Magnets

Magnets have _____ and ______ poles.

north & south

Like poles ________.

repel

Opposite poles ______.

attract

Magnets ______ transfer magnetic properties to other objects.

CAN

Magnets ______ have fields around them.

DO

TRUE OR FALSE: Electromagnets turn on and off.

TRUE

TRUE OR FALSE: Our Earth is not a magnet.

FALSE

TRUE OR FALSE: Magnetic fields are invisible.

TRUE

Which is NOT a ferromagnetic material? iron, steel, colbalt, nickel

steel

Which is the KING of ferromagnetic materials?

iron

Which physicist made significant contributions to electromagnetism?

Andre-Marie Ampere

Domain theory refers to the random ______ of electrons in each domain.

spin

Electrons spin in the ______ direction to make a magnet.

same

NO presence of magnetic material

presence of a magnet!

red bar indicates the north pole of the magnet

A coil of wire, a magnet and _______________ are needed to produce electricity

motion

A motor takes ___________ energy and coverts it to ____________ energy

electrical, mechanical

A generator takes ___________ energy and converts it to ____________ energy

mechanical, electrical