What is the uncertainty [Fill in the blank],
°C indicated by this thermometer? (Only add the numerical value here, do not add +/- or the units) Hint: only 1 sig fig can be used for uncertainty unless the first sig fig starts with a 1.

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Question

What is the uncertainty [Fill in the blank],
°C indicated by this thermometer? (Only add the numerical value here, do not add +/- or the units) Hint: only 1 sig fig can be used for uncertainty unless the first sig fig starts with a 1.

Open this image in a new tab if your image does not load

BlackTom AI · Accepted Answer

The question asks for the uncertainty, expressed as a numerical value only. There are no answer options provided to gauge multiple choices, so we rely on the given answer key and the accompanying hint.

Key idea: Uncertainty is typically taken as one significant figure, representing the place of the last measured digit. The hint specifies that only one sig fig can be used for uncertainty unless the first sig fig starts with a 1, in which case you may use two sig figs. In this case, the numerical value provided in the answer field is 1, which aligns with using a single significant figure for the uncertainty if the first significant figure does not begin with 1, or if the formatting of this particular item intends a single-digit uncertainty.

Given the provided answer is 1, the justification follows the convention that the uncertainty corresponds to the last significant digit of the thermometer’s reading when expressed to the reported precision. If the thermometer reading is given with precision to the nearest degree Celsius, the standard uncertainty would be 1°C in numerical form, represented here by the value 1 (without the ± symbol or units, per the instructions to only include the numeric value).

Why there aren’t alternative options to evaluate: The original item’s answer_options field is empty, so there are no distractors or alternative numerical choices to critique. In a typical assessment with options, one would assess each candidate uncertainty value against the instrument’s least significant digit and the stated rule about significant figures.

In summary, the response 1 matches the standard convention for a one-significant-figure uncertainty at the stated precision level for a thermometer reading reported to the nearest 1 degree Celsius, and complies with the instruction to provide only the numerical value.

FFP001 Threshold Quiz 2 | LA007

What is the uncertainty [Fill in the blank], °C indicated by this thermometer? (Only add the numerical value here, do not add +/- or the units) Hint: only 1 sig fig can be used for uncertainty unless the first sig fig starts with a 1. Open this image in a new tab if your image does not load

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