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Chapter 9: Problem 61

Select the best estimate for the weight of the given item. The weight of a nickel a. \(5 \mathrm{~kg}\) b. \(5 \mathrm{~g}\) c. \(5 \mathrm{mg}\)

Short Answer

Expert verified
b. \(5 \mathrm{~g}\)

Step by step solution

01

Understanding the weight units

The first step involves knowing the weight units. A kilogram (kg) is a basic unit of mass in the Metric system and is bigger than a gram (g). A gram is a unit of mass in the metric system and is smaller than a kilogram but larger than a milligram (mg). A milligram is a unit of mass in the metric system and is smaller than both a gram and a kilogram.
02

Comparing the weights

Now, it's a matter of using common sense and knowledge about the world. Clearly, it's known that a nickel is not as heavy as 5 kg, and it's definitely heavier than 5 mg.
03

Selecting the best estimate

So, the weight of a nickel is best estimated as 5 grams, which corresponds to option b.

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Most popular questions from this chapter

Select the best estimate for the measure of the given item. The dimensions of a piece of typing paper a. \(22 \mathrm{~mm}\) by \(28 \mathrm{~mm}\) b. \(22 \mathrm{~cm}\) by \(28 \mathrm{~cm}\) c. \(22 \mathrm{dm}\) by \(28 \mathrm{dm}\) d. \(22 \mathrm{~m}\) by \(28 \mathrm{~m}\)

Use the unit fractions \(\frac{36 \mathrm{in} .}{1 \mathrm{yd}}\) and \(\frac{2.54 \mathrm{~cm}}{1 \mathrm{in} .}\). Convert \(8 \mathrm{yd}\) to \(\mathrm{cm}\).

Use the following English and metric equivalents, along with dimensional analysis, to convert the given measurement to the unit indicated.English and Metric Equivalents$$\begin{aligned}&1 \text { in. }=2.54 \mathrm{~cm} \\\&1 \mathrm{ft}=30.48 \mathrm{~cm} \\\&1 \mathrm{yd} \approx 0.9 \mathrm{~m} \\\&1 \mathrm{mi} \approx 1.6 \mathrm{~km}\end{aligned}$$ \(265 \mathrm{~km}\) to \(\mathrm{mi}\)

Is the volume of a coin approximately 1 cubic centimeter, 1 cubic millimeter, or 1 cubic decimeter? Explain your answer.

Use the unit fractions \(\frac{36 \mathrm{in} .}{1 \mathrm{yd}}\) and \(\frac{2.54 \mathrm{~cm}}{1 \mathrm{in} .}\). Convert \(762 \mathrm{~cm}\) to \(\mathrm{yd}\).
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