Understanding Significant Figures

What is the number of significant figures in 0.00456?

• 4

• 3

• 2

• 5

How many significant figures are in the number 1002?

• 5

• 3

• 2

• 4

Which of the following numbers has the most significant figures: 0.0034, 34.00, or 340?

• 34.00

• 34.000

• 340.0

• 0.0034

When adding 12.11 and 0.3, how many significant figures should the result have?

• 2

• 3

• 4

• 1

What is the rule for counting significant figures in a number with a decimal point?

• Trailing zeros before the decimal point are significant.

• Only non-zero digits are significant.

• All digits in a number are significant regardless of their position.

• All digits from the first non-zero digit to the last digit, including zeros between and trailing zeros after the decimal point, are significant.

How many significant figures are in the measurement 0.00780?

• 5

• 2

• 3

• 4

In the number 2500, how many significant figures are there if no decimal point is present?

• 2

• 4

• 3

• 1

Which of the following is true about significant figures: A) All non-zero digits are significant B) Leading zeros are significant C) Trailing zeros in a whole number without a decimal are significant?

• A

• Leading zeros in a decimal number are significant

• Trailing zeros in a decimal number are not significant

• All zeros are significant

When multiplying 3.00 by 2.5, how many significant figures should the answer have?

• 2

• 1

• 3

• 4

What is the significance of significant figures in scientific measurements?

• Significant figures have no impact on the reliability of measurements.

• Significant figures are crucial for accurately representing the precision of scientific measurements.

• Significant figures are used to enhance the aesthetic of scientific reports.

• Significant figures are only important in chemistry experiments.