lunes, 16 de enero de 2017

A modern version of the gold foil experiment

A modern version of one of the most important experiment in the history of science.

Watch the video and answer the questions

1.- Who made this experiment more than one hundred years ago?
2.- Which kind of particles are used in this experiment?
3.- Why some of the particles pass straight ahead but others are deflected?
4.- What does 1.5 microns refers to?
5.- What does the bell sound represent?
6.- Mention two differences between the original experiment and the modern one.
7.- How many particles per second are detected by each detector?
8.- What conclusion can we make from the results of this experiment?
a) J. J. Thomson was right.
b) Atoms are mostly empty space.
c) Atoms are rigid spheres.
d) None of above.
 9.- What happen to the particles passing closer the nucleus?

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