Permanent Magnets

Permanent magnets have a weaker magnetic field if

• All of its magnetic domains are aligned

• Some of its magnetic domains are not aligned.

• Its magnetic domains are aligned in opposite directions

• It has magnetic electrons in its atoms.

Tags

NGSS.MS-PS2-3

A magnet must always have two poles, even if cut in half, because

• A magnet is made up of tiny magnetic domains that are aligned.

• Each pole divides in half and the magnetic field becomes weaker.

• Magnetic domains are out of alignment.

Tags

NGSS.MS-PS2-3

Permanent magnets are made out of the following materials

• Copper, Chromium, and Cobalt

• Iron, Cobalt, and Silver

• Nickel, Cobalt, and Iron

• Copper, Nickel, and Iron

Tags

NGSS.MS-PS2-3

You can cause a permanent magnet to lose its magnetic field if

• You forcefully vibrate the object, causing its domains to fall out of alignment.

• By rubbing an iron object with a permanent magnet in the same direction repeatedly.

• You freeze the object.

• You connect the north and south poles of two magnets.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetic fields are strongest

• between the poles

• at the north pole

• at the south pole

• at both poles

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetic forces are weakest

• between the poles

• at the north pole

• at the south pole

• at both poles

Magnets are made of tiny sections of magnetic fields that are aligned to produce a larger magnetic field. These are called

• frontiers

• domains

• electromagnets

• electron shells

Tags

NGSS.MS-PS2-3

What are some examples of non-contact forces?  Check all that apply.

• Gravitational Force

• Tension Force

• Frictional Force

• Magnetic Force

• Electrostatic Force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Substances that lose electrons

• become positive

• become negative

• become neutral

Substances that gain electrons

• become positive

• become negative

• become neutral

Tags

NGSS.MS-PS2-3