Part 2: Fall Semester Exam Review

Front

What is the process of rounding a number to significant figures?

Back

Rounding a number to significant figures involves adjusting the number to retain a specified number of meaningful digits, starting from the leftmost non-zero digit.

Front

How many significant figures are in the number 350.540?

Back

6

Front

What is the definition of accuracy in measurements?

Back

Accuracy refers to how close a measured value is to the true or accepted value.

Front

What does high precision mean in measurements?

Back

High precision indicates that repeated measurements yield similar results, even if they are not close to the true value.

Front

If a measurement is both accurate and precise, what does that imply?

Back

It implies that the measurements are close to the true value and also consistent with each other.

Front

What is the significance of significant figures in scientific measurements?

Back

Significant figures indicate the precision of a measurement and help convey the uncertainty in the data.

Front

Round the number 1047.78 to three significant figures.

Back

1050

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to closeness to the true value, while precision refers to the consistency of repeated measurements.

Front

How many significant figures are in the number 10,080 seconds?

Back

4

Front

What does it mean if a measurement has low accuracy but high precision?

Back

It means that the measurements are consistent with each other but are far from the true value.