Chapter 18 test
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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| What is Aurora | An aurora is formed when charged particles from the sun hit oxygen and nitrogen atoms in the air.
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| What are the two Auroras? | Northern lights, bad southern lights.
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| What does a step down transformer? | A step-down transformer decreases voltage and increases current.
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| What is a ferromagnet? | A temporary magnet that becomes a magnet by rubbing a nail on a magnet.
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| What is an electromagnet? | the interaction between electricity and magnetism.
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| What is a permanent magnet? | Permanent magnets are difficult to magnetize. But they tend to keep their magnetic properties longer than temporary magnets do.
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| Where do you find the strongest magnetic effects on a magnet? | On both the poles.
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| What is the geographic north pole. |
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| What is the geographic south pole. | Where the magnetic force is strongest in the south.
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| What is the magnetic north pole of a magnet | Where the magnetic force strongest in the north.
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| What is the magnetic south pole of a magnet |
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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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