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Use a micrometer to make measurements nearest 10-6 meters using a micrometer. Use an electric scale to measure mass to the nearest 1/100 of a gram. Use a pendulum to measure the acceleration due to gravity. Introduction. Physics is a quantitative experimental science and as such is largely a science of measurement.
15 paź 2022 · In this lab, you will be introduced to some common measuring devices, and learn how to use them to obtain correct measurements, each with correct precision. A metric ruler will be used to measure length in centimeters (cm).
10 wrz 2021 · The meter is used to measure distances; the liter measures volume; and the gram measures mass. A measurement must always consist of a number and a unit, for example, 2 m, conveys the length is twice that of the base unit of length, the meter.
In lab, you will generally use a 15 cm ruler to measure distance. The numbers on the metric scale of the ruler represent centimeters, and the smallest calibration marks represent millimeters. The basic unit of distance is the meter (m).
Measure distance between start and end points. Divide this distance by three to get average distance covered during one walking step. Record data in Table 3. Alternatively, you can measure one step as shown in Figure 3. However, because it is just one step you are consciously taking for a measurement, you tend to have a longer step. Figure 3 ...
A good estimate of instantaneous speed is measured by a car speedometer, while the average speed can be calculated knowing the distance travelled and the time taken. As an extension activity, you could use a pair of source-sensor assemblies linked to the same computer to obtain two velocity values and the time between their measurements.
18 cze 2020 · Accuracy is a measure of how close an experimental measurement is to the true, accepted value. Precision refers to the degree of uncertainty in a measurement. For example, a mass measurement of 48.26 g has an uncertainty of ±0.01 g, while a measurement of 48.3 g has an uncertainty of ±0.1 g.
