We did a lab with these concepts in which we had different people going up the 10 meter stairwell at different speeds. We then calculated their gravitational energy (Eg=mgh), which I equal to the work. The next step is to divide the work by the time it took to climb the stairs and the resultant would be in watts. We converted the number in watts to horsepower by multiplying the power by 0.00134. It was concluded that mass played a factor in the final power of different people. For example, one person had a faster time, but had less horsepower than another competitor because he weighed less this surprised me, but it does make sense. The larger the numerator, the greater the result.
Today (Friday), we took the last assessment for our unit on energy and as a whole, it went pretty good. I was absent from school yesterday so I found that the things I was a little confused on we're discussed yesterday. But I do feel like I understand the material and can calculate the energy, work, and power effectively for different situations. The one thing I had to keep reminding myself was to multiple the mass by 10 to get the force for the equations, but I think I got it today on the assessment. I would personally like the assessment to be on the fourth quarter to allow time for reassessment because I wasn't here yesterday and I'm not sure if that will affect my assessment scores. But, whatever happens happens!
More to come next week as I'm sure we will tackle new material. Happy fourth quarter! :)
No comments:
Post a Comment