Significant Figures Flashcard

Front

How many significant figures are in the number 33.2?

Back

Three

Answer explanation

The number 33.2 has three significant figures: the '3', the '3', and the '2'. The presence of the decimal point indicates that all non-zero digits and any zeros between them are significant.

Front

How many significant figures are in the number 2051?

Back

Four

Answer explanation

The number 2051 has four significant figures: 2, 0, 5, and 1. All non-zero digits are significant, and zeros between significant digits are also counted. Therefore, the correct answer is four.

Front

How many significant figures are in the number 0.54?

Back

Two

Answer explanation

The number 0.54 has two significant figures. The leading zero is not significant, while both 5 and 4 are significant. Therefore, the correct answer is two.

Front

How many significant figures are in the number 92.00?

Back

Four

Answer explanation

The number 92.00 has four significant figures. The digits 9 and 2 are significant, and the two trailing zeros after the decimal point also count as significant figures.

Front

How many significant figures are in the number 540.?

Back

Three

Answer explanation

The number 540 has three significant figures. The '5' and '4' are significant, and the trailing '0' is also significant because it indicates precision in the measurement.

Front

How many significant figures are in the number 540?

Back

Two

Answer explanation

The number 540 has two significant figures. The '5' and '4' are significant, while the trailing zero is not counted as significant unless specified by a decimal point.

Front

How many significant figures are in the number 1 meter?

Back

Infinite

Answer explanation

The number 1 meter is an exact measurement, representing a defined quantity without uncertainty. Therefore, it has infinite significant figures, as it is considered to be known with complete precision.

Front

How many significant figures are in the number 1000.3?

Back

Five

Answer explanation

The number 1000.3 has five significant figures: the '1', '0', '0', '0', and '3'. The trailing zeros in a whole number without a decimal point are not significant, but the decimal point makes the last digit significant.