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14 Cards in this Set
- Front
- Back
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What does magnetism come from? |
Minerals found in the earth |
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What is the most common mineral that forms a magnet? |
Iron |
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Name three elements that can stick to magnets |
Iron , nickel, cobalt |
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Magnetism comes from __________________ ____________________ which is called_________________ |
Moving electrons...........electricity |
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What 3 things are needed to make an Electromagnet? |
nail, wire, dry cell battery |
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The Earth is a big ________________________________. |
magnet |
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Complete the statement...."Likes ____________________ and opposites______________________." |
repel..... attract |
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How are the electrons in a frying pan different from those in a magnet? |
frying pan, moving in all directions, in a magnet, they are lined up |
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MRI stands for ____ |
Magnetic resonance imaging |
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What is formed when electricity flows? |
An electric current |
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The Earths magnetic field extends to ___________________________________. |
the Earth's inner core to where it meets the solar wind |
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The Earth's magnetic field is strongest where? |
Strongest at the poles, weakest at the equator |
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The sun's magnetic field causes ________________ ____________ |
solar winds |
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What do opposite poles in magnets do? _______________________ |
attract |
