Physics - Test 1: Metrology Form A

Match the following

• Accuracy

• Density

• Accuracy & Precision

• 
• Slope of "Mass vs Volume" Graph

• Metrology

• Important for consistency and fairness

• Precision

• Number of significant digits

• Qualities of a good physical measurement

In a measurement, how do accuracy and precision differ?

Sentence Frame That You Could Use: While accuracy refers to _________, precision refers to __________.

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Why is metrology deemed a critical field in physics? Refer to your Notes.

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In a lab, teams of students measure the length of an object. The accepted value of the length of the object is 2.74 cm. Which team made the most precise measurements?

• Team 4

• Team 5

• Team 6

• The precision of all 7 teams is the same.

In a lab, teams of students measure the length of an object. The accepted value of the length of the object is 2.74 cm. Which team made the most accurate measurement?

• Team 4

• Team 5

• Team 6

• The accuracy of all 7 teams is the same.

What is the number of significant figures in 0.0007 m?

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What is the number of significant figures in 7,000,000 m?

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What is the number of significant figures in 7,001 m?

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What is the number of significant figures in 9.50 m?

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Round the number 0.04087 to three significant figures?

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