Results and Conclusion
Conclusion:
The biggest source of error was that we were really bad at swinging the socket around in a horizontal circle. Having the string hang at an angle accelerates the socket a a different rates at different time. As for the other sources of error, they are not such a great factor when compared to the horizontal circle. Observations from this lab are used in many areas of engineering and they cannot afford such a high error. If the sources (which are not hard to fix) were fixed, then our percent error would have been peanuts.
The biggest source of error was that we were really bad at swinging the socket around in a horizontal circle. Having the string hang at an angle accelerates the socket a a different rates at different time. As for the other sources of error, they are not such a great factor when compared to the horizontal circle. Observations from this lab are used in many areas of engineering and they cannot afford such a high error. If the sources (which are not hard to fix) were fixed, then our percent error would have been peanuts.
Sources of Error:
We calculated the mass of the mystery mass to be .54 Kg. The correct mass was .6 Kg. To figure out how much we were off we calculated percent error. Percent error tells us by what percent was our value larger or smaller than the real value. To calculate percent error you subtract your calculated value from the real value and then divide by the real value. Our calculations said .54 Kg. we subtract .54 from .6 and divide by .6. The percent error comes error comes out to 10%. The amount of error in our calculations is easily spotted. Here they are.
1) Human reaction with stopwatch
2) FRICTION BETWEEN THE FISHING LINE AND the spring punch
3)non-constant acceleration while spinning.
However there was one big source of error that is
even easier to see. watch the video
We calculated the mass of the mystery mass to be .54 Kg. The correct mass was .6 Kg. To figure out how much we were off we calculated percent error. Percent error tells us by what percent was our value larger or smaller than the real value. To calculate percent error you subtract your calculated value from the real value and then divide by the real value. Our calculations said .54 Kg. we subtract .54 from .6 and divide by .6. The percent error comes error comes out to 10%. The amount of error in our calculations is easily spotted. Here they are.
1) Human reaction with stopwatch
2) FRICTION BETWEEN THE FISHING LINE AND the spring punch
3)non-constant acceleration while spinning.
However there was one big source of error that is
even easier to see. watch the video