Magnetism

Magnetism is generated by moving

• protons.
• electrons.
• neutrons.
• elements.

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If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?

• Clockwise
• Counter-clockwise
• It will not move
• Need more information

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In un-magnetized materials the domains are __________ aligned.

• super
• slightly
• randomly
• always

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

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The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

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If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

• The magnetic field

• The electrostatic field

• The piezoelectric effect

• The chemical reaction of the magnet and the filings

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What are the microscopic regions of atoms with a commonly aligned magnetic field called?

• micromagnets

• amps

• magnetic zones

• magnetic domains

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What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

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The diagram below shows a bar magnet. Which direction best represents the direction of the needle of a compass placed at point A?

• left
• right
• up
• down