The knife may be at the top. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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The knife may be at the top. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

В pencil experience the penknife was at the bottom. But he might be at the top. It is only necessary to take an even heavier object, so that the main weight is still below the fulcrum.

Very convenient for this experience is a ladle, which pours soup. She is heavier than a knife. In addition, there is a hook at the end of the handle of the ladle and it is easy to hang it.

Place a half-open penknife at the edge of the table and hang a ladle on it, as shown in the figure. After swaying several times, this structure will balance. But it is clear that without a ladle the knife would not have stood in this position for a second!

The heavier the ladle, the more evenly the knife stands. This is easy to verify by pouring sand into the ladle. The knife will rise higher!

Knife can be at the top

With a ladle and a knife, you can make an even more beautiful experience. In the picture you see how to put on the ladle at the base of the blade. The knife will have to be bent so that the ladle does not slip and sticks out at an angle of about 45 ° to the knife handle.

Knife can be at the top

Now the whole structure will be in balance if the end of the handle is supported with a finger. And you can put it on the edge of the table, even on the edge of the glass. True, the glass will have to be filled with water so that it does not tip over.

Author: Galpershtein L.Ya.

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