Question 1

Which of the following statements best describes the relationship between the number of significant figures and the precision of a measurement?

Accepted Answer

A measurement with more significant figures is generally more precise.

Question 2

Given the measurement $$0.013200972000$$, how many significant figures does it have?

Accepted Answer

$$11$$

Question 3

Which of the following numbers has exactly $$2$$ significant figures?

Accepted Answer

$$10790$$

Question 4

If you are given the mass $$10.27\ \mathrm{kg}$$, how does its precision compare to $$10\ \mathrm{kg}$$?

Accepted Answer

$$10.27\ \mathrm{kg} is $$more precise because it has more significant figures.

Question 5

Which step is NOT part of determining the number of significant figures in a measurement?

Accepted Answer

Count all digits including leading and trailing zeros.

Question 6

How many significant figures are in the measurement $$0.0032$$?

Accepted Answer

$$2$$

Question 7

A scientist records a mass as $$015\ \mathrm{kg}. $$How many significant figures does this measurement have?

Accepted Answer

$$2$$

Question 8

Which of the following numbers has the greatest number of significant figures?

Accepted Answer

$$08.02$$

Question 9

Why are leading zeros not considered significant in measurements?

Accepted Answer

They are placeholders and do not represent measured values.

Question 10

A measurement is recorded as $$0.00435. $$How many significant figures does it have?

Accepted Answer

$$4$$

Question 11

Which of the following is the correct way to count significant figures in the number $$100$$?

Accepted Answer

There is $$1$$ significant figure unless a decimal is present.

Question 12

A student measures a length as $$0.09000\ \mathrm{m}. $$How many significant figures does this measurement have?

Accepted Answer

$$5$$

Question 13

Which of the following measurements is the most precise?

Accepted Answer

$$10.27\ \mathrm{kg}$$

Question 14

If a number is written as $$0.000320$$, how many significant figures does it have?

Accepted Answer

$$4$$

Question 15

Which of the following is true about trailing zeros in a number with a decimal point?

Accepted Answer

Trailing zeros are significant if a decimal point is present.

Question 16

A measurement is recorded as $$73917000. $$How many significant figures does it have?

Accepted Answer

$$7$$

Question 17

Which of the following numbers has only one significant figure?

Accepted Answer

$$100$$

Question 18

If a measurement is written as $$08.02$$, how many significant figures does it have?

Accepted Answer

$$4$$

Question 19

Which of the following is NOT a rule for determining significant figures?

Accepted Answer

Count all zeros regardless of their position.

Question 20

A measurement is recorded as $$0.00435. $$Which digit is NOT significant?

Accepted Answer

The leading zeros

Significant Figures and Precision in Physics Measurements

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