(一)误差和错误误差是指正确方法测量时产生的测量值和真实值之间的差异。误差产生的原因既与测量工具有关,如测量仪器不可能造得绝对准确;又与测量的人有关,不同的人在估读时估读位一般是不相同的。可见,无论选择怎样精密的仪器,用怎样好的实验方法,误差都不可避免,只能是尽量减小。而错 (I) Error and error error refers to the difference between the measured value and the true value produced when the correct method is measured. The reason for the error is not only related to the measurement tool, such as the measurement instrument cannot be made absolutely accurate; it is also related to the person being measured. Different people generally estimate the reading position when they are read. It can be seen that regardless of the precise instrument chosen, the error is unavoidable with any good experimental method. It can only be minimized. And wrong