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This lab serves a double purpose in examining the inverse square law for light intensity and comparing the heating rates of an evacuated tube solar collector used in solar heating devices. This tube is constructed with two layers of borosilicate glass and an insulating vacuum layer in between. We will be looking to discover if our light intensity sensor produces an inverse square relationship with distance, and to see if there is an inverse square relationship between light intensity and heating rate. Learn More$9.99
This lab follows closely the procedures done in a standard “angle of insolation” earth science lab. We will be using the sun for our measurements and will need a window that is exposed to direct sunlight. This lab will run for several hours so it is important to pick a day when sunshine will be in abundance. The tubes will remain fixed and at very different angles. We will be looking to discover any major differences in how the water heats in each of the tubes over that several hour time frame. Learn More$9.99