Scientific notation and significant figures assignment and quiz

Which number is equal to -906,060? -9.0606 x 10^5 -9.06 x 10^5 9.06 x 10^-55 9.0606 x 10^-5

-9.0606 x 10^5

Jon performs the following calculation. (1)(2.0)(3.00)(4.000) Which value from his calculation most strongly affects the number of significant figures in the answer? 1 2.0 3.00 4.000

1

What is the correct way to write 1,550,000,000 in scientific notation? 1.55 x 10^9 1.55 x 10^10 15.5 x 10^8 15.5 x 10^9

1.55 x 10^9

Consider this equation: 2.524 g (5.1 × 106 g) ÷ (6.85 × 103 g) = ? How many significant figures should the result have? Choose the correct answer: 1.9 × 10^3 g 1.9 × 10^6 g 1.9 × 10^10 g Which metric unit would be the best choice to report the result? kg mg ng

2 1.9 × 10^3 g kg

How many significant figures does each measurement have? 52,000,000 km 3,000. g 0.0000750 m 1.7 x 10^-6 cm 3 x 10^8 g

2 4 3 2 1

Consider the following equation: 0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ? How many digits to the right of the decimal point should be used to report the result? Choose the correct answer: -1.50 × 10^-4 g 9.66 × 10^-3 g 1.21 × 10^-2 g Which metric unit would be the best choice to report the result? kg mg ng

2 9.66 × 10-3 g mg

Andi performs the calculation that is shown below. mc007-1.jpg How should the answer be reported using the correct number of significant figures? 3.59 3.591 3.6 4

3.59

Which number corresponds to the number in scientific notation? 3.21 × 104 kg 2.0 × 10-5 L

32,100 0.000020

oan writes four numbers on the board in standard form, and then she writes their scientific notation. The table below shows her numbers. Joan's Numbers Row Number in standard form Number in scientific notation 1 7,100 7.1 mc021-1.jpg 103 2 -0.000041 -4.1 mc021-2.jpg 10-5 3 -39,000 -3.9 mc021-3.jpg 104 4 120,000 1.2 mc021-4.jpg 106 In which row of the table did Joan make a mistake in writing the scientific notation? 1 2 3 4

4

How is each measurement represented using scientific notation? 48,000,000,000 g = 4.8 × 10^10 g 48 × 10^9 g 48 × 10^-10 g

4.8 × 1010 g

What is the correct way to represent 5600 L using scientific notation? -5.6 x 103 L -5.6 x 10^-3 L 5.6 x 10^-3 L 5.6 x 10^3 L

5.6 x 10^3 L

Which is the correct way to write 602,200,000,000,000,000,000,000 in scientific notation? 6022 x 10^19 6022 x 10^20 6.022 x 10^22 6.022 x 10^23

6.022 x 10^23

The O-O bond length in oxygen gas is 1.20741 x 10^-10 m. The atomic radius is exactly 1/2 of the O-O bond length. Which is the atomic radius of oxygen, correctly written in scientific notation with the correct number of significant figures? 6 x 10^-11 6.037 x 10^-11 6.03705 x 10^-11 6.04 x 10^-11

6.03705 x 10^-11

How is 6.3 written in scientific notation? 6.3 x 10^0 63 x 10^-1 6.3 x 10^1 63 x 10^0

6.3 x 10^0

0.000000655 mL = 6.55 × 10^-7 mL 6.55 × 10^9 mL 655 × 10^6 mL

6.55 × 10^-7 mL

Which measurement of length is the smallest? 9 x 10^-6 m 7 x 10^-5 m 7 x 10^1 m 9 x 10^2 m

9 x 10^-6 m

Which of these rules is applicable to subtracting two values that have different numbers of decimal places (for example, subtracting 2.1 from 2.15)? The answer is less accurate than either value. The answer is more precise than either value. The answer has the same number of decimal places as the least precise value. The answer has the same number of significant figures as the most precise value.

The answer has the same number of decimal places as the least precise value.

What rules should you follow when multiplying and dividing? Check all that apply. The exponents in scientific notation should be added when multiplying, and subtracted when dividing. The exponents need to be the same so the leading numbers can be multiplied or divided. The result has the same number of decimal places as the least precise number. The result has the same number of significant figures as the number with the fewest significant figures.

The exponents in scientific notation should be added when multiplying, and subtracted when dividing. The result has the same number of significant figures as the number with the fewest significant figures.

What rules should you follow when adding and subtracting? Check all that apply. The exponents in scientific notation should be added or subtracted. The exponents need to be the same so the leading numbers can be added or subtracted. The result has the same number of decimal places as the least precise number. The result has the same number of significant figures as number with the fewest significant figures.

The exponents need to be the same so the leading numbers can be added or subtracted. The result has the same number of decimal places as the least precise number.

William adds two values, following the rules for using significant figures in computations. He should write the sum of these two numbers by using... the same number of decimal places as the least precise value. the same number of decimal places as the most precise value. a range of the number of significant figures in the two values. an average of the number of significant figures in the two values.

the same number of decimal places as the least precise value.

Henry divides 1.060 g by 1.0 mL to find the density of his water sample. How many significant figures should he include in the density value that he reports? one two three four

two