Pre Lab Quiz 2

Perform the calculation, rounding your answer to the proper number of significant figures. 0.35200 ÷ 2.740 =

.1285

Perform the calculation, rounding your answer to the proper number of significant figures. 0.32610 ÷ 1.830 =

.1782

A football field is 120 yards by 53.333 yards. What is the area of the football field in acres if 1 acre=43560 ft2? Use correct significant figures when answering this question.

1.3

To convert between units, you need to know the relationship between units. For example, one mile equals 5280 feet. This relationship can now be used as a conversion factor, set up as required by the question. For each conversion, choose the correct arrangement of the conversion factor and complete the calculation. 1. Convert 7860 feet to miles

1.49

To convert between units, you need to know the relationship between units. For example, one mile equals 5280 feet. This relationship can now be used as a conversion factor, set up as required by the question. For each conversion, choose the correct arrangement of the conversion factor and complete the calculation. 1. Convert 7860 feet to miles 7860 feet×( A )/( B )

1.49

Calculate the volume of a box, in cubic centimeters, which is 423 cm long, 12 cm wide, and 25 cm high. Report your answer with correct significant figures in cubic centimeters.

130000

Perform the calculation, rounding your answer to the proper number of significant figures. 0.125 + 4.09 + 13.0065 =

17.22

Knowing that one day is 24 hours, how many days is 59.7 hours?

2.49

Perform the calculation, rounding your answer to the proper number of significant figures. 0.867 + 3.72 + 18.0045 =

22.59

Knowing that one day is 24 hours, how many days is 77.4 hours?

3.23

Perform the calculation, rounding your answer to the proper number of significant figures. 0.841 x 7.34 x 5.1 =

31

Calculate the volume, in cubic centimeters, of a box which is 125 cm long, 37 cm wide, and 68 cm high. Report your answer with correct significant figures in cubic centimeters.

310000

Perform the calculation, rounding your answer to the proper number of significant figures. 0.982 x 4.71 x 8.3 =

38

Perform the calculation, rounding your answer to the proper number of significant figures. 6.57 - 0.00091 =

6.57

Knowing that one day is 24 hours and one hour is 60 minutes, how many minutes are in 5.6 days?

8100

Knowing that one day is 24 hours and one hour is 60 minutes, how many minutes are in 5.7 days?

8200

Determine the number of significant figures in each measurement. Then, choose the representation of the number where x is in place of the estimated digit from the measurement. a) 14.8m b) $10.25 c) 0.05 L d) 1.000 g/mL e) 6200cm f) 403 kg

a) 3; 14.x b) 4; 10.2x c) 1; 0.0x d) 4; 1.00x e) 2; 6x00 f) 3; 40x

A kilogram is defined as 1000 grams. This number _____which means that it has ____ significant figures.

is an exact number, infinite

When performing a multiplication or division calculation, ____ in the calculated result are dictated by the significant figures of the measured numbers. The calculated result should have ____ the measured number in the calculation with the fewest _____.

significant figures, the same number of significant figures as, significant figures