Today we did more with Free Body Diagrams and an interesting lab. We did a lot of practice problems for Free Body Diagrams both in the packet and on the board that really helped me understand the concept even more. We also did a lab to day involving huge air tracks, which create a frictionless surface. The lab was an example of Newton's first law, "An object in motion will tend to stay in motion unless acted upon by an unbalanced, outside force". It was pretty confusing and we had to keep changing everything and redoing our data. Eventually Jon figured it out and the whole class used the same data.
http://image.shutterstock.com/display_pic_with_logo/449803/449803,1286955438,2/stock-photo-hand-on-a-mallet-over-air-hockey-table-62901796.jpg
The air track reminded me of an air hockey table because it shot air out of little holes just like on an air hockey table. The concept for both is similar, so an air hockey table can be frictionless.
Really cool! I also Found this relatable to air hockey and it really helped me understand the pulley problems because we took friction out of it!
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