Measurement and Significant Figures Flashcard

Front

What is a unit used in scientific measurement?

Back

A unit used in scientific measurement is a standard quantity used to express a physical quantity. Examples include meters, liters, and grams.

Front

How many significant figures are in the number 4300?

Back

The number 4300 has 2 significant figures.

Front

What is the result of 100.5 + 0.0032 rounded to the correct number of decimal places?

Back

The result is 100.5.

Front

What do significant figures in a measurement show?

Back

Significant figures indicate how precise a measurement is.

Front

How many significant figures are in the number 0.00520?

Back

The number 0.00520 has 3 significant figures.

Front

What is the definition of 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

Why is it important to use significant figures in scientific measurements?

Back

Using significant figures ensures that the precision of measurements is communicated clearly and accurately.

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

How do you round a number to a specific number of significant figures?

Back

To round a number, look at the digit immediately after the last significant figure you want to keep. If it's 5 or greater, round up the last significant figure.

Front

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

Back

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