Magnets, Motors & Generators

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet
• an enemy

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What two forces are required for generators and electric motors to work? 

• magnetism and thermal 
• electricity and thermal 
• electricity and magnetism 
• magnetism and radiant 

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Electricity is the flow of _________.

• Protons
• Neutrons
• Electrons

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Generators are devices that convert _____ energy into _____ energy.

• chemical; mechanical
• mechanical; electrical
• electrical; mechanical
• potential; kinetic

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In a _______ a spinning turbine moves magnets which generates an electric current.

• Motor

• Generator

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What can you use to make an electromagnet?

• Battery, nail and string 
• Battery, pencil and wire
• Wire, battery and iron ore (nail)
• Peanut butter, lampshade, hand sanitizer

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Electric fields are often associated with what other kind of field? 

• Magnetic Fields 
• Nuclear Fields 
• Particle Fields 
• Corn Fields 

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What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field?  

• Electromagnet 
• Generator
• Electron Magnet 
• Motor

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What happens to the strength of an electromagnet as you add more coils around it?

• Increases
• Decreases
• Stays the same
• Stops completely

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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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