4th grade Science Lesson 49 Study Guide
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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| An object that is able to attract iron | magnet
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| The pushing or pulling force caused by a magnet | magnetism
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| The area around a magnet where the force of a magnet can act | magnetic field
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| A temporary magnet formed when electric current flows through a wire coiled around a metal core | electromagnet
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| Produces electricity by using a coil of wire and a magnet | generator
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| The ends of a magnet are called ____________. | poles
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| Magnets have a __________ pole and a __________ pole. | north, south
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| Magnetism and ___________ are related. | electricity
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| As a ____________ flows through a circuit, it causes a magnetic field. | current
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| Electrical power plants use wind, steam, or __________ to make huge generators work. | water
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| What are two ways magnets can be used to produce electricity? | Moving a magnet through a coil of wire and Moving a magnet through magnetic field
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| Where is a magnet's magnetism the strongest? | poles
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| Name two things that are not attracted to a magnet? | Wood and paper
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| Name two things that use electromagnets. | Cd players and computers
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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:
bgpalmers
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