Measurment

Multiple Choice

Which of the following is the correct way to convert a temperature from degrees Celsius to Kelvin?

• Add 273 to the Celsius temperature

• Subtract 273 from the Celsius temperature

• Multiply the Celsius temperature by 273

• Divide the Celsius temperature by 273

Multiple Choice

What is the main difference between accuracy and precision in measurements?

• Accuracy is about how close a measurement is to the accepted value, while precision is about how close repeated measurements are to each other.

• Accuracy is about how close repeated measurements are to each other, while precision is about how close a measurement is to the accepted value.

• Accuracy and precision mean the same thing in science.

• Precision is not important in scientific measurements.

Fill in the Blanks

Percent error is the ratio of error to an accepted value, multiplied by

Multiple Select

Which of the following are required to calculate percent error?

• Experimental value

• Accepted (actual) value

• Number of measurements

• Both experimental and accepted values

Open Ended

Explain how percent error is calculated and why it is important in scientific measurements.

​https://youtu.be/KEeSQvMCPLg?si=KOaP6AwXAjQZisxR

Open Ended

A length of wood has a labeled length value of 2.50 meters. You measure its length three times. Each time you get the same value: 2.35 meters. Are your measurements precise? Are they accurate?

Multiple Choice

What is the SI unit for temperature?

• Kelvin

• Celsius

• Fahrenheit

• Joule

Open Ended

How confident do you feel about converting between Celsius and Kelvin after this lesson? What would you like to review or practice more?