Electromagnets, motors and generators study guide

What is formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field?

• electromagnet
• generator
• magnet
• electric motor

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NGSS.MS-PS2-3

What is the device seen here?

• generator
• electric motor
• electromagnet
• magnet

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Generators are devices that convert _____ energy into _____ energy.

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

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NGSS.HS-PS3-3

Electric motors are devices that convert _____ energy into  _____ energy.

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

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NGSS.HS-PS2-5

NGSS.HS-PS3-3

NGSS.HS-PS3-5

Surrounding every magnet is a __________  __________.

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

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

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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NGSS.MS-PS2-3

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

• Motor

• Generator

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

What can you use to make an electromagnet?

• Battery, nail and string

• Battery, pencil and wire

• Wire, battery and iron core (nail)

• Peanut butter, lampshade, hand sanitizer

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

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

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

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

• Increases
• Decreases
• Stays the same
• Stops completely

Tags

NGSS.MS-PS2-3