The trick with aluminum is that although it’s non-magnetic, it’s fairly easy to induce eddy currents in it. Basically, the pulsing current in the coils creates a changing magnetic field that ...
It is also grade school science to show that neither an electromagnet nor a permanent magnet will pick up nonferrous items like copper or aluminum. While technically not an electromagnet ...
Steel contains iron, so a steel paperclip will be attracted to a magnet too. Most other metals, for example aluminium, copper and gold, are NOT magnetic.
Watch this video about the metals that magnets are attracted to. Have a think about which objects should be made from magnetic metals and which objects should not. Two metals that aren't magnetic ...