Understanding Sig Figs and Unit Conversion

Front

What are 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 determine the number of significant figures in a number?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

How many significant figures are in the number 0.002040?

Back

4 significant figures.

Front

How many significant figures are in the number 1000?

Back

1 significant figure (unless specified with a decimal point, e.g., 1000. has 4 significant figures).

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 repeated measurements are.

Front

If a dart thrower hits the bullseye consistently, they are:

Back

Accurate.

Front

If a dart thrower hits the same spot on the target repeatedly, they are:

Back

Precise.

Front

What does it mean for a measurement to be both accurate and precise?

Back

It means the measurements are close to the true value and are consistently close to each other.

Front

How many significant figures are in the number 0.00456?

Back

3 significant figures.

Front

What is the significance of trailing zeros in a decimal number?

Back

Trailing zeros in a decimal number are significant because they indicate precision.