Electromagnetism

What Is Electromagnetism

• the interaction of electric currents or fields and magnetic fields.

• a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

• a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

• the strength and vitality required for sustained physical or mental activity.

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Which one is a Maglev Train

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What happens When the North Pole of a Magnet meets another North Pole of a Magnet

• They attract each other

• They stick together

• They repel each other

• This is Bogus

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When opposite poles meet they ...

• attract

• repel

• explode

• run away

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What can demagnetize a magnet?

• A. high altitudes
• B. high temperatures
• C. low altitudes 
• D. low temperatures

What kind of magnet can be turned on and off? (Man-made magnet)

• refrigerator magnet
• electromagnet
• magnetite
• iron

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How are electromagnets different from magnets?

• magnets can be turned on/off
• you can turn an electromagnet on/off
• magnets are more powerful
• magnets have a North and South pole

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Which device uses mechanical energy to produce electrical energy?

• Electric Motor
• Magnet
• Generator
• Solar Cell

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What is created when a magnet moves through a coil of wire?

• A. an electromagnet
• B. a ferromagnet
• C. a solenoid
• D. an electric current

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An example of a conductor is :

• a glass paperweight
• a plastic cap
• a metal screw
• a wooden handle

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