Understanding Significant Figures Quiz- HONORS

What is a significant figure?

• A number that is always zero

• A digit in a number that contributes to its accuracy

• A number that is always one

• A digit that is never counted

How many significant figures are in the number 0.00450?

• 2

• 3

• 4

• 5

Which of the following numbers has 4 significant figures?

• 0.00340

• 12.30

• 0.045

• 100

Which digit is NOT considered significant?

• Any nonzero digit

• Leading zeros

• Captive zeros

• Trailing zeros after a decimal point

How many significant figures are in the number 200.0?

• 1

• 2

• 3

• 4

When multiplying 2.5 (2 sig figs) by 3.42 (3 sig figs), how many significant figures should the answer have?

• 1

• 2

• 3

• 4

Which rule is correct for counting significant figures in the number 0.07080?

• Count all digits

• Count only nonzero digits

• Count nonzero digits and zeros between or after nonzero digits

• Count only zeros

What is the correct way to round 3.456 to three significant figures?

• 3.4

• 3.45

• 3.46

• 3.5

Which of the following numbers has only 1 significant figure?

• 0.010

• 0.1

• 10.0

• 100.0

How many significant figures are in the measurement 0.02030?

• 2

• 3

• 4

• 5