Magnetism

Earth acts like a giant magnet because its center is made up MOSTLY of

• granite

• limestone

• iron

• nickel

Magnetism is generated by moving

• protons.

• electrons.

• neutrons.

• elements.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The two poles on a magnet are

• north and east

• north and west

• south and north

• south and west

Which is not a property of all magnets?

• Has a magnetic field

• exerts forces

• has 2 magnetic poles

• has 2 geographic ples

Inside of magnets there are tiny magnets called _______

• atoms

• domains

• mini magnets

This type of magnet is DIFFICULT to magnetize

• temporary

• permanent

Magnetic NORTH is actually geographic _________

• SOUTH

• NORTH

• EAST

• WEST

What is the primary cause of Earth's magnetic field?

• The rotation of Earth

• The movement of molten iron in Earth's outer core

• The gravitational pull of the Moon

• The presence of magnetic minerals in Earth's crust

Which of the following materials is NOT typically magnetic?

• Iron

• Nickel

• Cobalt

• Aluminum

Tags

NGSS.MS-PS2-3

What happens when you cut a bar magnet in half?

• Each half becomes a separate magnet with a north and south pole

• One half becomes a north pole and the other a south pole

• The magnetic properties are lost

• The magnetism is doubled