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What Our Lives Would Be Like without Magnets. Their influence in our lives and the world. What is a magnet?. A material or object that produces a magnet field is due to the motion of electric charge - PowerPoint PPT Presentation
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What Our Lives Would Be Like without Magnets
What Our Lives Would Be Like without Magnets
Their influence in our lives and the world
Their influence in our lives and the world
What is a magnet?What is a magnet?
A material or object that produces a magnet field
is due to the motion of electric charge
Plate tectonics explain the large scale motions of the Earth's lithosphere, causing magnetic rocks to exist.
A material or object that produces a magnet field
is due to the motion of electric charge
Plate tectonics explain the large scale motions of the Earth's lithosphere, causing magnetic rocks to exist.
What do you know about magnets?
What do you know about magnets?
Use in everyday life Attract objects Most have two poles Have a space around
them called magnetic field
Use in everyday life Attract objects Most have two poles Have a space around
them called magnetic field
Where do they come from?Where do they come from?
Nature Man-made
Nature Man-made
Things that need magnetsThings that need magnets
Headphones Stereo speakers Computer Telephone receivers Phone ringers Doorbell ringers Seal around refrigerator
doors Credit card magnetic strip
Headphones Stereo speakers Computer Telephone receivers Phone ringers Doorbell ringers Seal around refrigerator
doors Credit card magnetic strip
Television coils Computer hard drive CD and DVD spinner Dishwashers Refrigerators Fans Cell phones Starter motor of cars And many more
Television coils Computer hard drive CD and DVD spinner Dishwashers Refrigerators Fans Cell phones Starter motor of cars And many more
Types of MagnetsTypes of Magnets
Magnetic metallic elements (more common): Iron ores, cobalt, and nickel
Composites (common): Powder iron and ceramic Aluminum and other
materials Resin and magnetic powder
Others
Magnetic metallic elements (more common): Iron ores, cobalt, and nickel
Composites (common): Powder iron and ceramic Aluminum and other
materials Resin and magnetic powder
Others
What do you want to know about magnets?
What do you want to know about magnets?
Think about magnets Develop an idea Write down questions Make list Discuss ideas with
partner Present to class
Think about magnets Develop an idea Write down questions Make list Discuss ideas with
partner Present to class
Where to learn about magnetsWhere to learn about magnets
In books On the web Manipulating magnets Thinking about things
that require magnets Searching for objects
that need magnets
In books On the web Manipulating magnets Thinking about things
that require magnets Searching for objects
that need magnets
Where do we go from here?Where do we go from here?
Make our own magnets Develop activities involving magnets Educate friends Discuss about the world in relation to magnets
Make our own magnets Develop activities involving magnets Educate friends Discuss about the world in relation to magnets
Bibliography;Bibliography;
NASA’s KSNN - why do magnets work: http://ksnn.larc.nasa.gov/k2/videos/s_magnetsWork_H.html
ISIS Data Analysis: http://www.isis.rl.ac.uk/DataAnalysis/e-science/2004_povs/2004_povs.html
Wikipedia: http://en.wikipedia.org/wiki/Magnet KidsKonnect:
http://www.kidskonnect.com/content/view/90/27/
NASA’s KSNN - why do magnets work: http://ksnn.larc.nasa.gov/k2/videos/s_magnetsWork_H.html
ISIS Data Analysis: http://www.isis.rl.ac.uk/DataAnalysis/e-science/2004_povs/2004_povs.html
Wikipedia: http://en.wikipedia.org/wiki/Magnet KidsKonnect:
http://www.kidskonnect.com/content/view/90/27/
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