Magnetism

What happens when you split a magnet in half?

• It becomes twice as strong

• You end up with two smaller magnets

• You end up with a North Pole magnet and a South Pole Magnet (as long as you split it perfectly in half)

• Your magnet loses all of it's magnetism (it leaks out of the break)

Why does a compass align itself with Earth's North Pole?

• Because compass needles are slightly magnetized and align themselves with earth's magnetic field

• Because one of the poles of the magnet is called the North Pole, so it would only make sense that it would be on the North side

• They don't actually do this, they just align themselves with the North side of a map

• Because North is slightly downhill (as long as you are in the Northern Hemisphere) so gravity causes the compass to point North

What happens when an object with random magnetic domains is placed into a strong magnetic field?

• It is attracted to the magnetic field

• It aligns with the field and shoots off like superman

• It aligns with the field and usually becomes a temporary magnet itself

• Its domains start moving faster and it gets warmer

Tags

NGSS.MS-PS2-5

What happens magnetically when electricity runs through a wire (or any charged particle moves).

• Nothing, magnetism and electricity are separate phenomenon

• The magnetic field matches that of the Earth

• It generates a magnetic field around the wire

• It uses magnetism to move the charge through the wire

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

How can I make a permanent magnet no longer magnetic? (Select all that apply)

• Hit/Drop it repeatedly

• Put it near a tv or cell phone

• Submerge it in water for several hours

• Put it next to another magnet long term

• Heat it up

Tags

NGSS.MS-PS3-3

This is when the magnetic domains within a piece of metal (like a nail) are oriented by an electrical current, making a very strong temporary magnet. (Vocab)

• Magnetic Pole

• Dipole

• Electromagnet

• Electric Motor

• Magnetic Domain

Tags

NGSS.MS-PS2-5

These are the areas of a permanent magnet where the magnetic field is the strongest, usually one at each end of the magnet. (Vocab)

• Magnetic Pole

• Dipole

• Electromagnet

• Electric Motor

• Magnetic Domain

When there is a permanent magnet, these are the atoms with partial magnetism that are all arranged along the same direction. (Vocab)

• Magnetic Pole

• Dipole

• Electromagnet

• Electric Motor

• Magnetic Domain

This is a material in which the magnetic domains are naturally aligned and stay that way for a very long time.(Vocab)

• Gravity Wave

• Permanent Magnet

• Electromagnetic Wave

• Electromagnet

• Electric Motor

How are two ways that Earth's magnetic field is useful for us?

• It allows us to know which direction is "Down" and allows for better navigation

• It protects the surface of the earth from UV rays and causes tides

• It produces the Auroras and causes the spin of the earth

• It blocks the harmful Solar Wind and allows for more efficient navigation