Scientific Measurements

Front

What is significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you round a number to three significant figures?

Back

To round a number to three significant figures, identify the first three non-zero digits and round based on the digit that follows them.

Front

What is the significance of the number 0.00458?

Back

0.00458 is an example of a number rounded to three significant figures.

Front

How many significant figures are in the number 10.005?

Back

There are 5 significant figures in the number 10.005.

Front

What does precision mean in measurements?

Back

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

Front

What is the SI base unit of length?

Back

The SI base unit of length is the meter.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent measurements are with each other.

Front

How do you calculate 78.467 divided by 3?

Back

78.467 divided by 3 equals 26.156, which rounds to 26.2 when considering significant figures.

Front

What is the purpose of using significant figures in scientific measurements?

Back

Significant figures help convey the precision of measurements and calculations, ensuring clarity in scientific communication.

Front

What is an example of a number with 4 significant figures?

Back

An example of a number with 4 significant figures is 1234.