measuring, s.f., sci not

Calculate 923 g ÷ 20312 cm³ and give your answer with the correct number of significant figures.

• 0.04 g/cm³
• 0.045 g/cm³
• 0.0454 g/cm³
• 0.05 g/cm³

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s
• 3.9 m/s
• 3.90 m/s
• 3.897 m/s

When multiplying and dividing measured quantities, the number of significant figures in the result should be equal to the number of significant figures in ____.

• all of the measurements

• the least and most precise measurements the most precise

• measurement

• the least precise measurement

Which answer is rounded to the correct place for the equation below?

457.1 + 459.32 = 916.42

• 916.42

• 916.4

• 916.0

• 916

Calculate and report the answer in scientific notation using the correct number of significant figures.

         6.02 x 10²³    X    5.47 x 10¹⁷

• 3.29 x 10⁴⁰

• 3.3 x 10⁴⁰

• 3.3 x 10⁴¹

• 3.29 x 10⁴¹

• 9.09 x 10⁷

• 9.09 x 10^-7

• 9.09 x 10^-6

• 9.09 x 10^-8

When adding or subtracting numbers, the minimum number of which should be reported? 

ex: 45.5 + 12
    

• significant figures

• decimals

• digits

When multiplying or dividing numbers, the minimum number of which should be reported?

ex: 45.5 x 12

• significant figures

• decimals

• digits

Which digits are significant?

0.0039270

• 0.0039270

• 0.0039270

• 0.0039270

• 0.0039270

Tags

significant figures

Which digits are significant?

36000.

• 36000.

• 36000.

• 36000.

• 36000.

Tags

significant figures