You are given a block of metal with a 'known' mass of 110.2 g. You measure its mass three times and get the following readings: 100.2 g, 100.1 g, and 100.3 g.

Which is better, the accuracy or the precision of your measurements?

Question

19-08-2023
Physics

High School

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You are given a block of metal with a 'known' mass of 110.2 g. You measure its mass three times and get the following readings: 100.2 g, 100.1 g, and 100.3 g.

Which is better, the accuracy or the precision of your measurements?

Answer :

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Final answer:

From the given measurements, it is observed that the precision of the measurements is good as they are very close to each other. However, the accuracy is poor because they differ significantly from the known mass of the material. So, in this scenario, precision is better than accuracy.

Explanation:

In your experiment, accuracy refers to how close your measurements are to the known mass of the metal block, 110.2 g, while precision refers to how close the agreement is between your repeated measurements (100.2 g, 100.1 g, and 100.3 g).

Judging from the measurements, the precision of your measurements is better than the accuracy. That is because the multiple measurements are very close to each other (minimal variation), displaying great precision. However, they differ significantly from the known mass (110.2 g), showing poor accuracy.

This demonstrates that your instrument is consistent (precise) but not necessarily correct (accurate). It could be that your balance is calibrated incorrectly or the 'known' mass provided is inaccurate. Regardless, adjustments could possibly need to be made to improve the accuracy of your measurements.

Learn more about Accuracy and Precision here:

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You are given a block of metal with a 'known' mass of 110.2 g. You measure its mass three times and get the following readings: 100.2 g, 100.1 g, and 100.3 g.Which is better, the accuracy or the precision of your measurements?

Answer :

Final answer:

Explanation:

Learn more about Accuracy and Precision here:

Other Questions

You are given a block of metal with a 'known' mass of 110.2 g. You measure its mass three times and get the following readings: 100.2 g, 100.1 g, and 100.3 g.

Which is better, the accuracy or the precision of your measurements?