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MVMS Electricity and
MVMS Electricity and Magnetism
| Question | Answer |
|---|---|
| Magnet | An object that attracts anything made of iron, cobalt and nickel. |
| Repel | To drive away or force backwards |
| Attract | To cause to come near |
| Magnetic Force | The force of attraction or repulsion between poles of a magnet |
| Magnetic Field | The area around a magnet |
| Magnetosphere | The earth’s magnetic field |
| Electric Current | The flow of electrons |
| Electromagnet | Is a temporary strong electrically charged magnet. When current is removed the electromagnet no longer attracts. |
| Generator | Converts mechanical energy to electrical energy |
| Motor | Converts electrical energy to create movement (mechanical energy) |
| Amperes (Amps) | The measure of the flow of electrons |
| Ammeter | The instrument that measures electrical current |
| Voltage | Measures how much electric potential energy an electron can gain, the “push power” |
| Battery | Converts chemical energy into electrical energy |
| Resistance | Is the measurement of how difficult it is for electrons to flow through material |
| Ohms | The unit of measurement for resistance |
| Electron | The negatively charge part of an atom |
| Conservation of Charge | Charges can be transferred but never created or destroyed |
| Negative charge | A result of gaining electrons |
| Positive charge | A result of losing electrons |
| Neutral charge | Having equal number of electrons and protons |
| Static Electricity | An imbalance of electrons on an object |
| Electric Field | The area or field around a charge that causes other electric charges to be attracted or repelled |
| Conductors | Material in which electrons are able to move through easily |
| Insulators | Material in which electrons are NOT able to move through easily |
| Static Discharge | Is the rapid movement of an excess charge from one place to another |
| Grounding | Is the process of providing a pathway to drain the excess charge into the earth |
| Series Circuit | Has only ONE PATH for electrical current to flow |
| Parallel Circuit | Has more than one path for electrical current to flow |
| Fuse | A mini circuit that contains a small piece of metal that melts if the current becomes too high. When the metal melts the circuit is broken, stopping the flow of current through the overloaded circuit. |
| Breaker | contains a piece of metal that bends when the current in it is so large that it gets hot. The bending causes a switch to flip and open the circuit, stopping the flow of current. |
| Electric Power | The rate at which an appliance converts electrical energy to another form of energy. |
Created by:
bonniehodder
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