Physics lab reports Essay Example | Topics and Well Written Essays - 500 words

Physics lab reports - Essay Example This property allows the convenient computation of the density of the rock samples given that the volume of the displaced water (for instance, 10 grams of displaced water has a volume of 10 cm3) will equal the volume of the submerged object. Following the weighing of the rocks in air as well as in water, the buoyancy, volume and density of the rocks were computed. The buoyancy, which is the same as the weight of the displaced water, was taken as the difference in the weight of the rocks in air and while submerged in water. This is also equal to the volume of the rocks in cm3. The density was calculated by dividing the weight of the rocks in air by the volume of the rocks. The results of the experiment showed that rocks # 3 and 115 have densities 3.02 g/cm3 and 2.27 g/cm3, which are higher than that of water. This suggests that the rocks will be completely submerged in water. Indeed, the rocks were completed submerged in water, thus validating our results. 2. The volume will remain the same. This is because ice being less dense than water, floats in water. That is the volume of ice is greater that of water of equal mass. Thus the volume decreases when ice melts. 2. The curved canopy umbrella accelerates air flow over the top causing the pressure to drop as stated by Bernoulli. You have a low pressure area on top and a high pressure area on the bottom, naturally the umbrella flips