Physics

Physics:

Ideas + Brainstorm

Theme = Westlake

Water preassure? Refractive index of water? Speed of sound in water?

Surface Tension Experiment (with water striders): [] - this experiment was called off, due to the fact that we where'nt able to find any water striders in the area of the west lake that we had to sample them -

Topic: Pollution of Water Research Question: How will the refractive index of the lake water differ from that of distilled water? Is it dirty enough to see a clear difference?

Results:


 * || Angle if Indicidence ±0.5 || Angle of Refraction ±0.5 ||
 * Lake Water || 10 || 8 ||
 * || 3.5 || 3.5 ||
 * || 2 || 1.5 ||
 * || 6.5 || 6 ||
 * || 12 || 9 ||
 * Distilled Water || 13.5 || 10.5 ||
 * || 10 || 8 ||
 * || 3.5 || 3 ||
 * || 5 || 4.5 ||
 * || 7.5 || 6 ||
 * || 5 || 4.5 ||
 * || 7.5 || 6 ||

Our final results show that the refractive index of the west lake water is very similar to that of distilled water:
 * West Lake || 1.335 ||
 * Distilled || 1.347 ||
 * Known value of water || 1.33 ||