1. ? 2. 7 questions – to get you thinking How many poles does a magnet have? What are the magnetic metals? Why does the Earth have a magnetic field and what is it useful…

Slide 1 Slide 2  magnet – any material that attracts iron and materials that contain iron  magnetism – the attraction or repulsion of magnetic materials  Magnets…

Slide 1 Slide 2 Slide 3 Slide 4 Forces are usually divided into two types. 1.Contact forces occur because of physical contact between objects. Examples: pushing open a door…

Slide 1Magnets and the magnetic field Electric currents create magnetic fields Magnetic fields of wires, loops, and solenoids Magnetic forces on charges and currents Magnets…

Magnetism Review and tid-bits Properties of magnets A magnet has polarity - it has a north and a south pole; you cannot isolate the north or the south pole (there is no magnetic…