Physics - Test 1: Metrology Form A

Match the following

• Slope of "Mass vs Volume" Graph

• Metrology

• Number of significant digits

• Density

• Accuracy & Precision

• Qualities of a good physical measurement

• Accuracy

• Precision

• Important for consistency and fairness

• 

In a measurement, how do accuracy and precision differ?

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

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

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?

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

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

What is the number of significant figures in 9.50 m?

Round the number 0.04087 to three significant figures?