1. Prepared by Gloria Wang Date: 2009-10-06 The way of g measurement

2. Use two pan balance to measure the mass of 10 balls, then we can get the different mass of 10 balls newton first law

3. Use a spring balance to measure the weight of 10 balls, then we can get the different value of W for 10 balls newton first law

4. g = W / M=9.8 m/S 2 Measure result newton first law M g W 10 9 8 7 6 5 4 3 2 1 ball

6. Thanks for your attention!