current is too large |
| resistance | property which makes it hard for electrons to pass _ _ _ _ _ _ _ _ _ _ |
| resistor | a component used to limit the current in a branch/part of a circuit |
| voltage | energy gained or lost by the circuit |
| power | total amount of energy supplied or used per second |
| watt | unit of power |
Created by:
mrohrling
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