Week of 12/14-12/18

This week we continued with motion diagrams and force diagrams. We will be having a test on Tuesday and we are just pretty much reviewing. With the force diagrams we started more with having left and right arrows not just up and down. The force of the earth and the force of us. But, for one example we used for this week was pushing on a shopping cart. So theirs the force of the ground pushing up the earth going down. And the force of one person pushing right and the other pushing left. Still we complied charts and graphs with the force and motion diagrams. We also learned that greater mass less acceleration and lesser the mass greater the acceleration. And also greater force is with greater acceleration and visa versa with the less force andless acceleration. The last thing we wrapped up with this week was we continued with what's the unbalanced force and thats the force that is greater then the other force.

The real world application for this week was like I said before you can push on one side of a cart to one direction and the other side your other friend could be pushing with greater force. You can express that in newtons and in a force diagram.

Week of 12/14-12/18

Week of 12/14-12/18

Week of 12/7-12/11

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.

Week of 11/30-12/04

In the beginning of this week we had a test to sum up that unit and the rest of the week we started on the new unit. We started to learn about force diagrams. Its a lot of fun because their is a lot of acting out or participation during the lesson where excites me. Before we learned about motion diagrams which were horizontal and now force diagrams are a little alike and there vertical. One activity we did in class last week was Jeremy got up in front of the class and had a bowling ball in one hand. And in the other hand was a basketball. So we had to write a force diagram for Jeremy's actions and of course the hand with the bowling ball is going down because the weight of the bowling ball is much more heavier then the basketball. So to create a force diagram for you need three parts the force of the earth which is the arrow pointing down. The object which is his hand and lastly the force of his hands on each ball will be going up. The force from the earth will be equal for each hand hand the force of the hand on each ball will be different because the bowling ball hand will be using more force to keep it up. Its heavier then the basketball and the basketball will have a smaller arrow. We learned about force diagrams which I just explained to you and also number sentences for the force diagrams. All force diagrams are measured in Newtons. After the famous scientist Isaac Newton. Each ball will have different force diagrams because there two different things. The force of the earth for the bowling ball is -43N and the force of the hand holding the bowling ball up is positive 43 N. Then the final product of the number sentence is 43N + -43N=0N. The answer is 0N because the ball is not moving the force of the earth and hand balances out.

The science ideas I've learned this week was force diagrams and number sentences that go with them.

The real world application could be anything even my example some one holding a ball. Force diagrams can explain a lot of science experiments.