In today's class we started off with a recap on how to do the lab that started today. This lab was about the coefficient of sliding friction. This lab required an inclined plane, wooden block, pulley attachment on the plane, sandpaper, a set of weights, a string and a scale.
At first we did 3 trials on just the sliding motion of the block on the inclined plane. The trials required you to adjust the incline on the plane so the block would slide down the plane at constant velocity. Trial 1 required you to slide the block down with the widest part face down, trial 2 required sliding the block with the narrow side down, and trial 3 required you to slide the block down with sandpaper on the bottom of it. All these angles should have varied, but trial 1 and 2 should be pretty close.
The second part of the lab required us to try to slide the block up the incline, by adding weights to the string which is attached to the pulley which is then attached to the block. The angle is already given and weight must be added in order to pull the block up the incline. The inclines varied from 5 degrees to 55 degrees, and obviously more weight was needed with every increase of the incline. This was pretty much all we did for our lab, but tomorrow time will be given if it is needed.
In the back of the booklet we were given a couple calculations and questions that need to be done, and if you're done your lab I suggest you get started on it.
For homework we were asked to finish our chapter 5 study review, so get it done. The next scribe will be Dana.
That is all. -Francis
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1 comment:
Great post-thanks a lot.
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