Electromagnet

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.

Electromagnets do NOT have a north and south pole.

• True

• False

Tags

NGSS.MS-PS2-5

Electricity is needed for electromagnets.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

Tags

NGSS.MS-PS2-5

What type of magnet that can turned on and off?

• electromagnet

• permanent magnet

• electricity

• battery

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

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 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-PS2-3

What must the student do in the picture, in order to induce electricity and move the the galvonometer

• nothing

• move the magnet

• add more loops of wire

• unplug the galvnonmeter

Tags

NGSS.HS-PS2-5