Thursday, October 16, 2014

Gravity Lab

Data Analysis: labels and units!
0.06kg            0.589
0.07kg            0.681 
0.08kg            0.786 
0.09kg            0.891 
0.1kg              0.997

VM: As the weight  mass increases, the force increases.
MM: Fg = (10.26N/Kg)mass-0.0032N
Slope: For every 1 Kg added, the force increases by 10.26 N.
Y-int: Where the mass is zero Kg, the force is -0.0032N
(the y-int should be 0 because if there is nothing hanging there would be no force)

Claims/Evidence/Conclusion
Mass and weight are both different. Mass is the measure of matter in an object while weight is the measure of how hard gravity is pulling an object. Everyones graph is the same becasue the amount strength of the field of gravity on an object is ALWAYAS the same and they are all linear.. Our graph is a bit different from others because we had different masses but everyone has similar slopes. Fg=mg means that the force is equal to mass x gravity. It gives you the amount of pull on the mass due to gravity.all points are there....  but conclusion could be better written, clearer, and proofread it!


Saturday, October 4, 2014

Dueling Buggy Lab

Objective:  The objective was to figure out the point that the two buggies would meet going in opposite directions. 
Your Plan- : We laid out 3 meter sticks and marked every 2 feet with a piece of tape. We took a video of each buggy and with that we found the exact time it took for them to travel every 2 feet and a time it took to travel a total of 10 feet. 


-Data Analysis:  After we collected the data for both cars we then calculated the speed measured in feet per seconds for each. HOW did you get these speeds? Once we got the speed we created a y=mx+b equation. M= their speed, b= their starting position, x= their time, and y= their position. good!For the fast buggy we got y=1.37x and the slow buggy was y=-.5x+10. We graphed these equations using a calculator and found the point of intersection: 7.33 feet and 5.35 seconds. We tested it out and it was right. where is the graph?


-Using your Model/Designing a Solution:  When asked where they would intersect starting at 4 feet, we plugged 4 in for 10 in the equation for the slow buggy because that would be the new starting point. After graphing with a calculator we concluded that the intersection would be at 3 feet in around  2.13 seconds. Once we tested it out our predictions were correct.