Experiment of December 15, 2019:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Experiment:

Question:

How high do the coins fly?

A) Both coins fly about the same height.

B) The 10 cm coin flies about twice as high as the 20 cm coin.

C) The 20 cm coin flies about twice as high as the 10 cm coin.

D) The 20 cm coin flies about four times as high as the 10 cm coin.

Advice of the day:

The "10 cm coin" is the one that is 10 cm away from the pivot point, i.e. the pen, the "20 cm coin" is 20 cm away from the pen. It does not matter which number is printed on the rule at the respective position.