Scientific Notation Quiz: Test Your Knowledge of Large and Small Numbers

Question 1

What is the standard form of the number 2.5 x 10^6?

Accepted Answer

2,500,000

Answer

250

Answer

250,000

Answer

25,000,000

Question 2

What is the quotient of 4.8 x 10^5 divided by 2 x 10^2?

Accepted Answer

2.4 x 10^3

Answer

24

Answer

2.4

Answer

240

Question 3

The distance from Earth to the Sun is approximately 1.5 x 10^8 kilometers. What is this distance in standard form?

Accepted Answer

150,000,000

Answer

15,000,000

Answer

1,500,000

Answer

1,500

Question 4

Which of the following numbers is written in scientific notation?

Accepted Answer

3.4 x 10^-5

Answer

0.000034

Answer

34,000

Question 5

What is the value of (2 x 10^3) / (5 x 10^-2)?

Accepted Answer

4 x 10^5

Answer

4 x 10^1

Answer

4 x 10^-1

Answer

4 x 10^-5

Question 6

Express 0.0000045 in scientific notation.

Accepted Answer

4.5 x 10⁻⁶

Answer

4.5 x 10⁶

Answer

45 x 10⁻⁷

Question 7

What is the standard form of 3.2 x 10⁵?

Accepted Answer

320,000

Answer

0.000032

Answer

32,000

Answer

3,200,000

Question 8

Calculate (2.5 x 10⁴) x (1.2 x 10⁻²).

Accepted Answer

3 x 10²

Answer

3 x 10⁶

Answer

3 x 10⁻⁸

Answer

30 x 10²

Question 9

Divide (6.4 x 10⁸) by (8 x 10⁵).

Accepted Answer

8 x 10²

Answer

80 x 10²

Answer

0.8 x 10³

Answer

8 x 10⁻³

Question 10

The diameter of a red blood cell is approximately 7.5 x 10⁻⁶ meters.  What is this diameter in millimeters?

Accepted Answer

7.5 x 10⁻³ millimeters

Answer

7.5 x 10⁻² millimeters

Answer

7.5 x 10⁻¹ millimeters

Answer

7.5 x 10⁻⁹ millimeters

Question 11

The distance from Earth to the Sun is approximately 1.5 x 10⁸ kilometers. Express this distance in meters using scientific notation.

Accepted Answer

1.5 x 10¹¹ meters

Answer

15 x 10⁹ meters

Answer

1.5 x 10⁵ meters

Answer

1.5 x 10⁷ meters

Question 12

The mass of an electron is approximately 9.11 x 10⁻³¹ kilograms. What is this mass in grams?

Accepted Answer

9.11 x 10⁻²⁸ grams

Answer

9.11 x 10⁻³² grams

Answer

9.11 x 10⁻³¹ grams

Answer

9.11 x 10⁻³⁰ grams

Question 13

The population of a certain city is estimated to be 1.8 x 10⁶. If the city's growth rate is 2% per year, approximately how many people will be added to the population in one year?

Accepted Answer

3.6 x 10⁴

Answer

3.6 x 10⁷

Answer

3.6 x 10⁶

Answer

3.6 x 10⁵

Question 14

The diameter of a hydrogen atom is approximately 1 x 10⁻¹⁰ meters. If you lined up 1 million hydrogen atoms side-by-side, what would be the total length of the line in meters?

Accepted Answer

1 x 10⁻⁴ meters

Answer

1 x 10⁻¹⁶ meters

Answer

1 x 10⁻⁶ meters

Answer

1 x 10⁻¹⁰ meters