The second visit to the Great Hall of Science / Day 7

Tjenna ööööh lr ngt,

Friday was our second visit to Vetenskapens Hus and this time the focus was energy; potential, kinetic and the law of conservation of energy. The day begun with an experiment using a plastic ball which was shot out of a complicated machine with a spring. The initial speed of the ball was measured with photogates, and the maximum height was measured on a measuring tape. The ball was weighted and its initial kinetic energy was calculated and compared to the maximum potential energy. We found that some energy was lost by the aerodynamic resistance.

Then we moved on to the awesome lasercave, where we looked at lasers, uv-light, mirrors and alfa- beta- and gammaemissions in a fog chamber.

The last thing was learning about solar power, fuel cells, steam engines and the sterling motor. We also had a race between the different kinds of engines, the steam engine was the most fun :-D!

See you when we see you,
The Alchemists