Question 1

Which of the following numbers is correctly written in scientific notation?

Accepted Answer

$$8.2 × 10^3$$

Question 2

A red blood cell has a diameter of approximately 7.0 × 10^-6 meters. What is this value in standard notation?

Accepted Answer

0.000007 meters

Question 3

Which of the following best describes the 'coefficient' in scientific notation?

Accepted Answer

It is a number at least 1 but less than 10.

Question 4

A laboratory measurement reads 0.00032 grams. What is the correct scientific notation for this value?

Accepted Answer

3.2 × 10^-4 grams

Question 5

Which of the following is NOT a requirement for a number to be in proper scientific notation?

Accepted Answer

The exponent must always be positive.

Question 6

A typical human cell is about 1.0 × 10^-5 meters in diameter. If a microscope can resolve objects as small as 2.5 × 10^-6 meters, can it clearly resolve the cell? (Assume 'resolve' means the object is larger than the minimum resolvable size.)

Accepted Answer

Yes, because the cell is larger than the microscope's limit.

Question 7

Convert $$4.56 × 10^7 to $$standard notation.

Accepted Answer

45,600,000

Question 8

Which of the following standard notation values is correctly converted to scientific notation?

Accepted Answer

0.00089 = 8.9 × 10^-4

Question 9

A solution contains $$1.25 × 10^4$$ molecules per microliter. If you have 2 microliters, how many molecules do you have in standard notation?

Accepted Answer

25,000

Question 10

Which of the following is an INCORRECT scientific notation for the number 0.00056?

Accepted Answer

0.56 × 10^-3

Question 11

If you move the decimal point to the right when converting from scientific to standard notation, what does this indicate about the exponent?

Accepted Answer

The exponent is positive.

Question 12

A physiological rate is measured as 3.25 × 10^-6 mol/L. Which of the following best explains the meaning of the negative exponent in this context?

Accepted Answer

The value is less than one.

Question 13

Which of the following numbers, when written in scientific notation, would have a positive exponent?

Accepted Answer

2,300,000

Question 14

A student writes $$15.2 × 10^3 as $$the scientific notation for 15,200. What is the error in this notation?

Accepted Answer

The coefficient is not between 1 and 10.

Question 15

Which of the following best explains why scientific notation is essential in Anatomy & Physiology?

Accepted Answer

It makes it possible to express extremely large or small measurements, such as cell sizes and concentrations, in a manageable way.

Question 16

A researcher records a measurement as $$1.6100 × 10^4. $$What is the value in standard notation?

Accepted Answer

16,100

Question 17

Which of the following is the correct scientific notation for 101,325,000?

Accepted Answer

$$1.01325 × 10^8$$

Question 18

If you convert 0.0000145 to scientific notation, what is the correct result?

Accepted Answer

1.45 × 10^-5

Question 19

A student is asked to convert $$3.2 × 10^3 to $$standard notation. Which of the following is the correct answer?

Accepted Answer

3,200

Question 20

Which of the following statements about converting standard notation to scientific notation is correct?

Accepted Answer

Moving the decimal to the left increases the exponent.

Scientific Notation: Concepts and Conversions

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