This week we continued with force diagrams and number sentences and we also had more motion diagrams to also explain a problem dispit force diagrams. One problem we had this week that had to do with force diagrams is with a scale and a water bottle. So the scale was not the everyday scale you use at your home to check your weight. But, its a scale that you use to check a lot of things, anything that hooks onto a hook. So the one we experimented this week was a water bottle. Mr. Finley demostrasted it by at the top of the scale was his finger and in the middle was a dial that went from 0 to 20. At the end of the scale was the water bottle, and according to the scale it weighed 8.5 ounces I think it was. And Mr. Finley added on one thing about the scale, was he brought the scale down forcefully and we had to tell him what is happening. And also we had to express what is happening in a force diagram. I personally said when he brings the scale/water bottle down the weight goes down because their is a spring in the back and it goes up when its lighter and down when its heavier. So the scale went down which pushes the spring up.
Later in the week we had a quiz on force diagrams and motion diagrams and how you express problems with them. I think I did farly good but then after the quiz I realized I could of done better. This week was pretty much wrapped around still getting in the grovve of force diagrams.
The real world application for this lesson could be when your in the supermarket. You go to weigh a fruit, you say to your self how does this machine make the weight go up when the container is being pulled down.
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