Magnetic key. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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Magnetic key. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Using a magnet, you can make an original key for a drawer of a desk. Make a small cylindrical recess in the top board of the table, against the front wall of the box. Exactly opposite this recess, make a recess of the same diameter in the wall of the box, but not so long, but half as short. Pick up an iron rod of such a length that it fits completely into the upper recess:

Magnetic key

Being placed in the lower one, so that it protrudes from it and grabs part of the table lid, locking it:

Magnetic key

If you bring the magnet (now it will be the key) to the table top, the rod will fully enter the upper recess - and the box can be pulled out. If you take away the magnet, the rod will fall and lock the box. Of course, it is necessary that the magnet is strong enough, and the table top is thin.

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