Chapter 7 vocab
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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| Acetate | A type of plastic used in photogenic film and overhead transparencies
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| Action-at-a-distance forces | Forces that can have an effect on an object without touching it
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| Charging by conduction | Process of transferring charge between objects by touching or rubbing
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| Charging by induction | Process of rearranging electrons on a neutral object by bringing a charged object close to it
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| Conductors | Materials that allow electrons to move freely on and through them
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| Contact forces | Forces that have an effect only on objects that they touch
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| Coulomb | The unit of electric charge, named after the French physicist Charles Coulomb; one coulomb is the amount of charge passing a point in one second when one ampere of current is flowing
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| Electric force | A push or pull between charged objects
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| Electrons | Negatively charges particles surrounding the atomic nucleus
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| Force | A push or a pull exerted on an object
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| Grounding | Connecting a conductor so that electric charge flows into Earth's surface
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| Insulators | Materials such as glass, plastics, ceramics, and dry wood that do not allow electrons to move easily on or through them
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| Laws of static charge | Physical laws that state that like charges repel, opposite charges attract, and neutral objects and charged objects attract eachother
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| Static charge | An electric charge that can be collected and held very nearly fixed in one place
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| Van de Graaff generator | A device that uses friction to produce a large static charge on a metal dome
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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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