Magnetic Fields & Induction

Front

Magnets have opposite poles

Back

North and South

Front

Magnets

Back

Must have a north and south pole, no single pole is possible

Front

Magnetic poles

Back

Where a magnetic field around a magnet is strongest,

Where the field lines are most dense

Front

The strength of a magnet

Back

is determined by the alignment of the domains of electron spin.

Strong magnets have domains that spin in the same direction.

Front

Electromagnetic induction

Back

When a magnetic field moves through a coil, voltage is induced.

Conversely, when a current is run through a wire, a magnetic field is induced.

Front

Coil Loops and Voltage

Back

More loops in the coil result in more volts.

Front

Speed and Voltage

Back

Moving faster results in more volts.

Front

Ammeters & Galvanometers

Back

Detect current

Front

Motors

Back

Turn electrical energy to mechanical energy

Front

Device that creates electricity from magnetism

Back

A generator