MT: Chapter 5.1 REVIEW Measurements

Front

What is the result of 8 ft ÷ 2 sec?

Back

4 ft/sec

Front

How many significant figures are in the number 0.0005?

Back

1

Front

What is the precision of the measurement 0.764?

Back

nearest thousandth of a pound

Front

How many significant figures are in the number 0.456?

Back

3

Front

What is the precision of the measurement 2345.6 lb?

Back

nearest tenth of a pound

Front

Define significant figures.

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

What is the rule for counting significant figures in a number with leading zeros?

Back

Leading zeros are not counted as significant figures.

Front

What is the rule for counting significant figures in a number with trailing zeros?

Back

Trailing zeros in a decimal number are counted as significant figures.

Front

If a measurement is reported as 0.00456, how many significant figures does it have?

Back

3 significant figures.

Front

What is the difference between precision and accuracy?

Back

Precision refers to the consistency of measurements, while accuracy refers to how close a measurement is to the true value.