click below
click below
Normal Size Small Size show me how
Electricity
Term | Definition |
---|---|
Atom | Tiny particles that make up matter |
Proton | Particles in the nucleus of an atom that have a positive charge |
Nuetron | Particles in the nucleus of an atom that have no charge |
Electron | Tiny particles that move around the nucleus of an atom. An electron has a negative charge |
Electric Force | Push or pull between charges objects |
Attract | Pull together. Objects that have unlike charges attract |
Repel | Push apart. Objects that have like charges repel |
Electric Charge | A property of matter.( positive or negative) It can change when matter loses or gains electrons |
Electric Discharge | When a charge moves quickly from one object to another |
Friction | Rubbing together |
Static Electricity | The build up of positive or negative electrical charges on an object |
Lightning | A giant discharge of static electricity |
Electricity | A form of energy associated with the movement of electrons |
Conductor | Material through which electric current passes easily |
Conductivity | The ability to conduct electricity |
Insulator | Material through which electric current doesn't pass easily |
Electric current | A flow of electrons through a circuit |
Cell | The device in a circuit that provides the electrical energy. It could be a battery or electrical energy provide by outlets |
Load | Is the component of the cell that uses thee electrical energy. It could be anything from a light bulb to a video game |
Terminal | The place on the battery where electrons flow in and out |
Battery | Two or more primary cells connected together, usually in series, to provide |
Dry cell | A cell in which the electrolyte exists in the form of a paste, source of electric current; energy source |
Switch | Can be used to open/close a circuit |
Electric Circuit | Path electrons follow as they flow |
Open Circuit | Is one in which the pathway of the electrical current is broken |
Closed Circuit | Is one in which the pathway of the electrical current is complete and unbroken |
Series circuit | Current can travel along only one path |
Parallel Circuit | Has multiple pathways for the current to flow. If the circuit is broken the current may pass through other pathways and other devices will continue to work |
Magnet | An object that can push or pull objects made of iron, nickel, or cobalt |
Pole | Ends of a magnet where the force is the strongest |
Attract | To pull towards (attraction) |
Repel | To push away (repulsion) |
Temporary Magnet | Material that has been magnetized, but will only stay magnetized for a short period of time |
Permanent Magnet | Material that holds magnetic properties for a long time |
Magnetic Field | Space around the magnet where the force acts |
Electromagnet | A magnet made by winding a wire with a current around an iron bar. It is a temporary magnet and can be turned on and off |