Accuracy and Precision

____________ is a measure of how close measurements come to each other when they are made in the same way.

• Student A

• Student B

• Student C

• Cannot be determined

How close a measurement is to the accepted value is called ___________.

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Tags

NGSS.MS-PS3-1

This bullseye demonstrates...

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & High Precision

• Low Accuracy & Low Precision

A student's measured length during a science experiment was 12.00 cm. The actual size was 14.25 cm.

What was the percent error?

*Hint: You now know how to calculate error, and you should know how to calculate a percent, so put the two together to find this answer.

• 15.79%

• 18.75%

• 2.25%

Jessie estimates the weight of her cat to be 8 pounds. The actual weight of the cat was 10 pounds.

What was the percent error?

*Hint: You now know how to calculate error, and you should know how to calculate a percent, so put the two together to find this answer.

• 15%

• 20%

• 25%

• 30%

Describe the accuracy and precision of the image

• Very accurate and somewhat precise

• Very accurate but not precise at all

• Not accurate at all but very precise

• not accurate and not very precise

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Based on the markings of this beaker, what is the estimated volume?

• 48 mL

• 48.2 mL

• 48.25 mL

• 0.04 L

Based on the markings of this graduated cylinder, what is the estimated volume?

• 63.5 mL

• 63 mL

• 63.55 mL

• 0.063 L