Review (accuracy, precision, metric, sig fig)

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measured value is to the actual (true) value, while precision refers to how consistently repeated measurements yield the same result.

Front

Define significant figures (sig figs).

Back

Significant figures are the digits in a number that contribute to its precision, including 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 measurement?

Back

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

Front

Convert 1.5 m to cm.

Back

150 cm

Front

What is the metric conversion for 1 km in meters?

Back

1 km = 1,000 m

Front

If a graduated cylinder reads 76.0 mL, how many significant figures are in this measurement?

Back

There are four significant figures in 76.0 mL.

Front

Convert 0.3 m to cm.

Back

30 cm

Front

What is the metric conversion for 1 g in milligrams?

Back

1 g = 1,000 mg

Front

How many millimeters are in 5.2 cm?

Back

52 mm

Front

Convert 2,500 m to km.

Back

2.5 km