Particle Velocity Investigation
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There were many small sources of error in my experiment, such as air resistance, which slightly slows down the ball as it falls, causing the time to be slightly more, and so not what was predicted, as the equation h=1/2gt2 does not take this into account. The gravitational field strength, which was taken to be 9.81m/s2 is not quite accurate, as it has only been calculated to two decimal places, however, this would show up only on the predicted results, as the g would be the actual value of g in the experiment. The height might not have been very accurately read, due to a parallax error, caused by not looking directly at the scale horizontally, and so would show up as an inaccuracy in some of the readings. The centi second timer, although the most accurate form of timing available, is still not 100% accurate, as it cuts off the other digits, rather than rounding them up, so the average error will be 0.005s, although this would only show up as a very small error.
I could have improved these areas of error maybe by ...
