Physics 10-20-16 Forces & Equilibrium

PHYSICS: So, how is the balance in your life? Here’s the lesson from Thursday on net force, equilibrium, and equilibrants. Were you experiencing a little déjà vu?

Great job today! Thank you, Hannah and Mary Addison, and Jonathan and Patrick, for being such good sports!!!

Physics 10-20-16 Forces & Equilibrium from Tammy Skinner on Vimeo.

Image source phoenix.fanster.com/…/2009/08/tug-o-war1.jpg

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6 thoughts on “Physics 10-20-16 Forces & Equilibrium

  1. This week I learned about Newtons laws, inertia, and forces. I learned that an object that has mass, has inertia. The amount of mass an object has is equal to the amount of inertia it has. Inertia simply put is how much an object wants to remain in the same position or stay doing the same thing. An object will continue to stay stationary or move until another forces either moves it or stops it. This can be a physical force (a wall in the way of a ball) or a force such as friction. I also learned about equilibrium. This is when the net force applied to an object is equal to zero. This can either be when the object is at rest or is moving at a constant velocity. When an object is at rest, gravity is pushing down while the ground underneath is pushing up. If an object is going at a constant velocity the ground and gravity still apply their force, but horizontal forces are added. For example: In a car, however much force is applied for the car to move forward, friction is pushing back that same amount.

  2. I would rate myself a 4 out of 5 for this week. I think the inertia lab went really well, and I feel great about all of our lessons so far. The reason I am not rating myself a 5 out of 5 is due to the fact that I am a little nervous about the lab tomorrow. We have a method to (hopefully) work it out; however, it might be a little difficult to be as accurate as possible. Hopefully, this is not the case and it ends up working out awesome just like we plan!

  3. This week, I would rate myself a 4 out of 5 stars. Learning more about forces, Newton’s first law, and equilibrium has been such an enlightening experience! It is amazing to see God’s hand through all of these laws being perfectly executed in everyday life. The video on Newton’s first law was one of my favorite parts about this week because it allowed us to see so many unpredictable experiments representing the unbelievable effects inertia can have on objects. I feel very comfortable with the concept of inertia, and the take home lab helped me to see the law of inertia executed by using my own force. Learning about equilibrium with the rope examples today was awesome, too! I need to make sure I remember exactly how to work resultant vector problems in order to find the correct equilibrants for the homework problems. Sadly, I have already gotten a little rusty on all of the steps, so I really need to be sure I am working everything correctly. And, finally, I hope me and Karen can find the mass of the copper spool tomorrow with the Inertia Balance Lab. We are fairly confident with our procedure and technique, but I hope we can measure everything accurately and get as close to the spool’s actual mass measurement as possible.

  4. I would rate myself a 5 out of 5 stars for this week. I really enjoyed the lessons we learned, and the videos and the Inertia Lab helped me understand the concepts well. I was able to understand the homework too. The only thing I struggled with was completing one problem on the worksheet and finding a topic for science in the news. I found many topics that involved physics, but they were not every day applications.

  5. This week I really learned how inertia worked, and applied it. I sort of understood the concept of inertia, but never fully comprehended it, but after our lab, I completely understand. This week I also learned a lot from my science in the news and can’t wait to talk about them Monday. The rope example and the lab we did today really helped me to understand inertia and force.

  6. So before today I was fully prepared to give myself a 5/5 for the week. I really understood the concept of inertia after the lectures & was fairly confident with my ability to work the problems. Though I did struggle with the vectors test, which will be used a whole bunch to solve inertia problems, I believe that I can work them for a couple of reasons. The main reason being that I was able to correct most of my test on Monday. As well as my understanding of inertia, I was super pumped about this lab that we were doing today. On Wednesday, or whichever day it was that we prepared for it, Mary Addison & I had a clear plan & had actually begun the lab. Walking in today, that meant that we were slightly ahead of everyone else. Our confidence in ourselves quickly crashed and burned today, which brings me to why I am only giving myself a 4/5. Honestly, I nor Mary Addison are quite sure what we did wrong, but we were struggling hardcore. After spending all of 5th period, lunch, & 6th period on the lab with no luck, I was convinced that it was impossible. Thankfully, I had Mary Addison to push me to work through the frustration & stay positive. In the end, the last attempt we made before we absolutely had to part ways proved a success as we only got about 3.5% error. (There probably haven’t been two happier physics students in a long time) Overall, this week was pretty smooth sailing until we hit a slight bump today. That being said, I believe it was still a successful week.

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