Today we started off by checking out homework, the tension worksheet. Coats-Haan talked about 28, then went through 30,33, and 34 step by step on the board. She explained that if you don’t want to worry out which to cos’ or sins to make negative when setting up the equations that you could just figure out the angles in relation to the positive x axis, and just add them all together.
At this point the room was strangely silent and Coats-Haan said, “ Lets move on, cause it’s so quiet I’m getting creeped out” It was interesting because all members of “Team I <3 Life” were here today.
We then started the Hooke’s law lab, in which we added weight to a string and measured the distance the spring stretched. We also had to change the weight in g to kg, then to N. Then we made a graph, force vs. distance measurement. We then used linear regression, and drew the line of best fit.
Our homework was passed out to us, Newton’s Law Practice Problems.
QOD- Is the spring force constant or does it depend on how far it is stretched or compressed? Support your answer with evidence.
A- The spring stretched proportionally to the force exerted on it. You can tell this because when you plot the points from the lab you get a pretty close to perfect diagonal line.
No comments:
Post a Comment