Question 1

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

Accepted Answer

$$8.2 × 10^3$$

Question 2

A laboratory measurement yields a value of 0.00042 grams. Which of the following is the correct scientific notation for this value?

Accepted Answer

4.2 × 10^-4

Question 3

Convert $$5.67 × 10^6 to $$standard notation.

Accepted Answer

5,670,000

Question 4

Which of the following statements about scientific notation is FALSE?

Accepted Answer

The exponent can be a decimal or a fraction.

Question 5

A cell biologist records a measurement as 2.50 × 10^-7 meters. What is this value in standard notation?

Accepted Answer

0.000000250

Question 6

Which of the following is NOT a correct conversion from standard to scientific notation?

Accepted Answer

12,000 = $$1.2 × 10^5$$

Question 7

A blood sample contains 3.25 × 10^-6 moles of a substance. Which of the following best describes how to convert this to standard notation?

Accepted Answer

Move the decimal 6 places to the left

Question 8

A student writes $$0.00320 × 10^8 as a $$scientific notation value. What is the error in this notation?

Accepted Answer

The coefficient is not between 1 and 10

Question 9

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

Accepted Answer

It makes it easier to express and work with very large or very small measurements common in scientific calculations.

Question 10

A researcher records a measurement as $$1.01325 × 10^8. $$What is this value in standard notation?

Accepted Answer

101,325,000

Question 11

Which of the following numbers is NOT correctly written in scientific notation?

Accepted Answer

7.3000 × $$2^2$$

Question 12

A solution contains 0.00056 moles of solute. What is the correct scientific notation for this value?

Accepted Answer

5.6 × 10^-4

Question 13

If you increase the coefficient in scientific notation, what happens to the exponent?

Accepted Answer

The exponent decreases

Question 14

Which of the following best describes the role of the exponent in scientific notation?

Accepted Answer

It tells you how many places to move the decimal point to convert to standard notation.

Question 15

A student is asked to convert 0.0000145 to scientific notation. Which of the following is the correct answer?

Accepted Answer

1.45 × 10^-5

Question 16

Which of the following is the correct standard notation for $$3.2 × 10^3$$?

Accepted Answer

3,200

Question 17

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

Accepted Answer

16,100

Question 18

Which of the following is a common mistake when writing numbers in scientific notation?

Accepted Answer

Using a coefficient less than 1

Question 19

A scientist needs to express the number 0.00000325 in scientific notation. What is the correct answer?

Accepted Answer

3.25 × 10^-6

Question 20

Which of the following best describes the process for converting a large number, such as 71,700, into scientific notation?

Accepted Answer

Move the decimal left until the coefficient is between 1 and 10, and count the number of moves as the positive exponent.

Scientific Notation: Concepts and Conversions

Study Guide - Practice Questions