Accuracy and Precision

Front

What is accuracy?

Back

Accuracy refers to how close a measured value is to the actual (true) value.

Front

What is precision?

Back

Precision refers to how close the measured values are to each other, regardless of whether they are close to the true value.

Tags

NGSS.HS-PS2-1

Front

Describe a scenario with high accuracy and high precision.

Back

A scenario where multiple measurements of the same object yield values that are very close to each other and also close to the true value.

Front

Describe a scenario with low accuracy and high precision.

Back

A scenario where multiple measurements yield values that are very close to each other but far from the true value.

Front

Describe a scenario with high accuracy and low precision.

Back

A scenario where measurements are spread out but the average is close to the true value.

Front

Describe a scenario with low accuracy and low precision.

Back

A scenario where measurements are spread out and far from the true value.

Front

What does a bullseye with all darts clustered together but far from the center indicate?

Back

It indicates high precision but low accuracy.

Front

What does a bullseye with darts spread out but centered around the bullseye indicate?

Back

It indicates high accuracy but low precision.

Front

Which is more important in scientific measurements: accuracy or precision?

Back

Both are important; accuracy ensures correctness, while precision ensures consistency.

Front

How can you improve accuracy in measurements?

Back

By calibrating instruments and using proper measurement techniques.

Tags

NGSS.MS-PS3-4