Question

.Измерьте линейкой с миллиметровыми делениями длину и ширину вашего учебника. Запишите результаты с учетом погрешности измерения. ПО УЧЕБНИКУ : Физика 7 класс А.В. Перышкин. Какая погрешность измерений и как записать?Длина - 21.6 см

Answer 1

Там округлить и получится 22см, а погрешность будет 0,4

Answer 2

Measuring the Physics Textbook

To measure the length and width of the "Физика 7 класс А.В. Перышкин" textbook with millimeter precision, we would need to use a ruler with millimeter markings. The measurements should be recorded with consideration for the precision of the ruler and the method of measurement.

The user has provided the length of the textbook as 21.6 cm. However, they also asked about the measurement error and how to record it. Let's address these points.

Measurement Error and Recording

When measuring with a ruler, the measurement error is typically half of the smallest division on the ruler. In this case, if the ruler has millimeter markings, the measurement error would be ±0.5 mm. This means that the actual length of the textbook could be as small as 21.1 cm or as large as 22.1 cm.

To record the measurement with the error, it can be written as 21.6 ± 0.5 cm. This notation indicates the measured value and the range within which the true value is expected to lie.

If the user also wants to measure the width of the textbook, they can follow the same procedure using the ruler with millimeter markings and record the measurement with the associated error.

If there are any further questions or if additional assistance is needed, feel free to ask!