vocab 17&18
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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| law of electric charges | the law that states that like charges repel and opposite charges attract
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| electric force | the force of attraction or repulsion on a charged particle that is due to an electric field
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| electrical conductor | a material in which charges can move freely
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| electrical insulator | a material in which charges cannot move freely
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| static electricity | electric charge at rest; generally produced by friction or induction
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| electric discharge | the release of electricity stored in a source
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| electric current | the rate at which charges pass through a given point; measured in amperes
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| voltage | the potential difference between two points; measured in volts
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| resistance | in physical science, the opposition presented to the current by a material or device
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| cell | in physics, in electricity, a device that produces an electric current by converting chemical or radiant energy into electrical energy
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| thermocouple | a device that converts thermal energy into electrical energy
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| photocouple | a device that converts light energy into electrical energy
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| electric power | the rate at which electrical energy is converted into other forms of energy
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| series circuit | a circuit in which the parts are joined one after another such that the current in each part is the same
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| parallel circuit | a circuit in which the parts are joined in branches such that the potential difference across each part is the same
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| magnet | any material that attracts iron or materials containing iron
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| magnetic pole | one of two points, such as the ends of a magnet, that have opposing magnetic qualities
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| magnetic force | the force of attraction or repulsion generated by moving or spinning electric charges
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| electromagneticism | the interaction between electricity and magnetism
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| solenoid | a coil of wire with an electric current in it
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| electromagnet | a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil
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| electric motor | a device that converts electrical energy into mechanical energy
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| electromagnetic induction | the process of creating a current in a circuit by changing a magnetic field
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| electric generator | a device that converts mechanical energy into electrical energy
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| transformer | a device that increases or decreases the voltage of alternating current
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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.
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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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