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We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
Mr. G's Blog
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by teacher: Alfonso Gonzalez
Blog Entries

Friction
I learned that friction is a force that happens when two objects rub together. Without friction there would be nothing to stop us from sliding all over the place.
We used a 10/2.5 newton scale to measure the friction force of a wood block and 5 different surface types. I learned from inquiry 6.1 that the force of friction is different when something is dragged across different surfaces.
From inquiry 6.2 I learned that the weight you pull across a surface, the friction force there is. We dragged a block across one particular but, this time we changed the weight that we dragged across the surface. In conclusion, the more weight= the more friction.
From inquiry 6.3 I learned that if something has a smaller surface area with the same weight the smaller surface area has more friction force. For this experiment, we used on block but changed the surface area. The smaller surface area had more friction force.
FRICTION IS FUN=http://=http://=http://=http://=http://=http://!!!

Article posted May 16, 2012 at 02:11 PM • comment • Reads 91 • see all articles

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