Ryan+Donovan+10-1-08

Today we started off with our daily question which was what is wrong with this students clam? When burl stands in the middle of the ruler, each scale weighs half of the ruler and burl. The answer is the scales measure the amount of weight being applied to them. We also discussed the equilibrium lab. For the lab the measurement for the weight was determind by the scales. In the lab we used either a 5 or 10 N weight. We did many trials for the lab with many different ways of measurement. Than we went over the worksheet Newtons First law of Motion. For example little nelie newton when practicing gymnastics goes on many different scales to show how many newton forces were being applied to them. She held on to two rings apply the same amount of weigh on each. This mean the net force on both rings should be equal to each other. Two balanced forces is equvilant to having a net force as 0. A truck passing over a bridge shows that there is a balanced force otherwise the bridge would break. A truck passing over the bridge would be applying pressure downward on the bridge, but since the ends of the bridge are able to maintain its position it lets the truck pass over easily and with out breaking. If for some reason the forces were to become unbalanced then the bridge would either break or go straight up in the end points have a great net force.