Environ Scie ch21/22
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| material that allows electrons to flow through it easily | conductor
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| circuit with only one path | series circuit
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| accumulation of electric charges on an object | static electricity
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| device that detects electric charges | isotope
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| tendency of a material to oppose electron flow | resistance
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| material that does not allow electricity to flow through it | insulator
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| circuit with more than one path | parallel circuit
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| voltage | electric power
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| area around electrons that exerts force | electric field
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| pointed metal rod that directs lightning to earth | lightning rod
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| flashlight battery | dry cell
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| current is equal to a potential difference of a current divided by its distance | Ohm's law
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| connected metal plates in a conducting solution | wet cell
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| flow of electrons through a conductor | current
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| closed path through which electrons flow | circuit
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| unit of electric energy | kilowatt hour
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| rate at which electric energy is changed to another energy form | potential difference
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| the opposite ends of a magnet | magnetic pulse
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| a device used to measure electric current | ammeter
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| a device used to measure the potential difference of a circuit | voltmeter
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| a device used to increase or decrease the voltage of a power line | transformer
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| a material that does not have any resistance to the flow of electrons | super conductor
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| current that flows in only one direction through a wire | direct current
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| area around a magnetic where the magnetic forces act is | magnetic field
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| when current in a circuit reveals its direction in a pattern | alternating current
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| the property of matter in which there is a force of attraction or repulsion between unlike or like pulse | magnetism
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| groups of aligned atoms in a magnet | magnetic domains
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| when a current is passed through a current of wire | electromagnetic
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| a device that changes electrical energy to mechanical energy | electric motor
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| a device that produces an electric current by rotating loop of wire in a magnetic field | generator
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| the process by which moving a wire through a magnetic field produces an electric current | electromagnetic induction
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| superconducting trains would not lose ____ to the environment | energy
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
gcowing
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