Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Environ Scie ch21/22
| Term | Definition |
|---|---|
| material that allows electrons to flow through it easily | conductor |
| circuit with only one path | series circuit |
| accumulation of electric charges on an object | static electricity |
| device that detects electric charges | isotope |
| tendency of a material to oppose electron flow | resistance |
| material that does not allow electricity to flow through it | insulator |
| circuit with more than one path | parallel circuit |
| voltage | electric power |
| area around electrons that exerts force | electric field |
| pointed metal rod that directs lightning to earth | lightning rod |
| flashlight battery | dry cell |
| current is equal to a potential difference of a current divided by its distance | Ohm's law |
| connected metal plates in a conducting solution | wet cell |
| flow of electrons through a conductor | current |
| closed path through which electrons flow | circuit |
| unit of electric energy | kilowatt hour |
| rate at which electric energy is changed to another energy form | potential difference |
| the opposite ends of a magnet | magnetic pulse |
| a device used to measure electric current | ammeter |
| a device used to measure the potential difference of a circuit | voltmeter |
| a device used to increase or decrease the voltage of a power line | transformer |
| a material that does not have any resistance to the flow of electrons | super conductor |
| current that flows in only one direction through a wire | direct current |
| area around a magnetic where the magnetic forces act is | magnetic field |
| when current in a circuit reveals its direction in a pattern | alternating current |
| the property of matter in which there is a force of attraction or repulsion between unlike or like pulse | magnetism |
| groups of aligned atoms in a magnet | magnetic domains |
| when a current is passed through a current of wire | electromagnetic |
| a device that changes electrical energy to mechanical energy | electric motor |
| a device that produces an electric current by rotating loop of wire in a magnetic field | generator |
| the process by which moving a wire through a magnetic field produces an electric current | electromagnetic induction |
| superconducting trains would not lose ____ to the environment | energy |
Created by:
gcowing
Popular Science sets