1. 1. By Matthias, Ryan and Jimmy
2. 2. Gravity pulls objects towards the center of the earth. Therefore we have decided to drop objects off of heights to showcase gravity. Acceleration of a falling object: 2*height / (time)2
3. 3. To find out the precise measurement of gravity, we decided to drop objects off two heights. The drops measured 5.3 and 3 meters. We dropped an eraser, a ball, and a rock five times each and recorded the results. Requirements - Eraser - Ball - Rock - Height
4. 4. Rock Weight 367.41g Time 1 0.69s Time 2 0.79s Time 3 0.7s Time 4 0.88s Time 5 0.79s Height: 3 meters Rock average time: 0.77 s
5. 5. Eraser Ball Weight 21.3g 79.45g Time 1 0.97s 1.15s Time 2 1.01s 1.01s Time 3 0.86s 1.02s Time 4 1.11s 1.09s Time 5 1.03 0.99s Height: 5.3 meters Eraser average time: 0.996 s Ball average time: 1.052 s
6. 6. Acceleration of a falling object = 2*height / (time)2 Rock acceleration = 2*3m / (0.77s)2 = 10.12m/s2 Ball acceleration = 2*5.3m / (1.052) 2 =9.58 m/s2 Eraser acceleration = 2*5.3m / (0.996)2 = 10.69m/s2
7. 7. When you drop an object, it is falling under the sole influence of gravity Factors: Air resistance, wind, reaction time, force of the drop, exact distances.