Magnets

The South end of a Magnet will...

• Repel to a Copper Nail

• Repel to the North End of another Magnet

• Repel to the South end of another Magnet

Tags

NGSS.MS-PS2-5

Which part of the Magnet is Strongest?

• Center

• Sides

• Poles

Tags

NGSS.MS-PS2-3

Magnets are _____ to objects that contain Iron, Nickel, Cobalt or Steel

• Attracted

• Repelled

How can a permanent magnet be demagnetized?

• Cut the magnet in half.

• Strike the magnet with a heavy blow.

• Heat the magnet up.

• both b and c

Tags

NGSS.MS-PS3-3

Why does a compass needle point in a north-south direction?

• The needle reacts to Earth
  's magnetic poles.

• The needle forms an electromaggnet with Earth's poles

• The needle is lightweitht, so it always spins south.

• The needle is pulled in the middle by Earth's power.

Made by coiling a wire around metal core and passing a current through the wire

• Electromagnet

• Iron Cores

• sink

• tub

Tags

NGSS.MS-PS2-5

has to have an electric current pass through it in order to make the magnet field?

• Temporary

• Permanent

• Neither

• Both Temporary and Permanent

Tags

NGSS.MS-PS2-3

Both types temporary and permanent have a magnetic field.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which is an example of permanent magnets?

• electromagnet

• bar magnet

• iron

Magnetic field is the same for_____________________

• Both temporary and permanent

• Permanent

• temporary

• neither