Question

calibration of this thermometer is 1°c, which informs us to record the temperature measurement to the tenths place (0.1 °c). how should you record the temperature measurement for this thermometer? 31°c 30.01°c 29°c 31.0°c

Explanation:

Step1: Analyze thermometer scale

The thermometer has major marks (20, 30) with 10 divisions between them, so each small division is $1^\circ$C (calibration is $1^\circ$C). But we record to tenths place (0.1 $^\circ$C).

Step2: Read the temperature

The liquid level is at 31.0 (since we need to record to tenths place). The options: 31 $^\circ$C (no tenths), 30.01 (too precise), 29 (wrong), 31.0 (correct, to tenths place).

Answer:

31.0 $^\circ$C