Physics Help - s'il vous plait :)? - il be in my lab
We have finished writing a lab in class and I think UPS. We have three different experiments and will write a general conclusion from the comparison and say the result was more accurate, and why we believe it is more accurate.
We are trying to do things like gravity or something (9.8 m / s ^ 2)
In the first experiment using the stock market timer and measure the distance of the points he made about the role of coal in 0.6 seconds.
Secondly, we temporary, how long it took for the pendulum back and forth.
Thirdly, he has a ball down the stairs.
My results are as follows:
1.) 8.5 m / s ^ 2
2.) 9.23 / s ^ 2
3.) 8.2 m / s ^ 2
Of course, my second result is closest, but I can use it as an explanation of why?
Monday, February 15, 2010
Il Be In My Lab Physics Help - S'il Vous Plait :)?
2 comments:
They are a pleasure to help.
First, it helps to explain the weaker results than expected draw. In the first case, there are a lot of friction and resistance of the ticker-timer to draw a instrument with which teletype paper. In the second case, the air resistance is has an impact on the clock. The same applies to the focal point. There are some tensions there. Also, the ball loses energy with each bounce.
Second, you can blame their actions on the measurement inaccuracies. In the first case, the points are areas very closely. This not only increases the error rate for many. The measurements and the mean Resût. The same goes for the clock. Changes in various sizes and the results averaged. Do the same with the ball. The measurement of the number of bOunces, and repeat the experience. The pendulum and the ball actually logs a damped sine function. The period is the time between jumps or clock. And the amplitude is attenuated (reduced to zero) by friction. In this way the pendulum will stop swinging, and bouncing the ball more and more until it just runs away and stops.
not because you asked in French
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