Introduction The purpose of this whole lab is to get you used to making measurements. You'll be measuring mass, time, and length. Besides learning some basic measurement techniques, you must realize that measurements always have some uncertainty in the values. When you make a measurement (x), you must estimate, or estimate, the absolute certainty in your measurement. This number is based on how well you think that you could make the measurement. The absolute uncertainty may be a function of the quality of the measuring instrument, the nature of the quantity being measured, the ability of the individual making the measurement, and the conditions in which the measurement is being made. You also must discuss how you determine the absolute uncertainty of the measurement in the Method paragraph of a laboratory paper. Taking the measured value and the absolute uncertainty together, you obtain the measurement interval. This symbol represents the interval in which we have confidence the measure value lies. In Physics Labs, we will adopt the simple rule that the absolute uncertainty of the measurement is reported to only one or at most two, significant figures. Abstract So this lab in my opinion is just to verify that there will always be an error because two people can't measure the same thing several times and get the exact same number every time. It just isn't possible, so the way we figured this out was simple. We each measured 5 different ways several times, and recorded it in a table. We measured the length of the pendulum, the diameter of the ball, the mass of the ball, the period of the pendulum, and the weight of the pendulum. After we did it several times, and recorded it, we came to the conclusion that if we measure different things several times, we will always get similar answers, but never the exact same number. All of us measured 5 different things at least twice, and we always got different answers. They were always within the s