Generators/Motors

Electricity is the flow of _________.

• Protons
• Neutrons
• Electrons

Tags

NGSS.HS-PS2-5

If I were to try to connect the north pole of one magnet to the south pole of another magnet, the two poles would:

• attract
• repel
• neither
• flip

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

Tags

NGSS.MS-PS2-3

Which of the following is NOT part of an electromagnet?

• Wire
• Iron
• Toothpick
• Power source

In an electric motor, the energy transformation begins as  ----

• electrical and becomes chemical
• mechanical and becomes electrical
• electrical and becomes mechanical
• mechanical and becomes chemical

Tags

NGSS.HS-PS3-3

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

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

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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

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

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.

• Wind
• Water
• Magnets
• Circuits

Tags

NGSS.HS-PS2-5

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

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5