Electromagnets

What are the components of the electromagnets?

• 
  battery, wire and bulb

• battery , copper wire and paper clips

• 
  battery, copper wire and iron nail

• 
  battery, wire and aluminum

What would happen if you took one end of the wire off the battery?

• 
  The nail will be a magnet.

• The nail would no longer be a magnet

• Nothing will happened.

• The nail will heats up.

Which part of the electromagnets turned into a magnet when electricity flows through a coiled wire?

• Battery

• Copper wire

• Iron Nail

• Bulb

Tags

NGSS.MS-PS2-3

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

Tags

NGSS.MS-PS2-5

How can the strength of an electromagnet be increased? (mark all that apply)

• increase the current flowing through the coil

• add an amplifier to it

• 
  increase the number of coils

• put iron core inside the coil

Surrounding every magnet is a __________  __________.

• 
  magnetic field

• 
  electrical current

• 
  another magnet

• an enemy

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• 
  wire, iron, electric

• electric, wire, iron

• 
  iron, electric, wire

• excited, hair, apple

What type of magnet that can turned on and off?

• battery

• permanent magnet

• electromagnet

• 
  electricity

What is the role of the battery in the electromagnet?

• 
  It provides light energy for the electromagnet.

• It provides magnetic field for the electromagnet.

• It provides sound energy for the electromagnet.

• It provides the power source for the electromagnet.

Tags

NGSS.MS-PS3-5

Arrows are close together on a force field when the force is

• 
  stronger

• weaker

• opposite

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5