A magnet pins a note to a steel filing cabinet. Slide the same magnet onto an aluminum can and it falls straight off.
In earlier grades you met the magnetic force as an attraction between magnets and magnetic materials. In the Fields topic you sorted materials by whether a magnetic field exerts a force on them. This lesson names the short list that passes that sort.
Hold a magnet near objects around a kitchen, one at a time. A steel paperclip jumps to it. The magnet grips an iron skillet. An aluminum can does nothing. A copper wire does nothing. Glass, plastic, and wood do nothing.
Steel makes the list because it is mostly iron.
Which of these materials is attracted to a magnet?
A magnet is held against an aluminum ladder. Is there a pull between them?
A magnet is held against a pair of steel scissors. Do the magnet and the scissors attract?
Steel is one of the magnetic materials: iron, steel, nickel, and cobalt.
A magnet attracts a magnetic material.
Yes. The magnet and the steel scissors attract.
A magnet is held against a copper pipe. Do the magnet and the pipe attract?
Copper is not on the list of magnetic materials.
A magnet does not attract a material that is not magnetic.
No. The magnet does not attract the copper pipe.
Which list names only materials that a magnet attracts?
A magnet picks up exactly one of these objects. Which one?
Omar sorts cans with a magnet: one kind of can sticks to it, the other kind does not. Which pairing of can and result is correct?
Which statement about materials and magnets is correct?